ACPL-K342-500E

Overview

The ACPL-K342-500E is a single-channel logic output optocoupler designed for IGBT gate drive applications. It features an integrated active Miller clamp to prevent false triggering during high dv/dt events. The device provides a peak output current of 2.5 A and supports a continuous output current of 2 A. Key electrical parameters include a rise time of 22 ns, a fall time of 18 ns, and a maximum forward voltage of 1.55 V at 10 mA input. It offers 5000 Vrms isolation voltage and operates within a temperature range of -40°C to 105°C.

Feature Summary

• Integrated active Miller clamp functionality to suppress noise-induced false turn-on in high-speed switching environments.
• High peak output current capability of 2.5 A suitable for direct driving of IGBTs and MOSFETs.
• Rail-to-rail output stage design ensuring robust signal integrity across the operating temperature range.

Applications

• Insulated Gate Bipolar Transistor (IGBT) gate drive circuits
• Metal-Oxide-Semiconductor Field-Effect Transistor (MOSFET) gate drivers
• Industrial motor control systems requiring high dv/dt immunity

Procurement Notes

Verify the specific suffix '500E' to confirm the 5000 Vrms insulation rating and RoHS compliance status. Ensure the package matches the 8-SO stretched footprint requirements for your PCB layout. Cross-reference with official Broadcom datasheets to validate the active Miller clamp feature availability for this exact part number variant.

Selection Notes

Select this component when high-speed switching with strong noise immunity is required. The integrated Miller clamp eliminates the need for external snubber circuits in many designs. Compare propagation delay specifications against system timing constraints. Verify that the 2.5 A peak current meets the gate charge requirements of the target power devices.

Part Context

This device belongs to the ACPL-K342 series from Broadcom Limited, specialized for isolated gate driver applications. It shares functional similarities with the ACPL-H342 but differs in insulation voltage ratings. The series is engineered for industrial and automotive-grade reliability, focusing on durability under harsh electrical conditions.

Replacement Considerations

ACPL-K342-560E serves as a verified alternative within the same product family, offering identical functional characteristics and pinout compatibility.