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i ntegrated c ircuits d ivision e 3 pb ds-cpc7592-r04 www.ixysic.com 1 cpc7592 line card access switch features ? ttl logic level inputs for 3.3v logic interfaces ? smart logic for power up / hot plug state control ? monolithic ic reliability ? low matched r on ? eliminates the need for zero cross switching ? flexible switch timing to transition from ringing mode to talk mode. ? clean, bounce-free switching ? tertiary protection consisting of integrated current limiting, voltage clamping, and thermal shutdown for slic protection ? 5v operation with power consumption < 10 mw ? intelligent battery monitor ? latched logic-level inputs, no external drive circuitry required ? small 16-pin soic package applications ? voip gateways ? central office (co) ? digital loop carrier (dlc) ? pbx systems ? digitally added main line (daml) ? hybrid fiber coax (hfc) ? fiber in the loop (fitl) ? pair gain system ? channel banks description the cpc7592 is a member of ixys integrated circuits division?s next generation line card access switch family. this monolithic 6-pole solid-state switch is available in a 16-pin soic package. it provides the necessary functions to replace two 2-form-c electro-mechanical relays used on traditional analog and contemporary integrated voice and data (ivd) line cards found in central office, access, and pbx equipment. because this device contains solid state switches for tip and ring line break, ringing injection/return, and test access, it needs only a +5v supply for operation and logic-level inputs for control. the cpc7592 is very similar to the cpc7582 with the addition of controlled start-up states and ttl compatible logic inputs. the cpc7592bc logic provides alternative test states from the cpc7592ba/bb while also providing greater protection scr trigger and hold current ratings. ordering information figure 1. cpc7592 block diagram part # description cpc7592ba 16-pin soic, with protection scr, 50/tube cpc7592batr 16-pin soic, with protection scr, 1000/reel CPC7592BB 16-pin soic, without protection scr, 50/tube CPC7592BBtr 16-pin soic, without protection scr, 1000/reel cpc7592bc 16-pin soic, with protection scr and ?monitor test state?, 50/tube cpc7592bctr 16-pin soic, with protection scr and ?monitor test state?, 1000/reel cpc7592 t line r line t bat v dd r bat d g n d v bat f gnd v ref in test in ringing t sd latch 3 5 4 14 2 6 7 8 16 1 13 12 15 9 10 11 l a t c h switch control logic +5v dc slic x x x x x x sw5 sw6 sw2 sw4 t test ringing 300 (min.) r test t ringing sw3 sw1 v bat secondary protection tip ring r ringing scr trip circ uit (cpc7592ba/bc)
i ntegrated c ircuits d ivision 2 www.ixysic.com r04 cpc7592 1. specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.1 package pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.2 pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.3 absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.4 esd rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.5 general conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.6 switch specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1.6.1 break switches, sw1 and sw2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1.6.2 ringing return switch, sw3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.6.3 ringing switch, sw4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 1.6.4 test switches, sw5 and sw6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 1.7 digital i/o electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 1.8 voltage and power specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 1.9 protection circuitry electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 1.10 truth tables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 1.10.1 cpc7592xa and cpc7592xb truth table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 1.10.2 cpc7592xc truth table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 2. functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 2.1 introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 2.1.1 cpc7592xa and cpc7592xb logic states . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 2.1.2 cpc7592xc logic states . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 2.2 under voltage switch lock out circuitry. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 2.2.1 introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 2.2.2 hot plug and power up circuit design considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 2.3 switch logic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 2.3.1 start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 2.3.2 switch timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 2.3.3 make-before-break operation - all vers ions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 2.3.4 break-before-make operation - cpc7592xa/b . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 2.3.5 break-before-make operation - all versions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 2.4 data latch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 2.5 t sd pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 2.6 ringing switch zero-cross current turn off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 2.7 power supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 2.8 battery voltage monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 2.9 protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 2.9.1 diode bridge/scr. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 2.9.2 current limiting function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 2.10 thermal shutdown. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 2.11 external protection elements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 3. manufacturing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 3.1 moisture sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 3.2 esd sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 3.3 reflow profile. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 3.4 board wash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 3.5 mechanical dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 3.5.1 cpc7592ba / CPC7592BB / cpc7592bc 16-pin soic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 3.5.2 cpc7592batr / CPC7592BBtr / cpc7592bctr tape & reel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
