may 2011 doc id 16191 rev 2 1/8 8 slvu2.8 low voltage unit for gigabit ethernet protection features peak pulse current : i pp = 30 a 8/20 s low capacitance : c typ = 1.5 pf stand-off voltage : v r = 2.8 v low leakage current : i rmax = 0.2 a ecopack ? 2 compliant component iec 61000-4-5 (1kv 42 24 a) compliant at t j = 150 c complies with the following standards iec 61000-4-2 level 4 ? 15 kv (air discharge) ? 8 kv (contact discharge) iec 61000-4-4 level 4 ? 2 kv - 40 a (5/50 ns) iec 61000-4-5 level 2 ? 1 kv - 42 ieee 802.3ab and 802.3at compatible on both receiver (4 vmax ) and driver side ( 3.6 vmax) mil std 883g - method 3015-7 ? 25 kv (human body model) description the slvu2.8 series has been designed to protect ethernet line. its low capacitance makes it compatible with gigabit ethernet. slvu2.8-4a1 is designed to be compatible with gigabiit ethernet and gigabit poe by using two so-8 packages and can be used on 10/100 mbps ethernet by using a single device. slvu2.8-8a1 is designed to be compatible with gigabiit ethernet and gigabit poe by using a single so-8 package. surge capability is compat ible with iec 61000-4-5 class 2 (1 kv, 42 , 24 a). packaged in so-8, the slvu2.8 is a flow-through design in order to minimize trace inductances. footprint is in accordance with ipc 7531 standard. slvu2.8-4a1 slvu2.8-8a1 so-8 package www.st.com
characteristics slvu2.8 2/8 doc id 16191 rev 2 1 characteristics figure 1. pulse waveform table 1. absolute ratings (t amb = 25 c) symbol parameter value unit p pp peak pulse power (8/20 s) 600 w i pp peak pulse current (8/20 s) 30 a t stg storage temperature range -65 to + 150 c t j maximum junction temperaturee -55 to + 150 c t l maximum lead temperature for soldering during 10 s. 260 c table 2. electrical characteristics values (t amb = 25 c) order code i rm @v rm v cl @ i pp 8/20 s v cl @ i pp 8/20 s c i/o to i/o typ. max. max. 85 c max. max. typ. max. na a a v v a v a pf pf slvu2.8-4a1 2 0.2 1 2.8 15 24 12 12 1.5 2.5 slvu2.8-8a1 2 0.2 1 2.8 15 24 12 12 3 5 100 50 0 repetitive peak pulse current t = rise time (s) t = pulse duration time (s) r p t r t p %i pp
slvu2.8 characteristics doc id 16191 rev 2 3/8 figure 2. relative peak pulse power versus initial junction temperature figure 3. junction capacitance versus frequency (slvu2.8-4a1) 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 0 25 50 75 100 125 150 p [t initial] / p [t initial = 25 c] pp j pp j 0 1 2 3 4 5 10 100 1000 f(mhz) pin 1- 2 pin 3- 4 pin 5- 6 pin 7- 8 slvu2.8-4a1 v osc = 30 mv rms t j = 25 c c(pf) figure 4. junction capacitance versus frequency (slvu2.8-8a1) figure 5. junction capacitance versus reverse applied voltage (typical values) 0 1 2 3 4 5 10 100 1000 0 1 2 3 4 5 v osc = 30 mv rms t j = 25 c c(pf) pin 1- 2 pin 3- 4 pin 5- 6 pin 7- 8 slvu2.8-8a1 f(mhz) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0123 f = 1 mhz v osc = 30 mv t j = 25 c rms slvu2.8-4a1 slvu2.8-8a1 v (v) r c(f) figure 6. leakage current versus junction temperature (typical values) figure 7. s21 attenuation (typical value) vr = vrm 1 10 100 25 50 75 100 125 150 i (na) r t (c) j 300k 1m 3m 10m 30m 100m 300m 1g 3g -8 -6 -4 -2 0 1g - - - - - - - - f(hz) db
characteristics slvu2.8 4/8 doc id 16191 rev 2 figure 10. schematic for 10/100 mbps ethernet figure 8. connection for 10/100 mbps ethernet with slvu2.8-4a1 figure 9. connection for 1g ethernet with slvu2.8-8a1 pair #1 pair #2 pair #1 pair #2 pair #3 pair #4 v secondary protection tranceiver rj45 primary protection
slvu2.8 ordering information scheme doc id 16191 rev 2 5/8 figure 11. schematic for 1 gbps ethernet 1. for further information, refer to application note : an3007 2 ordering information scheme figure 12. ordering information scheme secondary protection tranceiver v v v v primary protection (optional) slvu 2.8 - 4 a 1 st low voltage unit stand off voltage v rm = 2.8 v number of lines version packaging 1 = so- 8
