HCPL-273L

Transistor, Photovoltaic Output Optoisolators Overview

The HCPL-273L is a high-gain, dual-channel optocoupler featuring an integrated photodetector. It supports 3.3V and 5V dual supply voltages with low input current requirements of 0.5 mA. The device offers a data rate of 100 kb/s and an isolation voltage of 3750 Vrms. Key electrical parameters include a forward current of 20 mA, output current of 60 mA, and a current transfer ratio of up to 1600%. It operates within a temperature range of 0°C to 70°C.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Dual supply voltage compatibility for 3.3V and 5V systems
• High current transfer ratio for signal amplification
• Low input current requirement reducing drive power
• LVTTL and LVCMOS logic compatibility

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial control systems requiring galvanic isolation
• Data communication interfaces
• Microcontroller I/O isolation
• Power supply feedback loops

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix (e.g., #500 or -500E) against the datasheet to confirm tape-and-reel packaging quantities and RoHS compliance status. Ensure the component matches the required operating temperature range and package type (PDIP-8) for your PCB layout. Confirm availability as some variants may be discontinued or have limited stock.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when high gain and low input current are critical for interfacing with LVTTL/LVCMOS logic. The dual-channel configuration allows for cost-effective isolation in multi-signal paths. Consider the 100 kb/s data rate limit for high-speed applications; faster alternatives may be needed for higher bandwidths.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to Broadcom's high-gain series of optocouplers designed for low-power digital isolation. It integrates a light-emitting diode with a high-gain photodetector to provide robust signal transmission across isolation barriers while maintaining compatibility with standard logic families.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Check for direct pin-compatible substitutes such as the HCPL-073L for single-channel needs or other HCPL-27x series variants. Verify that replacement parts maintain the same 3750 Vrms isolation rating and current transfer ratio specifications.