ACPL-312U-300E

Overview

The ACPL-312U-300E is a single-channel optical gate driver isolator manufactured by Broadcom Limited. It features an open-collector logic output and operates with a DC input type. The device provides high-voltage isolation of 3750 Vrms, ensuring robust signal transmission in electrically noisy environments. It supports a maximum forward current of 20 mA and has a typical rise and fall time of 0.1 µs. The component is housed in an 8-pin DIP Gull Wing surface-mount package, suitable for automated assembly processes.

Feature Summary

• Integrated 2.5A gate driver capability for direct control of power switches
• High common-mode transient immunity of 25kV/µs for reliable operation in high-dv/dt environments
• Automotive-grade qualification compliant with AEC-Q100 standards
• Utilizes R²Coupler technology to minimize propagation delay skew

Applications

• Gate drive isolation for IGBTs and MOSFETs in motor drives
• Isolation interfaces in industrial inverters and converters
• Power supply control circuits requiring high voltage separation
• Automotive power electronics and battery management systems

Procurement Notes

Verify the specific suffix '300E' confirms RoHS compliance and lead-free status as per Broadcom's current environmental declarations. Confirm the package variant matches the required 8-pin DIP Gull Wing footprint for PCB layout compatibility. Ensure the operating temperature range of -40°C to +125°C meets the thermal requirements of the target application environment before finalizing procurement orders.

Selection Notes

Select this component when high-speed switching and high common-mode noise immunity are critical. The integrated gate driver output simplifies design by eliminating external pull-up resistors and level-shifting circuits. Consider the AEC-Q100 qualification if the application targets automotive markets. Compare propagation delays against system timing requirements to ensure adequate dead-time control in bridge configurations.

Part Context

This part belongs to the ACPL-312 family of gate driver optocouplers from Broadcom. It is designed to replace older discrete isolation solutions by integrating the driver stage directly within the isolator package. The series emphasizes fast response times and high reliability for modern power electronic applications.

Replacement Considerations

Direct pin-to-pin replacements may include other HCPL-3120 variants or equivalent gate driver optocouplers from manufacturers like Texas Instruments or ON Semiconductor, provided they match the 3750 Vrms isolation and 2.5A drive current specifications.