ACPL-P345-500E

Overview

The ACPL-P345-500E is a single-channel logic output optocoupler featuring an integrated push-pull power output stage. It provides galvanic isolation between control circuits and high-power devices, delivering a maximum continuous output current of 1 A. The device utilizes an AlGaAs LED coupled to an integrated circuit, ensuring reliable signal transmission. Key electrical parameters include a rise time of 8 ns and a fall time of 8 ns. It operates with a forward voltage of 1.55 V at a forward current of 4 mA. The unit offers an insulation voltage of 3750 Vrms and is housed in a 6-pin SOIC surface-mount package.

Feature Summary

• Integrates an AlGaAs LED with an IC containing a power output stage for efficient gate driving
• Provides robust galvanic isolation suitable for separating control signals from power stages
• Features a push-pull output configuration capable of sourcing and sinking significant current

Applications

• Gate drive applications for IGBTs and MOSFETs
• Isolation of control signals in power electronics systems
• Driver circuits for GaN-based power devices

Procurement Notes

Verify the specific suffix '500E' to ensure compliance with RoHS standards and lead-free manufacturing requirements. Confirm that the 6-pin SOIC package matches the PCB footprint constraints. Check datasheet specifications for thermal dissipation limits under continuous operation conditions to ensure system reliability.

Selection Notes

Select this component when a single-channel driver with 1 A output capability is required. Consider the 3750 Vrms isolation rating for safety-critical interfaces. Evaluate the 8 ns switching speed against system frequency requirements. Ensure the input current range aligns with the driving logic levels available in the control circuit.

Part Context

This part belongs to the Broadcom ACPL-P345 series, which is designed for power isolation applications. The series includes variants optimized for different output currents and packaging options. The ACPL-P345-500E specifically targets applications requiring moderate current drive with fast switching speeds in a compact surface-mount form factor.

Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material.