ACPL-W70L-520E

Overview

The ACPL-W70L-520E is a single-channel high-speed digital optocoupler manufactured by Broadcom Limited. It features a push-pull totem pole output configuration designed for robust signal transmission across isolation barriers. The device supports data rates up to 15 MBd and provides an isolation voltage of 5000 Vrms. Key electrical parameters include a typical rise and fall time of 3.5 ns, a maximum forward current of 6 mA, and a forward voltage of 1.5 V. It offers a common mode transient immunity (CMTI) of 10 kV/µs and is housed in a compact 6-pin SSOIC package.

Feature Summary

• High-speed digital signal transmission with 15 MBd data rate capability
• Push-pull totem pole output stage for strong drive performance
• High common mode transient immunity of 10 kV/µs for noise rejection
• Integrated design combining LED input and logic output on a single channel

Applications

• Industrial automation control systems requiring galvanic isolation
• Power supply feedback loops and gate driver interfaces
• Data communication links with high noise environments
• Microcontroller peripheral isolation in embedded systems

Procurement Notes

Verify the specific ordering suffix matches the required output type and packaging. Confirm that the 6SSO package dimensions align with the target PCB footprint. Ensure the operating temperature range meets the application requirements. Check for RoHS compliance status if restricted substances are a concern. Validate the CMTI rating against the system's noise levels.

Selection Notes

Select this component when high-speed digital isolation is required with a push-pull output. Compare the 15 MBd speed against slower transistor-output alternatives if bandwidth is critical. Consider the 5000 Vrms isolation barrier for safety-critical applications. Evaluate the 10 kV/µs CMTI for environments with rapid voltage transients. Ensure the 6 mA forward current fits within the driving circuit constraints.

Part Context

This part belongs to the ACPL-W70L series of high-speed CMOS optocouplers from Broadcom. The series includes variants with different output configurations and insulation ratings. It serves as a bridge between low-voltage logic circuits and higher-voltage industrial or power electronics domains. The W70L designation indicates specific speed and isolation characteristics within the broader portfolio.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify pinout compatibility and electrical specifications before considering any alternative components from other manufacturers.