ACFL-3161T-500E

Overview

The ACFL-3161T-500E is a single-channel gate drive optocoupler from the R2Coupler series, manufactured by Broadcom Limited. It features a compact SO-12 surface-mount package designed for high-voltage industrial applications. The device provides an isolation voltage of 5 kVrms and supports a wide operating supply voltage range of 15 V to 30 V. Key electrical parameters include a maximum propagation delay of 95 ns, a minimum common-mode transient immunity (CMTI) of 100 kV/μs at VCM = 1000 V, and a peak output current capability of 10 A. It operates within an industrial temperature range of -40°C to +125°C.

Feature Summary

• High-output driving capability with 10 A peak current for direct SiC MOSFET or IGBT gate drive
• Robust noise immunity featuring 100 kV/μs CMTI and low input impedance LED design
• Integrated hysteresis-based undervoltage lockout (UVLO) protection for reliable operation
• Compact SO-12 package with 8.5 mm creepage distance and 8.3 mm clearance

Applications

• Automotive drivetrain DC-DC converters
• EV and PHEV onboard chargers
• Isolated MOSFET/IGBT gate drivers for automotive inverters and HVAC systems

Procurement Notes

Verify that the specific part number suffix matches the required tape-and-reel packaging configuration. Confirm compliance with AEC-Q100 Grade 1 requirements if automotive qualification is mandatory for the target application. Ensure the selected variant aligns with the necessary safety certifications, including UL 1577 and IEC standards, for the intended insulation system design.

Selection Notes

Select this component when high-speed switching with minimal distortion is critical for power electronics efficiency. The 95 ns maximum propagation delay and 35 ns dead-time distortion support high-frequency operations. Consider the 10 A peak drive current for robust gate charging in demanding environments. The wide supply voltage range accommodates various driver power architectures without requiring additional level-shifting circuitry.

Part Context

This device belongs to the ACFL series of gate drive optocouplers, specifically engineered for isolated power switching applications. It utilizes Broadcom's R2Coupler technology to deliver high reliability and noise immunity. The product line addresses the growing demand for efficient power conversion in electric vehicles and renewable energy systems, offering a compact solution for space-constrained designs.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.