HCPL-4731#320

Transistor, Photovoltaic Output Optoisolators Overview

The HCPL-4731#320 is a high-speed, single-channel optocoupler manufactured by Broadcom Limited. It integrates an AlGaAs infrared LED emitter with a monolithic silicon photodetecting integrated circuit to provide electrical isolation between input and output circuits. The device features a logic gate output configuration, designed for applications requiring fast signal transmission across isolated boundaries. Key electrical characteristics include a high common-mode transient immunity and a propagation delay suitable for digital communication interfaces. The component is housed in a standard 8-pin DIP package, facilitating easy integration into printed circuit boards.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• High-speed data transmission capability via integrated photodetector IC
• Logic gate output configuration for direct interface with digital systems
• Robust electrical isolation between input LED and output detector

Transistor, Photovoltaic Output Optoisolators Applications

• Digital communication interfaces requiring galvanic isolation
• Microprocessor system isolation for noise immunity
• Signal transmission in industrial control environments

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix #320 against official Broadcom documentation to confirm tape-and-reel packaging specifications. Ensure compatibility with existing PCB footprints and thermal management requirements. Cross-reference datasheet revisions to confirm pinout consistency and electrical parameter tolerances before finalizing procurement orders.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when high-speed isolation is required for single-channel digital signals. Evaluate the propagation delay and common-mode rejection ratio against system timing constraints. Confirm that the logic gate output type matches the receiving circuit's input requirements without additional buffering.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to Broadcom's HCPL-47xx series of high-speed optocouplers. The series is characterized by the use of AlGaAs LEDs and monolithic photodetectors to achieve superior speed compared to standard phototransistor-based isolators. The HCPL-4731 variant specifically offers a gated output structure.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Consult official Broadcom substitution guides for verified equivalents. Generic replacements may differ in propagation delay or isolation voltage ratings. Verify pinout compatibility and electrical parameters before substituting.