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| MCA230/231/255 PHOTODARLINGTON OPTOCOUPLER FEATURES * CTR Minimum MCA230/255, 100% MCA231, 200% * Isolation Test Voltage, 5300 VACRMS * Coupling Capacitance, 0.5 pF * Fast Rise Time, 10 s * Fast Fall Time, 35 s * Underwriters Lab File #E52744 * VDE #0884 Available with Option 1 DESCRIPTION The MCA230/231/255 are industry standard optocouplers, consisting of a Gallium Arsenide infrared LED and a silicon phototdarlington. These optocouplers are constructed with a high voltage insulation, double molded packaging process which offers 7.5 KV withstand test capability. Maximum Ratings Emitter Reverse Voltage .................................................6 V Continuous Forward Current ........................ 60 mA Power Dissipation at 25C..........................135 mW Derate Linearly from 25C ......................1.8 mW/C Detector Collector-Emitter Breakdown Voltage MCA230/231 .................................................30 V MCA255 ........................................................55 V Emitter-Collector Breakdown Voltage ................7 V Collector-Base Breakdown Voltage MCA230/231 .................................................30 V MCA255 ........................................................55 V Power Dissipation at 25C..........................210 mW Derate Linearly from 25C ......................2.8 mW/C Package Total Package Dissipation at 25C (LED plus Detector) ................................260 mW Derate Linearly from 25C ......................3.5 mW/C Storage Temperature .................. -55C to +150C Operating Temperature .............. -55C to +100C Lead Soldering Time at 260C .................... 10 sec. Isolation Test Voltage ........................5300 VACRMS Isolation Resistance VIO=500 V, TA=25C..................................1012 VIO=500 V, TA=100C................................ 1011 Characteristics (TA=25C) Symbol Emitter Forward Voltage Reverse Current Junction Capacitance Detector BVCEO MCA230/231 MCA255 BVECO BVCBO MCA230/231 MCA55 ICEO Package VCEsat 0.8 1.0 1.0 1.0 1.2 V V V V V ICE=2 mA, IF=16 mA IC=IF=50 mA IC=2 mA, IF=1 mA IC=10 mA, IF=5 mA IC=50 mA, IF=10 mA 30 30 7 30 55 100 V V V V V nA IC=100 A, IF=0 mA IC=100 A, IF=0 mA IE=10 A, IF=0 mA IC=10 A, IF=0 mA IC=10 A, IF=0 mA VCE=10 V, IF=0 mA VF IR CJ 50 1.1 1.5 10 V A pF IF=50 mA VR=3 V VR=3 V Min. Typ. Max. Unit Condition Dimensions in inches (mm) Pin One ID. 3 .248 (6.30) .256 (6.50) 4 5 6 2 1 Anode 1 Cathode 2 NC 3 6 Base 5 Collector 4 Emitter .335 (8.50) .343 (8.70) .039 (1.00) min. 4 typ. .018 (0.45) .022 (0.55) .300 (7.62) typ. .130 (3.30) .150 (3.81) 18 typ. .020 (.051) min. .031 (0.80) .035 (0.90) .100 (2.54) typ. .010 (.25) .014 (.35) .300 (7.62) .347 (8.82) .110 (2.79) .150 (3.81) DC Current Transfer Ratio MCA230/255 MCA231 Capacitance Input to Output Switching Times CTR CTR CIO ton toff 100 200 0.5 10 35 % % pF s s VCE=5 V, IF=10 mA VCE=5 V, IF=1 mA RL=100 VCE=10 V 5-1 Figure 1. Forward voltage versus forward current 1.4 VF - Forward Voltage - V Figure 5. Non-saturated and saturated HFE versus base current HFE - Forward Transfer Gain 10000 8000 6000 4000 2000 0 .01 Vce = 1 V Ta = 25C 1.3 1.2 1.1 1.0 0.9 0.8 0.7 .1 Ta = -55C Ta = 25C Vce = 5 V Ta = 85C 1 10 IF - Forward Current - mA 100 .1 1 10 100 Ib - Base Current - A Figure 2. Normalized non-saturated and saturated CTRce at TA = 25C versus LED current NCTRce - Normalized CTR Figure 6. Low to high propagation delay versus collector load resistance and LED current tpLH - Low/High Propagation Delay - s 1.2 1.0 0.8 0.6 0.4 0.2 Normalized to: Vce = 5 V IF = 10 mA Ta = 25 C Vce = 5 V 80 Ta = 25C, Vcc = 5V Vth = 1.5 V 60 40 1K 220 470 20 100 0 0 5 10 15 IF - LED Current - mA 20 Vce =1V 0.0 .1 1 10 100 IF - LED Current - mA 1000 Figure 3. Normalized non-saturated and saturated collector-emitter current versus LED current 10 Normalized to: Ta = 25C IF = 10 mA 1 Vce = 5 V .1 .01 .001 .1 Vce = 5 V Figure 7. High to low propagation delay versus collector load resistance and LED current 20 tpHL - High/Low Propagation delay - s NIce - Normalized Ice 1K 15 Vce = 1V Ta = 25C Vcc = 5 V Vth = 1.5 V 10 5 0 0 5 10 15 IF - LED Current - mA 20 100 1 10 IF - LED Current - mA 100 Figure 4. Normalized collector-base photocurrent versus LED current 10 NIcb - Normalized Icb Figure 8. Switching timing waveform and schematic IF VCC=5 V F=10 KHz, DF=50% 1 .1 .01 .001 .1 Normalized to: Ta = 25C Vcb = 3.5 V IF = 10 mA VO tR tD tPLH VTH=1.5 V tF RL VO IF=10 mA 1 10 IF - LED Current - mA 100 tPHL tS MCA230/231/255 5-2 |
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