ACPL-P456-520E

Overview

The ACPL-P456-520E is a single-channel logic output optocoupler manufactured by Broadcom Limited. It features an integrated photo IC with open collector and Schottky clamped outputs, designed for high-speed digital isolation. The device supports a data rate of 1 MBd and provides an insulation voltage of 3750 Vrms. Key electrical parameters include a maximum DC forward current (If) of 25 mA, a forward voltage (Vf) of 1.5 V, and a reverse voltage (Vr) of 5 V. The unit operates within a temperature range of -40°C to +100°C and is housed in a surface-mount SO-6 package.

Feature Summary

• Integrates a phototransistor with Schottky clamping to enhance switching speed and reduce storage time.
• Provides robust galvanic isolation with a 3750 Vrms insulation rating for noise immunity.
• Features a compact SO-6 surface mount package suitable for space-constrained designs.

Applications

• Gate drive interface circuits for intelligent power modules
• Digital signal isolation in industrial automation systems
• Power supply feedback loops requiring high common-mode rejection

Procurement Notes

Verify component authenticity through authorized distributors due to limited availability status. Confirm RoHS compliance details and manufacturing date codes prior to order placement. Ensure the specific suffix matches design requirements as variants may differ in packaging or testing standards. Cross-reference datasheet revisions to guarantee parameter consistency with current system specifications.

Selection Notes

Select this component when a 1 MBd data rate and 3750 Vrms isolation are required for gate drive applications. The integrated Schottky clamp offers faster switching than standard phototransistors without the complexity of dedicated gate driver ICs. Consider the SO-6 footprint for PCB layout constraints and verify that the 15 mA continuous output current meets load requirements.

Part Context

This part belongs to Broadcom's ACPL-P4xx series of high-performance optocouplers. It is specifically engineered for power electronics interfaces, offering superior common-mode transient immunity compared to general-purpose isolators. The series targets applications demanding reliable signal transmission across high-voltage potential differences in noisy environments.

Replacement Considerations

Direct substitutes include other Broadcom ACPL-P45x series variants with compatible pinouts and electrical characteristics. Verify that alternative parts maintain the same Schottky-clamped output structure and 3750 Vrms insulation rating to ensure functional equivalence in gate drive circuits.