i ntegrated c ircuits d ivision cpc7592 r04 www.ixysic.com 3 1. specifications 1.1 package pinout 1.2 pinout 1.3 absolute maximum ratings absolute maximum electrical ratings are at 25 ? c. absolute maximum ratings are stress ratings. stresses in excess of these ratings can cause permanent damage to the device. functional operation of the device at conditions beyond those indicated in the operational sections of this data sheet is not implied. 1.4 esd rating 1.5 general conditions unless otherwise specified, minimum and maximum values are production testing requirements. typical values are characteristic of the device and are the result of engineering evaluations. they are provided for information purposes only and are not part of the testing requirements. specifications cover the operating temperature range t a = -40 ? c to +85 ? c. also, unless otherwise specified all testing is performed with v dd = 5v dc , logic low input voltage is 0v dc and logic high voltage is 5v dc . pin name description 1 f gnd fault ground 2 t bat tip lead to the slic 3 t line tip lead of the line side 4 t ringing ringing generator return 5 t test tip lead of the test bus 6 v dd +5 v supply 7 t sd temperature shutdown pin 8 d gnd digital ground 9 in test logic control input 10 in ringing logic control input 11 latch data latch enable control input 12 r test ring lead of the test bus 13 r ringing ringing generator source 14 r line ring lead of the line side 15 r bat ring lead to the slic 16 v bat battery supply 1 16 2 15 3 14 4 13 5 12 6 11 7 10 8 9 t bat sd f gnd t line t ringing t test v dd t d gnd v bat r bat r line r ringing r test latch in ringing in test parameter minimum maximum unit +5 v power supply (v dd ) -0.3 7 v battery supply - -85 v d gnd to f gnd separation -5 +5 v logic input voltage -0.3 v dd + 0.3 v logic input to switch output isolation - 320 v switch open-contact isolation (sw1, sw2, sw3, sw5, sw6) - 320 v switch open-contact isolation (sw4) - 465 v operating relative humidity 5 95 % operating temperature -40 +110 ? c storage temperature -40 +150 ? c esd rating (human body model) 1000 v
i ntegrated c ircuits d ivision 4 www.ixysic.com r04 cpc7592 1.6 switch specifications 1.6.1 break switches, sw1 and sw2 parameter test conditions symbol minimum typical maximum unit off-state leakage current v sw1 (differential) = t line to t bat v sw2 (differential) = r line to r bat all-off state. +25 ? c, v sw (differential) = -320 v to gnd v sw (differential) = +260 v to -60 v i sw - 0.1 1 ? a +85 ? c, v sw (differential) = -330 v to gnd v sw (differential) = +270 v to -60 v 0.3 -40 ? c, v sw (differential) = -310 v to gnd v sw (differential) = +250 v to -60 v 0.1 on resistance i sw (on) = 10 ma, 40 ma, r bat and t bat = -2 v +25 ? c r on - 14.5 - ? +85 ? c20.528 -40 ? c10.5- on resistance matching per sw1 & sw2 on resistance test conditions. ? r on - 0.15 0.8 ? dc current limit v sw (on) = 10 v, +25 ? c i sw - 300 - ma v sw (on) = 10 v, +85 ? c 80 160 v sw (on) = 10 v, -40 ? c - 400 425 dynamic current limit (t = <0.5 ? s) break switches on, all other switches off. apply 1 kv 10x1000 ? s pulse with appropriate protection in place. i sw -2.5- a logic input to switch output isolation +25 ? c, logic inputs = gnd, v sw (t line , r line ) = 320 v i sw -0.1 1 ? a +85 ? c, logic inputs = gnd, v sw (t line , r line ) = 330 v -0.3 -40 ? c, logic inputs = gnd, v sw (t line , r line ) = 310 v -0.1 dv/dt sensitivity - - - 500 - v/ ? s
i ntegrated c ircuits d ivision cpc7592 r04 www.ixysic.com 5 1.6.2 ringing return switch, sw3 parameter test conditions symbol minimum typical maximum unit off-state leakage current v sw3 (differential) = t line to t ringing all-off state. +25 ? c, v sw (differential) = -320 v to gnd v sw (differential) = +260 v to -60 v i sw - 0.1 1 ? a +85 ? c, v sw (differential) = -330 v to gnd v sw (differential) = +270 v to -60 v 0.3 -40 ? c, v sw (differential) = -310 v to gnd v sw (differential) = +250 v to -60 v 0.1 on resistance i sw (on) = 0 ma, 10 ma, +25 ? c r on - 60 - ? i sw (on) = 0 ma, 10 ma, +85 ? c 85 100 i sw (on) = 0 ma, 10 ma, -40 ? c 45 - dc current limit v sw (on) = 10 v, +25 ? c i sw - 135 -ma v sw (on) = 10 v, +85 ? c 70 85 v sw (on) = 10 v, -40 ? c - 210 dynamic current limit (t = <0.5 ? s) ringing switches on, all other switches off. apply 1 kv 10x1000 ? s pulse with appropriate protection in place. i sw -2.5- a logic input to switch output isolation +25 ? c, logic inputs = gnd, v sw (t ringing , t line ) = 320 v i sw - 0.1 1 ? a +85 ? c, logic inputs = gnd, v sw (t ringing , t line ) = 330 v 0.3 -40 ? c, logic inputs = gnd, v sw (t ringing , t line ) = 310 v 0.1 dv/dt sensitivity - - - 500 - v/ ? s
i ntegrated c ircuits d ivision 6 www.ixysic.com r04 cpc7592 1.6.3 ringing switch, sw4 parameter test conditions symbol minimum typical maximum unit off-state leakage current v sw4 (differential) = r line to r ringing all-off state. +25 ? c v sw (differential) = -255 v to +210 v v sw (differential) = +255 v to -210 v i sw - 0.05 1 ? a +85 ? c v sw (differential) = -270 v to +210 v v sw (differential) = +270 v to -210 v 0.1 -40 ? c v sw (differential) = -245 v to +210 v v sw (differential) = +245 v to -210 v 0.05 on resistance i sw (on) = 70 ma, 80 ma r on -1015 ? on voltage i sw (on) = 1 ma v on -1.53 v on-state leakage current inputs set for ringing -measure ringing generator current to ground. i ringing -0.10.25ma steady-state current* inputs set for ringing mode. i sw - - 150 ma surge current* ringing switches on, all other switches off. apply 1 kv 10x1000 ? s pulse with appropriate protection in place. i sw --2a release current sw4 transition from on to off. i ringing - 300 - ? a logic input to switch output isolation +25 ? c, logic inputs = gnd, v sw (r ringing , r line ) = 320 v i sw - 0.1 1 ? a +85 ? c, logic inputs = gnd, v sw (r ringing , r line ) = 330 v 0.3 -40 ? c, logic inputs = gnd, v sw (r ringing , r line ) = 310 v 0.1 dv/dt sensitivity - - - 500 - v/ ? s *secondary protection and current limiting must prevent exceeding this parameter.
