HCPL-5301

Logic Output Optoisolators Overview

The HCPL-5301 is a high-reliability, Class H hermetically sealed logic output optocoupler manufactured by Broadcom Limited. It features an 8-pin ceramic DIP package with gold-plated or solder-dipped leads. The device provides one channel of isolation with a maximum continuous output current of 15 mA and a forward current of 20 mA. Key electrical parameters include a propagation delay of up to 750 ns, a current transfer ratio (CTR) exceeding 30% at 10 mA, and an insulation voltage of 1500 Vrms. Operating temperatures range from -55°C to +125°C.

Logic Output Optoisolators Feature Summary

• Hermetically sealed in a military-grade Class H 8-pin ceramic DIP package for high reliability
• Integrated Schottky clamping on the open collector output to prevent saturation
• High common-mode rejection capability of 10 kV/µs at 1000 V common mode voltage
• Optimized propagation delay characteristics to minimize system dead-time

Logic Output Optoisolators Applications

• Isolation for IGBT and MOSFET gate drive circuits
• Signal isolation in intelligent power modules (IPM)
• Industrial inverter control systems
• Brushless DC motor control interfaces

Logic Output Optoisolators Procurement Notes

Verify the specific suffix code to confirm the lead finish and mounting style, as variants exist for through-hole and surface-mount configurations. Ensure compliance with MIL-PRF-38534 standards if military-grade qualification is required. Confirm RoHS status separately, as some heritage versions may not be compliant. Validate that the ceramic DIP package meets thermal and mechanical requirements for the target application environment.

Logic Output Optoisolators Selection Notes

Select this component when high reliability and hermetic sealing are critical for long-term operation in harsh environments. The integrated Schottky clamp eliminates the need for external components to prevent transistor saturation, simplifying gate drive design. Consider the 1500 Vrms isolation rating for applications requiring robust galvanic separation between control and power stages. Verify that the 15 mA output current capability matches the load requirements of the driven gate circuit.

Logic Output Optoisolators Part Context

The HCPL-5301 belongs to the HCPL-5301 series of logic output optocouplers designed for power module and gate drive interface applications. Manufactured under QML-38534 standards, it serves as a bridge between low-voltage control logic and high-power switching devices. The series is characterized by its ceramic construction and strict manufacturing controls to ensure consistent performance across extreme temperature ranges.

Logic Output Optoisolators Replacement Considerations

Direct replacements must match the 8-pin ceramic DIP form factor and hermetic sealing requirement. Variants such as HCPL-5301#100 or #200 offer different mounting styles but share similar electrical characteristics. Ensure any substitute maintains the 1500 Vrms isolation rating and compatible propagation delay specifications for gate drive timing.