Optocoupler/LED/nixie tube/photoelectric device

The HCPL-0700, HCPL-0701, HCPL-0730, and HCPL-0731 optocouplers consist of an AlGaAs LED optically coupled to a high-gain split Darlington photodetector in a compact 8-pin small-outline encapsulation. The HCPL-0730 and HCPL-0731 devices have two channels per encapsulation for optimal packing density. This split Darlington configuration separates the input photodiode and first-stage gain from the output transistor, allowing for lower output saturation voltage and higher operating speed than conventional Darlington phototransistor optocouplers. The combination of very low input current of 0.5mA and high current transfer ratio of 2000% makes this series ideal for MOS, CMOS, LSTTL and EIA RS232C input interfaces while ensuring output compatibility to CMOS and high fanout TTL requirements.

The MOC3071M, MOC3072M, and MOC3073M consist of a GaAs infrared light-emitting diode optically coupled to a non-zero-crossing silicon bidirectional switch (three-way device). These devices isolate low voltage logic from the 240 VAC line and provide random phase control of high current triacs or thyristors. These devices have enhanced static dv/dt capability to ensure stable switching performance for inductive loads.

The H11LXM series features a high-speed integrated circuit detector optically coupled to a gallium arsenide infrared light-emitting diode. The output incorporates a Schmitt trigger, providing hysteresis for noise immunity and pulse shaping. The detector circuit is optimized for operational simplicity and utilizes an open collector output for maximum application flexibility.