i ntegrated c ircuits d ivision cpc7592 r04 www.ixysic.com 7 1.6.4 test switches, sw5 and sw6 parameter test conditions symbol minimum typical maximum unit off-state leakage current v sw1 (differential) = t line to t bat v sw2 (differential) = r line to r bat all-off state. +25 ? c, v sw (differential) = -320 v to gnd v sw (differential) = +260 v to -60 v i sw - 0.1 1 ? a +85 ? c, v sw (differential) = -330 v to gnd v sw (differential) = +270 v to -60 v 0.3 -40 ? c, v sw (differential) = -310 v to gnd v sw (differential) = +250 v to -60 v 0.1 on resistance i sw (on) = 10 ma, 40 ma, r bat and t bat = -2 v +25 ? c r on - 38 - ? +85 ? c4670 -40 ? c28- dc current limit v sw (on) = 10 v, +25 ? c i sw - 175 - ma v sw (on) = 10 v, +85 ? c 80 110 v sw (on) = 10 v, -40 ? c - 210 250 dynamic current limit (t = <0.5 ? s) break switches on, all other switches off. apply 1 kv 10x1000 ? s pulse with appropriate protection in place. i sw -2.5- a logic input to switch output isolation +25 ? c, logic inputs = gnd, v sw (t line , r line ) = 320 v i sw -0.1 1 ? a +85 ? c, logic inputs = gnd, v sw (t line , r line ) = 330 v -0.3 -40 ? c, logic inputs = gnd, v sw (t line , r line ) = 310 v -0.1 dv/dt sensitivity - - - 500 - v/ ? s
i ntegrated c ircuits d ivision 8 www.ixysic.com r04 cpc7592 1.7 digital i/o electrical specifications 1.8 voltage and power specifications parameter test conditions symbol minimum typical maximum unit input characteristics input voltage, logic low input voltage falling v il 0.8 1.1 - v input voltage, logic hi gh input voltage rising v ih 1.9 2.4 input leakage current, in ringing and in test , logic high v dd = 5.5 v, v bat = -75 v, v hi =2.4v i ih -0.11 ? a input leakage current, in ringing and in test , logic low v dd = 5.5 v, v bat = -75 v, v il = 0.4v i il -0.11 ? a input leakage current, latch logic high v dd = 4.5 v, v bat = -75 v, v ih = 2.4v i ih 10 28 - ? a input leakage current, latch logic low v dd = 5.5 v, v bat = -75 v, v il = 0.4v i il - 46 125 ? a input leakage current, t sd logic high v dd = 5.5 v, v bat = -75 v, v ih = 2.4 i ih 10 16 30 ? a input leakage current, t sd logic low v dd = 5.5 v, v bat = -75 v, v il = 0.4v i il 10 16 30 ? a output characteristics output voltage, t sd logic high v dd = 5.5 v, v bat = -75 v, i tsd = 10 ? av tsd_off 2.4 v dd -v output voltage, t sd logic low v dd = 5.5 v, v bat = -75 v, i tsd = 1ma v tsd_on -00 . 4v parameter test conditions symbol minimum typical maximum unit voltage requirements v dd - v dd 4.5 5.0 5.5 v v bat 1 - v bat -19 -48 -72 v 1 v bat is used only for internal protection circuitry. if v bat rises above-10 v, the device will enter the all-off state and will remain in the all-off state until the battery drops below approximately -15 v power specifications power consumption v dd = 5 v, v bat = -48 v, v ih = 2.4v, v il = 0.4v, measure i dd and i bat , talk and all-off states p - 5.5 10 mw all other states p - 6.5 10 mw v dd current in talk and all-off states v dd = 5 v, v bat = -48 v, v ih = 2.4v, v il = 0.4v i dd -1.12.0 ma v dd current in ringing state i dd -1.32.0 v bat current in any state v dd = 5v, v bat = -48 v, v ih = 2.4v, v il = 0.4v i bat -0.110 ? a
i ntegrated c ircuits d ivision cpc7592 r04 www.ixysic.com 9 1.9 protection circuitry electrical specifications parameter conditions symbol minimum typical maximum unit protection diode bridge forward voltage drop, continuous current (50/60 hz) apply dc current limit of break switches v f -2.13.0 v forward voltage drop, surge current apply dynamic current limit of break switches v f -5- protection scr (cpc7592xa and cpc7592xc) surge current - - - - * a trigger current: current into v bat pin. scr activates, +25 ? c i trig - 60 (cpc7592xa) 70 (cpc7592xc) -ma scr activates, +85 ? c 35 (cpc7592xa) 40 (cpc7592xc) hold current: current through protection scr scr remains active, +25 ? c i hold - 100 (cpc7592xa) 135 (cpc7592xc) -ma scr remains active, +85 ? c 60 (cpc7592xa) 110 (cpc7592xc) 70 (cpc7592xa) 115 (cpc7592xc) gate trigger voltage i gate = i trigger v tbat or v rbat v bat -4 - v bat -2 v reverse leakage current v bat = -48 v i vbat --1 . 0 ? a on-state voltage 0.5 a, t = 0.5 ? sv tbat or v rbat - -3 -v 2.0 a, t = 0.5 ? s-5 temperature shutdown specifications shutdown activation temperature not production tested - limits are guaranteed by design and quality control sampling audits. t tsd_on 110 125 150 ? c shutdown circuit hysteresis t tsd_off 10 - 25 ? c *passes gr1089 and itu-t k.20 with appropriate secondary protection in place. v bat must be capable of sourcing i trigger for the internal scr to activate.
