HCPL-T251#500

Isolators - Gate Drivers Overview

The HCPL-T251#500 is a single-channel logic output optocoupler designed for IGBT gate drive applications. It features a maximum continuous output current of 400 mA and an isolation voltage of 3750 Vrms. The device operates with a forward current of 12 mA and a forward voltage of 1.8 V, while supporting a reverse voltage of 5 V. Power dissipation is rated at 250 mW. It utilizes a DIP-8 through-hole package and provides open collector output configuration.

Isolators - Gate Drivers Feature Summary

• Provides high-voltage optical isolation for single-channel signal transmission
• Capable of driving IGBT gates with up to 400 mA output current
• Features open collector output configuration for flexible interfacing

Isolators - Gate Drivers Applications

• IGBT gate drive circuits
• High-voltage isolation interfaces
• Power supply control systems

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix #500 against the manufacturer's official datasheet to confirm tape-and-reel packaging requirements. Ensure compatibility with existing DIP-8 footprints and validate that the 3750 Vrms isolation rating meets the safety standards of the target application environment before finalizing procurement.

Isolators - Gate Drivers Selection Notes

Select this component when a dedicated logic-output optocoupler is required for direct IGBT driving without external pull-up resistors. The 400 mA sink capability distinguishes it from standard transistor-output couplers. Verify that the 12 mA forward current requirement aligns with the driving circuit's output capabilities and that the DIP-8 package fits the mechanical constraints.

Isolators - Gate Drivers Part Context

This part belongs to Broadcom's HCPL-T251 series of logic output optocouplers. It is manufactured by Broadcom Limited, formerly Avago Technologies. The series is engineered specifically for power electronics applications requiring robust galvanic isolation between low-voltage control logic and high-voltage power stages.

Isolators - Gate Drivers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Cross-reference with HCPL-3150 variants only if functional equivalence is verified via official datasheets.