HCPL-4503-020E

Transistor, Photovoltaic Output Optoisolators Overview

The HCPL-4503-020E is a single-channel high-speed optocoupler from the Broadcom HCPL series, housed in an 8-pin PDIP package. It features a diode-transistor architecture with separate photodiode bias and output-transistor collector connections to minimize base-collector capacitance. Key electrical parameters include a data rate of 1 Mb/s, isolation voltage of 5000 Vrms, and maximum forward current of 16 mA. The device supports a collector current of 8 mA, power dissipation of 100 mW, and operates within a temperature range of 0°C to +70°C.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• High-speed operation achieved through integrated photodetector and separate bias connections that reduce internal capacitance
• Provides robust electrical insulation between input LED and output transistor circuits
• Compatible with standard logic interfaces via open-collector phototransistor output

Transistor, Photovoltaic Output Optoisolators Applications

• Intelligent Power Module (IPM) gate drive interfacing
• Isolated communication channels in industrial control systems
• Signal transmission across ground potential differences in switching power supplies

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix against official Broadcom documentation to confirm compliance status and pinout configuration. Ensure the selected variant matches the required isolation voltage rating and operating temperature range for the target application environment. Cross-reference datasheet revisions to confirm material composition and regulatory certifications prior to final procurement decisions.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when high-speed signal isolation is required alongside moderate current drive capabilities. The separate bias connection distinguishes it from conventional phototransistor couplers by offering superior speed performance. Evaluate thermal management requirements based on the 100 mW power dissipation limit and ensure the PCB layout accommodates the PDIP-8 footprint for adequate creepage distances.

Transistor, Photovoltaic Output Optoisolators Part Context

This device belongs to the HCPL family of single-channel high-speed optocouplers manufactured by Broadcom Limited. The series utilizes advanced diode-transistor technology to achieve bandwidths significantly higher than standard phototransistor isolators. The HCPL-4503-020E specifically denotes the lead-free, RoHS-compliant version packaged in a standard 8-pin DIP format suitable for through-hole mounting.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

HCPL-4503-320E

Transistor, Photovoltaic Output Optoisolators FAQ

How does the HCPL-4503-020E achieve higher speed compared to standard optocouplers?

It uses a separate connection for the photodiode bias and the output-transistor collector, which reduces base-collector capacitance and increases speed up to a hundred times that of a conventional phototransistor coupler.

What is the maximum isolation voltage rating for this component?

The HCPL-4503-020E provides an isolation voltage of 5000 Vrms between the input and output circuits.