i ntegrated c ircuits d ivision 10 www.ixysic.com r04 cpc7592 1.10 truth tables 1.10.1 cpc7592xa and cpc7592xb truth table 1.10.2 cpc7592xc truth table state in ringing in test latch t sd break switches ringing switches test switches ta l k 0 0 0 z 1 on off off te s t 0 1 o f f o f f on ringing 1 0 off on off all-off 1 1 off off off latched x x 1 unchanged all-off x x x 0 off off off 1 z = high impedance. because t sd has an internal pull up at this pin, it should be c ontrolled with an open-collector or open-drain type device. state in ringing in test latch t sd break switches ringing switches test switches ta l k 0 0 0 z 1 on off off test/monitor 0 1 on off on ringing 1 0 off on off ringing test 1 1 off on on latched x x 1 unchanged all-off x x x 0 off off off 1 z = high impedance. because t sd has an internal pull up at this pin, it should be c ontrolled with an open-collector or open-drain type device.
i ntegrated c ircuits d ivision cpc7592 r04 www.ixysic.com 11 2. functional description 2.1 introduction 2.1.1 cpc7592xa and cpc7592xb logic states ? talk . break switches sw1 and sw2 closed, ringing switches sw3 and sw4 open, and test switches sw5 and sw6 open. ? ringing . break switches sw1 and sw2 open, ringing switches sw3 and sw4 closed, and test switches sw5 and sw6 open. ? test . break switches sw1 and sw2 open, ringing switches sw3 and sw4 open, and loop test switches sw5 and sw6 closed. ? all-off . break switches sw1 and sw2 open, ringing switches sw3 and sw4 open, and test switches sw5 and sw6 open. 2.1.2 cpc7592xc logic states ? talk . break switches sw1 and sw2 closed, ringing switches sw3 and sw4 open, and test switches sw5 and sw6 open. ? ringing . break switches sw1 and sw2 open, ringing switches sw3 and sw4 closed, and test switches sw5 and sw6 open. ? test/monitor . break switches sw1 and sw2 closed, ringing switches sw3 and sw4 open, and test switches sw5 and sw6 closed. ? ringing test . break switches sw1 and sw2 open, ringing switches sw3 and sw4 closed, and test switches sw5 and sw6 closed. ? all-off . break switches sw1 and sw2 open, ringing switches sw3 and sw4 open, and test switches sw5 and sw6 open. the cpc7592 offers break-before-make and make-before-break switching from the ringing state to the talk state with simple ttl level logic input control. solid-state switch construction means no impulse noise is generated when switching during ring cadence or ring trip, eliminating the need for external zero-cross switching circuitry. state control is via ttl logic-level input so no additional driver circuitry is required. the linear break switches sw1 and sw2 have exceptionally low r on and excellent matching characteristics. the ringing switch, sw4, has a minimum open contact breakdown voltage of 465 v at +25 ? c sufficiently high with proper protection to prevent breakdown in the presence of a transient fault condition (i.e., passing the transient on to the ringing generator). integrated into the cpc7592 is an over-voltage clamping circuit, active curr ent limiting, and a thermal shutdown mechanism to provide protection for the slic during a fault condition. positive and negative lightning surge currents are reduced by the current limiting circuitry and hazardous potentials are diverted away from the slic via the protection diode bridge or the optional integrated prot ection scr. power-cross potentials are also reduced by the current limiting and thermal shutdown circuits. to protect the cpc7592 from an over-voltage fault condition, use of a secondary protector is required. the secondary protector must limit the voltage seen at the tip and ring terminals to a level below the maximum breakdown voltage of the switches. to minimize the stress on the solid-state contacts, use of a foldback or crowbar type secondary protector is highly recommended. with proper selection of the secondary protector, a line card using the cpc7592 will meet all relevant itu, lssgr, tia/eia and iec protection requirements. the cpc7592 operates from a single +5 v supply. this gives the device extremely low power consumption in any state with virtually any range of battery voltage. the battery voltage used by the cpc7592 has a two fold function. it is used as a reference and as a current source for the internal integrated protection circuitry under surge conditions. second, it is used as a reference. in the event of battery voltage loss, the cpc7592 enters the all-off state. 2.2 under voltage switch lock out circuitry 2.2.1 introduction smart logic in the cpc7592 now provides for switch state control during both power up and power loss transitions. an internal detector is used to evaluate the v dd supply to determine when to de-assert the under voltage switch lock out circuitry with a rising v dd and when to assert the under voltage switch lock out circuitry with a falling v dd . any time unsatisfactory low v dd conditions exist the lock out circuit overrides user switch control by blocking the information at the external input pins and c onditioning internal switch
i ntegrated c ircuits d ivision 12 www.ixysic.com r04 cpc7592 commands to the all off state. upon restoration of v dd the switches will remain in the all-off state until the latch input is pulled low. the rising v dd lock out release threshold is internally set to ensure all internal logic is properly biased and functional before accepting external switch commands from the inputs to control the switch states. for a falling v dd event, the lock out threshold is set to assure proper logic and switch behavior up to the moment the switches are forced off and external inputs are suppressed. to facilitate hot plug insertion and power up control the latch pin has an integrated weak pull up resistor to the v dd power rail that will hold a non-driven latch pin at a logic high state. this enables board designers to use the cpc7592 with fpgas and other devices that provide high impedance outputs during power up and configuration. the weak pull up allows a fan out of up to 32 when the system?s latch control driver has a logic low minimum sink capability of 4ma. 2.2.2 hot plug and power up circuit design considerations there are six possible start up scenarios that can occur during power up. they are: 1. all inputs defined at power up & latch = 0 