INN4676F-H342-TL

AC DC Converters, Offline Switchers Overview

The INN4676F-H342-TL is a digitally controllable off-line CV/CC flyback switcher IC from the InnoSwitch4-Pro series. It integrates a 750 V PowiGaN primary switch, active clamp drive, and synchronous rectification. The device supports standalone quasi-resonant mode operation or pairing with ClampZero ICs for zero-voltage switching. It features an I²C interface for digital control, internal FluxLink feedback, and a 3.6 V supply for external microcontrollers. Packaged in InsOP-T28D.

AC DC Converters, Offline Switchers Feature Summary

• Integrates 750 V PowiGaN technology with active clamp drive and synchronous rectification
• Enables zero-voltage switching via ClampZero IC pairing or standalone quasi-resonant mode
• Provides full digital control through an integrated I²C interface
• Includes internal FluxLink feedback compliant with HIPOT insulation requirements

AC DC Converters, Offline Switchers Applications

• High-efficiency AC/DC power adapters
• Digitally controlled USB PD chargers
• Compact power supplies requiring thermal management reduction

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix H342 against official Power Integrations documentation to confirm exact electrical characteristics and pinout compatibility. Confirm that the TL designation corresponds to the required reel packaging format for your assembly line. Ensure design compliance with the manufacturer's recommended application circuits for optimal performance.

AC DC Converters, Offline Switchers Selection Notes

Select this component when designing high-density power supplies requiring digital programmability and advanced efficiency optimization. The integration of PowiGaN and active clamp drive reduces passive component size. Verify system requirements for I²C communication and ensure the input voltage range matches the specified 85-265 VAC operational window.

AC DC Converters, Offline Switchers Part Context

This part belongs to the InnoSwitch4-Pro family, designed to minimize power adapter dimensions through high-frequency operation and high integration. The PowiGan trademark indicates the use of proprietary gallium nitride technology for improved switching performance and reduced thermal output compared to traditional silicon solutions.

AC DC Converters, Offline Switchers Replacement Considerations

Consult official substitution guides for compatible devices within the InnoSwitch4-Pro series. Verify functional equivalence regarding digital control interfaces and voltage ratings before implementation.