package information slvu2.8 6/8 doc id 16191 rev 2 3 package information case: jedec so-8 molded plastic over planar junction terminals: solder plated, solderable per mil-std-750, method 2026 flammability: epoxy is rated ul94v-0 rohs package in order to meet environmental requirements, st offers these devices in different grades of ecopack ? packages, depending on their level of environmental compliance. ecopack ? specifications, grade definitions and product status are available at: www.st.com . ecopack ? is an st trademark. table 3. so-8 dimensions ref. dimensions millimeters inches min. typ. max. min. typ. max. a1.750.069 a1 0.1 0.25 0.004 0.010 a2 1.25 0.049 b 0.28 0.48 0.011 0.019 c 0.17 0.23 0.007 0.009 d 4.80 4.90 5.00 0.189 0.193 0.197 e 5.80 6.00 6.20 0.228 0.236 0.244 e1 3.80 3.90 4.00 0.150 0.154 0.157 e 1.27 0.050 h 0.25 0.50 0.010 0.020 l 0.40 1.27 0.016 0.050 l1 1.04 0.041 k0 80 8 ppp 0.10 0.004 figure 13. foot print recommendations figure 14. marking e1 d 8 4 1 5 e e a a2 b a1 ppp c c k h x 45 l l1 seating plane c 6.8 (0.268) 4.2 (0.165) 1.27 (0.050) 0.6 (0.024) a xxxxx : marking zz : manufacturing location y : year ww : week z z z z y y w w w w x x x x x x x x x x x x pin 1
slvu2.8 ordering information doc id 16191 rev 2 7/8 4 ordering information 5 revision history table 4. ordering information order code marking package weight base qty delivery mode slvu2.8-4a1 SLVU284 so-8 78 mg 2500 tape and reel slvu2.8-8a1 SLVU288 so-8 78 mg 2500 tape and reel table 5. document revision history date revision changes 01-sep-2009 1 initial release. 31-may-2011 2 updated ethernet standar d compatibility on the cover page.
slvu2.8 8/8 doc id 16191 rev 2 please read carefully: information in this document is provided solely in connection with st products. stmicroelectronics nv and its subsidiaries (?st ?) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described he rein at any time, without notice. all st products are sold pursuant to st?s terms and conditions of sale. purchasers are solely responsible for the choice, selection and use of the st products and services described herein, and st as sumes no liability whatsoever relating to the choice, selection or use of the st products and services described herein. no license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. i f any part of this document refers to any third party products or services it shall not be deemed a license grant by st for the use of such third party products or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoev er of such third party products or services or any intellectual property contained therein. unless otherwise set forth in st?s terms and conditions of sale st disclaims any express or implied warranty with respect to the use and/or sale of st products including without limitation implied warranties of merchantability, fitness for a parti cular purpose (and their equivalents under the laws of any jurisdiction), or infringement of any patent, copyright or other intellectual property right. unless expressly approved in writing by an authorized st representative, st products are not recommended, authorized or warranted for use in milita ry, air craft, space, life saving, or life sustaining applications, nor in products or systems where failure or malfunction may result in personal injury, death, or severe property or environmental damage. st products which are not specified as "automotive grade" may only be used in automotive applications at user?s own risk. resale of st products with provisions different from the statements and/or technical features set forth in this document shall immediately void any warranty granted by st for the st product or service described herein and shall not create or extend in any manner whatsoev er, any liability of st. st and the st logo are trademarks or registered trademarks of st in various countries. information in this document supersedes and replaces all information previously supplied. the st logo is a registered trademark of stmicroelectronics. all other names are the property of their respective owners. ? 2011 stmicroelectronics - all rights reserved stmicroelectronics group of companies australia - belgium - brazil - canada - china - czech republic - finland - france - germany - hong kong - india - israel - ital y - japan - malaysia - malta - morocco - philippines - singapore - spain - sweden - switzerland - united kingdom - united states of america www.st.com
|
