ACPL-P343-500E

Overview

The ACPL-P343-500E is a single-channel MOSFET output optocoupler from Broadcom’s ACPL series, designed for gate drive applications. It features a push-pull output stage capable of delivering up to 4A peak current. The device provides 3750 Vrms isolation voltage and operates within a temperature range of -40°C to +105°C. Key electrical parameters include a typical rise time of 43 ns and fall time of 40 ns. It accepts an input forward current of up to 25 mA with a maximum forward voltage of 1.95 V. The component is housed in a 6-pin SO stretched package.

Feature Summary

• Integrated push-pull output stage for high-speed gate driving
• High isolation voltage rating for safety compliance
• Optimized switching speed for efficient power conversion
• Wide operating temperature range for industrial reliability

Applications

• Variable-speed drives
• Electric vehicles
• Induction cookers
• Solar inverters

Procurement Notes

Verify the specific ordering suffix (e.g., 500E) against official Broadcom documentation to confirm packaging and tape/reel specifications. Ensure compatibility with standard surface mount assembly processes. Cross-reference the datasheet version to confirm regulatory certifications such as UL 1577 or IEC standards required for your specific design implementation.

Selection Notes

Select this component when high-speed isolation is required for driving power MOSFETs or IGBTs. The 4A peak output current supports direct gate driving without external buffers. Consider the 3750 Vrms isolation barrier for primary-to-secondary separation in high-voltage circuits. Evaluate thermal management requirements given the 105°C maximum junction temperature limit.

Part Context

This part belongs to the Broadcom ACPL series of isolators specifically engineered for gate driver applications. It replaces older discrete isolation solutions by integrating the LED and MOSFET output into a single compact package. The series is widely used in modern power electronics where size, speed, and isolation integrity are critical constraints.

Replacement Considerations

Direct replacement parts may include ACPL-P343-000E or ACPL-P343-500E variants depending on packaging requirements. Verify pinout compatibility and electrical parameter equivalence before substitution. Consult Broadcom's obsolescence notices for alternative recommendations if this specific part number is discontinued.