2. all inputs defined at power up & latch = 1 3. all inputs defined at power up & latch = z 4. all inputs not defined at power up & latch = 0 5. all inputs not defined at power up & latch = 1 6. all inputs not defined at power up & latch = z under all of the start up situations listed above the cpc7592 will hold all of it?s switches in the all-off state during power up. when v dd requirements have been satisfied the lcas will complete it?s start up procedure in one of three conditions. for start up scenario 1 the cpc7592 will transition from the all off state to the state defined by the inputs when v dd is valid. for start up scenarios 2, 3, 5, and 6 the cpc7592 will power up in the all-off state and remain there until the latch pin is pulled low. th is allows for an indefinite all off state for boards inserted into a powered system but are not configured for service or boards that need to wait for other devices to be configured first. start up scenario 4 will start up with all switches in the all-off state but upon the acceptance of a valid v dd the lcas will revert to one of the legitimate states listed in the truth tables and there after may randomly change states based on input pin leakage currents and loading. because the lcas state after power up can not be predicted with this start up condition it should never be utilized. on designs that do not wish to individually control the latch pins of multi-port cards it is possible to bus many (or all) of the latch pins together to create a single board level input enable control. 2.3 switch logic 2.3.1 start-up the cpc7592 uses smart logic to monitor the v dd supply. any time the v dd is below an internally set threshold, the smart logic pl aces the control logic to the all-off state. an internal pullup at the latch pin locks the cpc7592 in the all-off state following start-up until the latch pin is pulled down to a logic low. prior to the assertion of a logic low at the latch pin, the switch control inputs must be properly conditioned. 2.3.2 switch timing the cpc7592 provides, when switching from the ringing state to the talk state, the ability to control the release timing of the ringing switches sw3 and sw4 relative to the state of the switches sw1 and sw2 using simple ttl logic-level inputs. the two available techniques are referred to as make-before-break and break-before-make operation. when the break switch contacts of sw1 and sw2 are closed (made) before the ringing switch contacts of sw3 and sw4 are opened (broken), this is referred to as make-before-break operation. break-before-make operation occurs when the ringing contacts of sw3 and sw4 are opened (broken) before the switch contacts of sw1 and sw2 are closed (made). with the cpc7592, make-before-break and break-before-make operations can easily be accomplished by applying the proper sequence of logic-level inputs to the device. the logic sequences for either mode of operation are provided in ?make-before-break ringing to talk transition logic sequence for all versions? on page 13 , ?break-before-make ringing to talk transition logic
i ntegrated c ircuits d ivision cpc7592 r04 www.ixysic.com 13 sequence cpc7592xa/b? on page 14 , and ?break-before-make ringing to talk transition logic sequence for all versions? on page 15 . logic states and input control settings are provided in ?cpc7592xa and cpc7592xb truth table? on page 10 and ?cpc7592xc truth table? on page 10 . 2.3.3 make-before-break operation - all versions to use make-before-break operation, change the logic inputs from the ringing state directly to the talk state. application of the talk state opens the ringing return switch, sw3, as the break switches sw1 and sw2 close. the ringing switch, sw4, remains closed until the next zero-crossing of the ringing current. while in the make-before-break state, ringing potentials in excess of the cpc7592 protection circuitry thresholds will be diverted away from the slic. make-before-break ringing to talk trans ition logic sequence for all versions 2.3.4 break-before-make operation - cpc7592xa/b break-before-make operation of the cpc7592xa/b can be achieved using two different techniques. the first method uses manipulation of the in ringing and in test logic inputs as shown in ?break-before-make ringing to talk transition logic sequence cpc7592xa/b? on page 14 . 1. at the end of the ringing state apply the all off state (1,1). this releases the ringing return switch (sw3) while the ringing switch (sw4) remains on, waiting for the next zero current event. 2. hold the all off state for at least one-half of a ringing cycle to assure that a zero crossing event occurs and that sw4, the ringing switch, has opened. 3. apply inputs for the next desired state. for the talk state, the inputs would be (0,0). state in ringing in test latch t sd timing break switches ringing return switch (sw3) ringing switch (sw4) test switches ringing 1 0 0z -off on on off make- before- break 00 sw4 waiting for next zero-current crossing to turn off. maximum time is one-half of the ringing cycle. in this transition state current limited by the dc break switch current limit value will be sourced from the ring node of the slic. on off on off talk 0 0 zero-cross current has occurred on off off off
i ntegrated c ircuits d ivision 14 www.ixysic.com r04 cpc7592 break-before-make operation occurs when the ringing switches open before the break switches sw1 and sw2 close. break-before-make ringing to talk transition logic sequence cpc7592xa/b 2.3.5 break-before-make operation - all versions the second break-before-make method for the cpc7592xa/b is also the only method available for the cpc7592xc. as shown in ?cpc7592xa and cpc7592xb truth table? on page 10 and ?cpc7592xc truth table? on page 10 , the bi-directional t sd interface disables all of the cpc7592 switches when pulled to a logic low. although logically disabled, an active (closed) ringing switch (sw4) will remain closed until the next zero crossing current event. as shown in the table ?break-before-make ringing to talk transition logic sequence for all versions? on page 15 , this operation is similar to the one shown in ?break-before-make operation - all versions? on page 14 , except in the method used to select the all off state, and in when the in ringing and in test inputs are reconfigured for the talk state. 