ACPL-W611-500E

Overview

The ACPL-W611-500E is a high-speed logic output optoisolator from Broadcom Limited, featuring a single channel in a surface-mount SOIC-6 package. It integrates a GaAsP LED with an open-collector photodetector IC that includes Schottky clamping for enhanced performance. The device supports data rates up to 10MBd and offers a common-mode transient immunity of 10kV/µs. Electrical specifications include a maximum propagation delay of 75ns, a typical rise time of 24ns, and a fall time of 10ns. It operates within a temperature range of -40°C to +85°C and provides isolation voltages of 3750Vrms or 5000Vrms depending on the specific rating context.

Feature Summary

• Integrates a GaAsP light emitter with a high-gain photodetector IC for efficient signal transmission
• Features open-collector output with Schottky clamping to minimize storage time and improve switching speed
• Provides high common-mode transient immunity (CMTI) for reliable operation in noisy environments
• TTL-compatible logic output facilitates direct interfacing with digital systems

Applications

• Gate driving for power electronics such as IGBTs and MOSFETs
• Isolation of microprocessor and DSP systems
• Signal transmission across isolated boundaries in industrial control systems
• Communication interface isolation in data acquisition systems

Procurement Notes

Verify the exact isolation voltage rating (3750Vrms vs 5000Vrms) required for your safety standards, as datasheets may vary by revision. Confirm the suffix '500E' indicates tape-and-reel packaging if automated assembly is planned. Ensure the operating temperature range meets your application's thermal constraints. Cross-reference the pinout with the specific package variant to avoid soldering errors during integration.

Selection Notes

Select this component when high-speed digital isolation is required alongside robust noise immunity. The Schottky-clamped output makes it suitable for driving fast-switching power devices where minimal delay is critical. Compare CMTI ratings against other optocouplers if electromagnetic interference is a primary concern. Ensure the input current limits align with your driving circuit capabilities to maintain optimal LED efficiency without exceeding maximum ratings.

Part Context

This part belongs to the HCPL/ACPL series of high-speed optocouplers designed for demanding isolation applications. It represents an evolution in TTL-compatible optoisolators, focusing on speed and reliability. The series is widely used in power conversion and digital communication interfaces where galvanic isolation is mandatory. Broadcom continues to support this family for legacy and new designs requiring proven isolation technology.

Replacement Considerations

Direct substitutes include the ACPL-P611-500E and ACPL-W611 variants, which share similar functional characteristics. Verify pin compatibility and electrical parameters before swapping. Other high-speed logic output optocouplers from different manufacturers may require schematic adjustments due to differing pinouts or drive requirements.