INN4777C-H189-TL

AC DC Converters, Offline Switchers Overview

The INN4777C-H189-TL is an isolated AC/DC converter from the InnoSwitch4-QR series, utilizing PowiGaN technology. It integrates a Flyback controller, a GaN switch, and secondary-side detection into a single InSOP-24D package. The device supports a maximum output power of 220 W with an input voltage range of 85 VAC to 265 VAC. It operates at a switching frequency of 140 kHz and features a low operating supply current of 300 uA. The component functions within a temperature range of -40 C to +150 C.

AC DC Converters, Offline Switchers Feature Summary

• Integrates PowiGaN technology for high-efficiency power conversion
• Combines primary-side control, GaN switch, and secondary-side sensing in one IC
• Includes internal FluxLink feedback for precise regulation without optocouplers

AC DC Converters, Offline Switchers Applications

• High-power adapter designs
• Industrial power supplies
• Battery charging systems

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix H189 against official Power Integrations documentation to confirm pinout and electrical characteristics. Confirm the InSOP-24D package type matches your PCB layout requirements. Ensure compliance with RoHS standards and check for any regional distribution restrictions before finalizing procurement plans.

AC DC Converters, Offline Switchers Selection Notes

Select this component for applications requiring high power density and efficiency in the 220 W range. The integrated GaN switch reduces external component count and thermal management needs. Verify that the 140 kHz switching frequency aligns with your electromagnetic interference constraints and transformer design capabilities.

AC DC Converters, Offline Switchers Part Context

This part belongs to the InnoSwitch4-QR family, designed for quasi-resonant flyback converters. It represents an evolution in integrated power management, combining advanced semiconductor materials with sophisticated control logic to simplify the design of robust and efficient AC/DC power stages.

AC DC Converters, Offline Switchers Replacement Considerations

Consult official cross-reference lists for verified substitutes. Ensure any replacement maintains the same InSOP-24D footprint and compatible electrical ratings.