1. pull t sd to a logic low to end the ringing state. this opens the ringing return switch (sw3) and prevents any other switches from closing. 2. keep t sd low for at least one-half the duration of the ringing cycle period to allow sufficient time for a zero crossing current event to occur and for the circuit to enter the break-before-make state. 3. during the t sd low period, set the in ringing and in test inputs to the talk state (0, 0). 4. release t sd , allowing the internal pull-up to activate the break switches. when using t sd as an input, the two recommended states are ?0? which overrides the logic input pins and forces an all off state and ?z? which allows normal switch control via the logic input pins. this requires the use of an open-collector or open-drain type buffer. state in ringing in test latch t sd timing break switches ringing return switch (sw3) ringing switch (sw4) test switches ringing 1 0 0z -off on on off all-off 1 1 hold this state for at least one-half of the ringing cycle. sw4 waiting for zero current to turn off. off off on off break- before- make 11 zero current has occurred. sw4 has opened off off off off talk 0 0 break switches close. on off off off
i ntegrated c ircuits d ivision cpc7592 r04 www.ixysic.com 15 forcing t sd to a logic high disables the thermal shutdown circuit and is therefore not recommended as this could lead to device damage or destruction in the presence of excessive tip or ring potentials. break-before-make ringing to talk trans ition logic sequence for all versions 2.4 data latch the cpc7592 has an integrated transparent data latch. the latch enable operation is controlled by ttl logic input levels at the latch pin. data input to the latch is via the input pins in ringing and in test while the output of the data latch are internal nodes used for state control. when the latch enable control pin is at a logic 0 the data latch is transparent and the input control signals flow directly through the data latch to the state control circuitry. a change in input will be reflected by a change in the switch state. whenever the latch enable control pin is at logic 1, the data latch is active and data is locked. subsequent changes to the input controls in ringing and in test will not result in a change to the control logic or affect the existing switch state. the switches will remain in the state they were in when the latch changes from logic 0 to logic 1 and will not respond to changes in input as long as the latch is at logic 1. however, neither the t sd input nor the t sd output control functions are affected by the latch function. since internal thermal shutdown control and external ?all-off? control is not affected by the state of the latch enable input, t sd will override state control. 2.5 t sd pin description the t sd pin is a bi-directional i/o structure with an internal pull-up current source with a nominal value of 16 ? a biased from v dd . as an output, this pin indicates the status of the thermal shutdown circuitry. typically, during normal operation, this pin will be pulled up to v dd but under fault conditions that create excess thermal loading the cpc7592 will enter thermal shutdown and a logic low will be output. as an input, the t sd pin is utilized to place the cpc7592 into the ?all-off? state by simply pulling the input low. for applications using low-voltage logic devices (lower than v dd ), ixys ic division recommends the use of an open-collector or an open-drain type output to control t sd . this avoids sinking the t sd pull up bias current to ground during normal operation when the all-off state is not required. in general, ixys ic division recommends all applications use an open-collector or open-drain type device to drive this pin. setting t sd to a logic 1 or tying this pin to v cc allows switch control using the logic inputs. this setting, however, also disables the thermal shutdown circuit and is therefore not recommended. as a result the t sd pin has two recommended operating states when it is used as an input control. a logic 0, which forces state in ringing in test latch t sd timing break switches ringing return switch (sw3) ringing switch (sw4) test switches ringing 1 0 0 z - off on on off all-off 1 0 x0 hold this state for at least one-half of the ringing cycle. sw4 waiting for zero current to turn off. off off on off break- before- make 0 0 sw4 has opened off off off off talk 0 0 0 z close break switches on off off off
i ntegrated c ircuits d ivision 16 www.ixysic.com r04 cpc7592 the device to the all-off state and a high impedance (z) state for normal operation. this requires the use of an open-collector or open-drain type buffer. 2.6 ringing switch zero-cross current turn off after the application of a logi c input to turn sw4 off, the ringing switch is designed to delay the change in state until the next zero-crossing. once on, the switch requires a zero-current cross to turn off, and therefore should not be used to switch a pure dc signal. the switch will remain in the on state no matter the logic input until the next zero crossing. these switching characteristics will reduce and possibly eliminate overall system impulse noise normally associated with ringing switches. see ixys ic division?s application note an-144, impulse noise benefits of line card access switches for more information. the attributes of ringing switch sw4 may make it possible to eliminate the need for a zero-cross switching scheme. a minimum impedance of 300 ?? in series with the ringing generator is recommended. 2.7 power supplies both a +5 v supply and battery voltage are connected to the cpc7592. switch state control is powered exclusively by the +5 v supply. as a result, the cpc7592 exhibits extremel y low power consumption during active and idle states. although battery power is not used for switch control, it is required to supply trigger current for the integrated internal protection circ uitry scr during fault conditions. this integrated scr is designed to activate whenever the voltage at t bat or r bat drops 2 to 4 v below the applied voltage on the v bat pin. because the battery supply at this pin is required to source trigger current during negative overvoltage fault conditions at tip and ring, it is important that the net supplying this current be a low impedance path for high speed transients such as lightning. this will permit trigger currents to flow enabling the scr to activate and thereby prevent a fault induced negative overvoltage event at the t bat or r bat nodes. 