ACFL-3161-500E

Overview

The ACFL-3161-500E is a single-channel gate drive optocoupler featuring a 10 A peak output current and rail-to-rail outputs. It utilizes an SO-12 package with a 600 V CTI mold compound, providing high insulation voltage in a compact form factor. The device offers a maximum propagation delay of 95 ns and a minimum common mode transient immunity (CMTI) of 100 kV/μs at V_CM = 1000 V. Operating specifications include a supply voltage range of 15 V to 30 V, a maximum supply current of 4.0 mA, and an industrial temperature range from -40°C to 125°C.

Feature Summary

• High peak output current capability of 10 A for direct IGBT and SiC/GaN MOSFET driving
• Robust noise immunity with CMTI exceeding 100 kV/μs to prevent false triggering
• Compact SO-12 package design with 600 V CTI mold compound for reduced creepage requirements
• Integrated UVLO protection referenced to the negative power supply

Applications

• IGBT and SiC gate drivers
• AC and brushless DC motor drives
• Industrial inverters
• Switched-mode power supplies

Procurement Notes

Verify component authenticity through authorized Broadcom channels or certified distributors. Confirm that the part number suffix matches the specific tape and reel configuration required for automated assembly processes. Ensure compliance with RoHS directives and relevant safety certifications such as UL and CSA before integration into final equipment designs.

Selection Notes

Select this component when high-speed switching and strong noise rejection are critical for power stage isolation. The 10 A drive strength supports wide-bandgap devices like SiC MOSFETs. The SO-12 package is suitable for space-constrained layouts where high insulation voltage is needed without excessive board area consumption compared to traditional DIP packages.

Part Context

This device belongs to the R²Coupler family, designed for high-performance isolation applications. It replaces older HCPL-316J variants by offering higher drive current and superior noise immunity within a smaller footprint. The series targets modern industrial and automotive power electronics requiring reliable signal transmission across high-voltage barriers.

Replacement Considerations

The HCPL-316J-500E serves as a functional predecessor but provides lower drive current (2.5 A) and inferior noise immunity. Direct substitution requires verifying PCB layout compatibility due to package differences between SOIC-16 and SO-12.