HCPL-4503-300E

Transistor, Photovoltaic Output Optoisolators Overview

The HCPL-4503-300E is a single-channel, high-speed logic IC output optocoupler manufactured by Broadcom Limited. It features an insulating layer between an LED and an integrated photodetector to provide electrical isolation. The device offers a nominal data rate of 1 MBps and a maximum isolation voltage of 3750 Vrms. It utilizes separate connections for the photodiode bias and output-transistor collector to reduce base-collector capacitance, significantly increasing speed compared to conventional phototransistor couplers. The component is available in an 8-pin surface mount DIP package.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• High-speed operation achieved through reduced base-collector capacitance via separate photodiode bias and output-transistor collector connections
• CMOS compatible logic output with open collector configuration
• Provides robust electrical insulation between input and output channels

Transistor, Photovoltaic Output Optoisolators Applications

• High-speed digital signal transmission across isolated boundaries
• Interface circuits requiring CMOS compatibility
• Applications demanding rapid switching speeds within single-channel isolation requirements

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix designation when ordering, as it indicates packaging or compliance variations such as lead-free status. Confirm that the required isolation voltage rating of 3750 Vrms meets the safety standards of the target application. Ensure the surface-mount DIP-8 package dimensions are compatible with the printed circuit board layout. Check for RoHS 6 fully compliant options if environmental regulations require them.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when a single channel with high-speed performance up to 1 MBps is required. It is suitable for designs needing CMOS-compatible outputs and open collector topology. Consider the 3750 Vrms isolation limit against the system's voltage requirements. Evaluate the surface-mount package constraints against available PCB space. Compare against other HCPL series variants if different pin counts or isolation levels are needed.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the HCPL series of single-channel, high-speed optocouplers from Broadcom Limited. These devices utilize diode-transistor technology to achieve superior speed compared to standard phototransistor optocouplers. The series is designed for applications requiring reliable galvanic isolation with fast data transmission capabilities in compact packages.