2.8 battery voltage monitor the cpc7592 also uses the v bat voltage to monitor battery voltage. if system battery voltage is lost, the cpc7592 immediately enters the all-off state. it remains in this state until the battery voltage is restored. the device also enters the all-off state if the battery voltage rises more positive than about ?10 v with respect to ground and remains in the all-off state until the battery voltage drops below approximately ?15 v with respect to ground. this battery monitor feature draws a small current from the battery (less than 1 ? a typical) and will add slightly to the device?s overall power dissipation. this monitor function performs properly if the cpc7592 and slic share a common battery supply origin. otherwise, if battery is lost to the cpc7592 but not to the slic, then the v bat pin will be internally biased by the potential applied at the t bat or r bat pins via the internal protection circuitry scr trigger current path. 2.9 protection 2.9.1 diode bridge/scr the cpc7592 uses a combination of current limited break switches, a diode bridge/scr clamping circuit, and a thermal shutdown mechanism to protect the slic device or other associated circuitry from damage during line transient events such as lightning. during a positive transient condition, the fault current is conducted through the diode bridge to ground via f gnd . voltage is clamped to a diode drop above ground. during a negative transient of 2 to 4 v more negative than the voltage source at v bat , the scr conducts and faults are shunted to f gnd via the scr or the diode bridge. in order for the scr to crowbar (or foldback), the scr?s on-voltage (see ?protection circuitry electrical specifications? on page 9 ) must be less than the applied voltage at the v bat pin. if the v bat voltage is less negative than the scr on-voltage or if the v bat supply is unable to source the trigger current, the scr will not crowbar. for power induction or power-cross fault conditions, the positive cycle of the transient is clamped to a diode drop above ground and the fault current directed to ground. the negative cycle of the transient will cause the scr to conduct when the voltage exceeds the v bat reference voltage by two to four volts, steering the fault current to ground. note: the cpc7592xb does not contain the protection scr but instead uses diodes to clamp both polarities of a transient fault. these diodes direct the negative potential?s fault current to the v bat pin.
i ntegrated c ircuits d ivision cpc7592 r04 www.ixysic.com 17 2.9.2 current limiting function if a lightning strike transient occurs when the device is in the talk state, the current is passed along the line to the integrated protection circuitry and restricted by the dynamic current limit respons e of the active switches. during the talk state, when a 1000v 10x1000 ? s lightning pulse (gr-1089-core) is applied to the line though a properly clamped external protector, the current seen at t line and r line will be a pulse with a typical magnitude of 2.5 a and a duration less than 0.5 ? s. if a power-cross fault occurs with the device in the talk state, the current is passed though break switches sw1 and sw2 on to the integrated protection circuit but is limited by the dynam ic dc current limit response of the two break switches. the dc current limit specified over temperature is between 80 ma and 425 ma and the circuitry has a negative temperature coefficient. as a result, if the device is subjected to extended heating due to a power cross fault condition, the measured current at t line and r line will decrease as the device temperature increases. if the device temperature rises sufficiently, the temperature shutdown mechanism will activate and the device will enter the all-off state. 2.10 thermal shutdown the thermal shutdown mechanism activates when the device die temperature reaches a minimum of 110 ? c, placing the device in the all-off state regardless of logic input. during thermal shutdown events the t sd pin will output a logic low with a nominal 0 v level. a logic high is output from the t sd pin during normal operation with a typical output level equal to v dd . if presented with a short duration transient such as a lightning event, the thermal shutdown feature will typically not activate. but in an extended power-cross event, the device temperature will rise and the thermal shutdown mechanism will acti vate forcing the switches to the all-off state. at this point the current measured into t line or r line will drop to zero. once the device enters thermal shutdown it will remain in the all-off state until the temperature of the device drops below the de-activation level of the thermal shutdown circuit. this permits the device to autonomously return to normal operation. if the transient has not passed, current will again flow up to the value allowed by the dynamic dc current limi ting of the switches and heating will resume, reactivating the thermal shutdown mechanism. this cycle of entering and exiting the thermal shutdown mode will continue as long as the fault condition persists. if the magnitude of the fault condition is great enough, the external secondary protector will activate shunting the fault current to ground. 2.11 external protection elements the cpc7592 requires only over voltage secondary protection on the loop side of the device. the integrated protection feature described above negates the need for additional external protection on the slic side. the secondary protector must limit voltage transients to levels that do not exceed the breakdown voltage or input-output isolation barrier of the cpc7592. a foldback or crowbar type protector is recommended to minimize stresses on the cpc7592. consult ixys ic division? s application note, an-100, ? designing surge and power fault protection circuits for solid state subscrib er line interfaces ? for equations related to the specifications of external secondary protectors, fused resistors and ptcs.
