Product Bulletin 3N243, 3N243TX September 1996 High Reliability Optically Coupled Isolators Types 3N243, 3N244, 3N245, 3N243TX, 3N244TX, 3N245TX Features Absolute Maximum Ratings (TA = 25o C unless otherwise noted) * TX versions processed to Optek's Input-to-Output Isolation Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.00 kVDC(1) Storage Temperature Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65o C to +150o C Operating Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55o C to +125o C Lead Soldering Temperature [1/16 inch (1.6 mm) from case for 5 sec. with soldering iron] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240o C(2) military screening program patterned after MIL-PRF-19500 * TO-72 hermetically sealed package * 1 kVDC electrical isolation Description Each device in the series is a high reliability design optically coupled isolator consisting of an infrared emitting diode and an NPN silicon phototransistor mounted in a hermetically sealed TO-72 package. Typical screening and lot acceptance tests are provided on page13-4. Replaces 3N243R, 3N244R, 3N245R Optek Technology, Inc. Input Diode Forward DC Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 mA Reverse Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.0 V Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 mW(3) Output Phototransistor Continuous Collector Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 mA Collector-Emitter Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 V Emitter-Collector Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.0 V Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 mW(4) Notes: (1) Measured with input leads shorted together and output leads shorted together. (2) RMA flux is recommended. Duration can be extended to 10 sec. max. when flow soldering. (3) Derate linearly 0.60 mW/o C above 65o C. (4) Derate linearly 2.0 mW/o C above 25o C. (5) The input waveform is supplied by a generator with the following characteristics: ZOUT = 50 , tr 15 ns, duty cycle 1%, pulse width 100 ms. 1215 W. Crosby Road Carrollton, Texas 75006 13-14 (972)323-2200 Fax (972)323-2396 Types 3N243, 3N244, 3N245 3N243TX, 3N244TX, 3N245TX Electrical Characteristics (TA = 25o C unless otherwise noted) 3N243TX Symbol Parameter 3N244TX 3N245TX Min Typ Max Min Typ Max Min Typ Max Units Test Conditions Input Diode Forward Voltage VF IR 0.80 1.30 0.80 1.30 0.80 1.30 V IF = 10.0 mA 1.00 1.50 1.00 1.50 1.00 1.50 V IF = 10.0 mA, TA = -55o C 0.70 1.20 0.70 1.20 0.70 1.20 V IF = 10.0 mA, TA = 100o C 100 100 100 A VR = 2.0 V Reverse Current Output Phototransistor V(BR)CEO Collector-Emitter Breakdown Voltage 30 30 30 V V(BR)ECO Emitter-Collector Breakdown Voltage 5.0 5.0 5.0 V IE = 100 A nA A VCE = 10.0 V VCE = 10.0 V, TA = 100o C ICEO Collector Dark Current 100 100 100 100 100 100 IC = 1.00 mA Coupled On-State Collector Current IC(on) VCE(SAT) Collector-Emitter Saturation Voltage 1.50 3.00 6.00 mA IF = 10.0 mA, VCE = 10.0 V 0.30 0.80 1.50 mA IF = 3.0 mA, VCE = 10.0 V 0.50 1.00 1.50 mA IF = 10.0 mA, VCE = 10.0 V, TA = -55o C 0.50 1.00 1.50 mA IF = 10.0 mA, VCE = 10.0 V, TA = 100o C 0.30 V IF = 20 mA, IC = 1.50 mA V IF = 20 mA, IC = 3.0 mA 0.30 V IF = 20 mA, IC = 6.0 mA VIO = 1.00 kVDC(1) 0.30 IIO Leakage Input-to-Output 100 100 100 nA CIO Capacitance Input-to-Output 5.0 5.0 5.0 pF tr Output Rise Time 10.0 10.0 10.0 s tf Output Fall Time 10.0 10.0 10.0 s VIO = 0 V, f = 1.00 MHz(1) VCC = 10.0 V, IF = 10.0 mA,(5) RL = 100 Optek reserves the right to make changes at any time in order to improve design and to supply the best product possible. Optek Technology, Inc. 1215 W. Crosby Road Carrollton, Texas 75006 (214)323-2200 Fax (214)323-2396 13-15