HCPL-4731-520E

Transistor, Photovoltaic Output Optoisolators Overview

The HCPL-4731-520E is a dual-channel high-speed optocoupler manufactured by Broadcom Limited. It features photodarlington outputs and operates within an industrial temperature range of -40°C to +85°C. The device provides 3750 Vrms isolation voltage and supports data rates up to 100 kb/s. Key electrical parameters include a forward current of 10 mA, forward voltage of 1.2 V, reverse voltage of 2.5 V, output current of 60 mA, and power dissipation of 115 mW. The current transfer ratio is specified at 25000%. It is housed in an 8-pin PDIP Gull Wing package.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Dual-channel configuration with photodarlington outputs for high-gain signal transmission
• Low power consumption design suitable for energy-efficient applications
• High isolation voltage capability ensuring robust circuit protection
• Pin-compatible with standard HCPL-2731 devices for easy integration

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial automation control systems
• Power supply feedback loops
• Signal isolation in noisy environments

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix '520E' against official Broadcom documentation to confirm packaging and tape-and-reel specifications. Ensure the component meets RoHS compliance requirements for your region. Cross-reference the datasheet revision date to validate parameter accuracy before procurement.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when dual-channel isolation with high current transfer ratio is required. It serves as a drop-in replacement for HCPL-2731 in existing designs. Consider the 100 kb/s data rate limit for signal integrity. Verify thermal management needs given the 115 mW power dissipation rating.

Transistor, Photovoltaic Output Optoisolators Part Context

The HCPL-4731 series belongs to Broadcom's family of very low power consumption, high-gain optocouplers. This specific model represents the dual-channel variant in an 8-pin DIP configuration. It is designed to offer pin compatibility with popular industry-standard devices while providing enhanced performance characteristics.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

The HCPL-4731 is explicitly documented as pin compatible with the HCPL-2731. Designers should verify that the substitute part matches the required isolation voltage and output type specifications.