Datasheet 4N25, 4N26, 4N27, 4N28 (Vishay) - 4

4N25, 4N26, 4N27, 4N28
Optocoupler, Phototransistor Output, Vishay Semiconductors with Base Connection 1.5 1.5 Normalized to: Normalized to: V = 10 V, I = 10 mA, T = 25 °C cb CE F A V = 9.3 V, I = 10 mA, T = 25 °C CB F A CTR V = 0.4 V CE(sat) CE 1.0 1.0 T = 85 °C A 0.5 0.5 - Normalized CTR cb 25 °C NCTR(SAT) 50 °C NCTR - Normalized CTR NCTR 70 °C NCTR 0.0 0.0 0.1 1 10 100 0.1 1 10 100 i4n25_05 I - LED Current (mA) F i4n25_08 I - LED Current (mA) F Fig. 5 - Normalized Non-Saturated and Saturated CTR vs. Fig. 8 - Normalized CTRcb vs. LED Current and Temperature LED Current 35 10 Normalized to: 30 I = 10 mA, T = 25 °C F A 25 50 °C 1 20 70 °C 15 25 °C 85 °C 0.1 10 Nib, T = - 20 °C A - Collector Current (mA) Nib, T = 20 °C A 5 I CE Normalized Photocurrent Nib, T = 50 °C A Nib, T = 70 °C A 0 0.01 0 10 20 30 40 50 60 0.1 1 10 100 i4n25_09 i4n25_06 I - LED Current (mA) I - LED Current (mA) F F Fig. 6 - Collector Emitter Current vs. Fig. 9 - Normalized Photocurrent vs. IF and Temperature Temperature and LED Current 105 1.2 70 °C 104 FE 1.0 103 25 °C 102 - 20 °C V = 10 V 0.8 CE 101 Normalized to: I = 20 µA, V = 10 V, B CE Typical 100 - Normalized h T = 25 °C A - Collector Emitter (nA) 0.6 FE 10- 1 I CEO Nh 10- 2 0.4 - 20 0 20 40 60 80 100 1 10 100 1000 i4n25_10 I i4n25_07 T - Ambient Temperature (°C) b - Base Current (µA) amb Fig. 7 - Collector Emitter Leakage Current vs. Temperature Fig. 10 - Normalized Non-Saturated hFE vs. Base Current and Temperature Document Number: 83725 For technical questions, contact: optocoupleranswers@vishay.com www.vishay.com Rev. 1.8, 07-Jan-10 135