i ntegrated c ircuits d ivision 18 www.ixysic.com r04 cpc7592 3 manufacturing information 3.1 moisture sensitivity all plastic encapsulated semiconductor packages are susc eptible to moisture ingression. ixys integrated circuits division clas sified all of its plastic encapsulated devices for moisture sensitivity according to the latest version of the joint industry standard, ipc/jedec j-std-020 , in force at the time of product evaluation. we test all of our products to the maximum conditions set forth in the standard, and guarantee proper operation of our devices when handled according to the limitations and information in that standard as well as to any limitations set forth in the information or standards referenced below. failure to adhere to the warnings or limitations as establ ished by the listed specificati ons could result in reduced product performance, reduction of operable life, and/or reduction of overall reliability. this product carries a moisture sensitivity level (msl) rating as shown below, and should be handled according to the requirements of the latest version of the joint industry standard ipc/jedec j-std-033 . 3.2 esd sensitivity this product is esd sensitive , and should be handled according to the industry standard jesd-625 . 3.3 reflow profile this product has a maximum body temperature and time rating as shown below. all other guidelines of j-std-020 must be observed. 3.4 board wash ixys integrated circuits division recommends the use of no-clean flux formulations. however, board washing to remove flux residue is acceptable, and the use of a short drying bake may be necessary. chlorine-based or fluorine-based solvents or fluxes should not be used. clean ing methods that employ ultrasonic energy should not be used. device moisture sensitivity level (msl) rating cpc7592ba / CPC7592BB / cpc7592bc msl 1 device maximum temperature x time cpc7592ba / CPC7592BB / cpc7592bc 260c for 30 seconds e 3 pb
i ntegrated c ircuits d ivision cpc7592 r04 www.ixysic.com 19 3.5 mechanical dimensions 3.5.1 cpc7592ba / CPC7592BB / cpc7592bc 16-pin soic 3.5.2 cpc7592batr / CPC7592BBtr / cpc7592bctr tape & reel (inches) mm dimensions notes: 1. coplanarity = 0.1016 (0.004) max. 2. leadframe thickness does not include solder plating (1000 microinch maximum). 0.406 0.076 (0.016 0.003) 10.211 0.254 (0.402 0.010) 7.493 0.127 (0.295 0.005) 10.312 0.381 (0.406 0.015) 1.270 typ (0.050 typ) 0.254 / +0.051 / -0.025 (0.010 / +0.002 / -0.001) 0.889 0.178 (0.035 0.007) 0.649 0.102 (0.026 0.004) pin 1 pin 16 2.337 0.051 (0.092 0.002) 0.203 0.102 (0.008 0.004) 45o 2.00 (0.079) 1.27 (0.050) 9.40 (0.370) 0.60 (0.024) recommended pcb land pattern for additional information please visit www.ixysic.com ixys integrated circuits division makes no representations or warr anties with respect to the accuracy or completeness of the co ntents of this publication and reserves the right to make changes to s pecifications and product descriptions at an y time without notice. neither circuit paten t licenses or indemnity are expressed or implied. except as set forth in ixys integrated circuits division?s standard terms and conditions of sale, ixys integrated c ircuits division assumes no liability whatsoever, and disclaims any express or implied warranty rela ting to its products, including, but not limited to, the implied warranty of merchantability, fitness for a particular purpose, or infringement of any intellectual property right. the products described in this document ar e not designed, intended, auth orized, or warranted for use as components in systems i ntended for surgical implant into the body, or in other applications intended to support or sustai n life, or where malfunction of ixys integrated circuits division?s product may result in direct physical harm, injury, or death to a person or severe property or environmental damage. ixys integrated circuits division reserves the r ight to discontinue or make changes to its products at any time without notice. specifications: ds-cpc7592-r04 ? copyright 2012, ixys in tegrated circuits division all rights reserved. printed in usa. 12/18/2012 dimensions mm (inches) embossment emb ossed carrier top co v er tape thickness 0.102 max. (0.004 max.) 330.2 dia. (13.00 dia.) k 0 =3.20 (0.126) k 1 =2.70 (0.106) a 0 =10.90 (0.429) w=16 (0.630) b 0 =10.70 (0.421) p=12.00 (0.472) notes: 1. all dimensions carry tolerances of eia standard 481-2 2. the tape complies with all ? notes? for constant dimensions listed on page 5 of eia-481-2

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