HCPL0701

Transistor, Photovoltaic Output Optoisolators Overview

The HCPL0701 is a single-channel high-speed optocoupler featuring an AlGaAs LED optically coupled to a split Darlington photodetector in an 8-pin SOIC package. It offers a data rate of 100 kb/s and an isolation voltage of 2500 Vrms. The device supports a maximum forward current of 20 mA with a typical forward voltage of 1.25 V. Output characteristics include a rise time of 25 µs, fall time of 60 µs, and output current of 60 mA. The current transfer ratio reaches up to 5000%, with a reverse voltage rating of 5 V and power dissipation of 100 mW.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Split Darlington configuration separates input photodiode and first-stage gain from the output transistor for lower saturation voltage and higher speed.
• High current transfer ratio capability allows operation with low input currents while maintaining strong output drive.
• CMOS logic compatibility ensures reliable interfacing with standard digital logic families.

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial process control signal isolation
• Logic interface between microprocessors and peripheral devices
• Power supply feedback circuit isolation

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific ordering suffix to confirm packaging format, as tape-and-reel variants like HCPL0701R2 differ in shipping configuration from tube-packaged units. Confirm RoHS compliance status and moisture sensitivity level (MSL) requirements for surface-mount assembly processes. Ensure the selected variant matches the required lead frame material and thermal performance specifications for the target application environment.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when high current transfer ratio and moderate speed are required for galvanic isolation. The split Darlington architecture provides superior performance compared to conventional phototransistor outputs. Consider the 8-pin SOIC footprint for density constraints. Evaluate the 100 kb/s data rate against system timing requirements to ensure adequate signal integrity without excessive propagation delay.

Transistor, Photovoltaic Output Optoisolators Part Context

The HCPL0701 belongs to a family of low-input-current, high-gain optocouplers that includes the dual-channel HCPL0730 and HCPL0731. These devices utilize identical internal split Darlington technology housed in compact packages to optimize mounting density. The series is designed to replace older discrete transistor solutions by providing integrated isolation with enhanced gain and speed characteristics in a standardized surface-mount form factor.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Direct functional equivalents within the same product line include the HCPL0730 and HCPL0731 for dual-channel applications. Verify pinout compatibility and package dimensions when substituting with other manufacturers' split Darlington optocouplers. Ensure isolation voltage ratings and current transfer ratio ranges meet or exceed the original design specifications.