HCPL-2731#520

Transistor, Photovoltaic Output Optoisolators Overview

The HCPL-2731#520 is a dual-channel high-speed optocoupler manufactured by Broadcom Limited. It features two independent channels, each comprising a GaAsP light-emitting diode optically coupled to an integrated photodetector with a Darlington output configuration. The device supports a data rate of 100 kb/s and provides an isolation voltage of 5000 Vrms. Key electrical parameters include a maximum forward current of 20 mA, a typical forward voltage of 1.4 V, and a maximum collector output current of 60 mA. The unit operates within a temperature range of -40°C to +85°C and is housed in an 8-pin PDIP Gull Wing package.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Dual-channel architecture with separate GaAsP LEDs and integrated high-gain photo detectors
• Darlington output stage providing high current transfer ratio for robust signal transmission
• High insulation voltage capability ensuring reliable galvanic isolation between input and output circuits

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial communication interfaces requiring galvanic isolation
• Data acquisition systems needing channel separation
• Power supply feedback loops for control circuit isolation

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix code against official Broadcom documentation to confirm pinout and packaging variations. Ensure compatibility with existing PCB footprints for the 8-pin DIP gull-wing configuration. Confirm that the required data rate and isolation voltage meet system specifications before procurement.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when dual-channel isolation is required within a single package footprint. The Darlington output offers higher gain compared to standard transistor outputs, suitable for driving loads directly. Consider the operating temperature range and power dissipation limits relative to the application environment.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the HCPL-2731 series of high-speed optocouplers from Broadcom. The series is designed for applications demanding fast switching speeds and reliable isolation. The #520 suffix typically denotes specific packaging or tape-and-reel configurations distinct from tube-packaged variants.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Check for direct substitutes such as HCPL-2731-500E or HCPL-2731-300E, noting differences in output type (Darlington vs. Photodiode) and isolation ratings. Verify pin compatibility and thermal characteristics before substituting.