INN4774C-H189-TL

AC DC Converters, Offline Switchers Overview

The INN4774C-H189-TL is an AC/DC converter from the InnoSwitch4-QR series, utilizing GaN technology. It features a Flyback topology with a maximum output power of 170 W at 380 VDC. The device operates within an input voltage range of 85 VAC to 265 VAC and switches at 140 kHz. It draws 300 uA in working power mode. Packaged in an InSOP-24D SMD/SMT format on a Reel, it supports temperatures from -40 C to +150 C.

AC DC Converters, Offline Switchers Feature Summary

• Integrates primary-side switching, secondary-side sensing, and synchronous rectification into a single chip.
• Employs FluxLink technology for isolated feedback without requiring optocouplers.
• Utilizes PowiGaN technology to achieve high efficiency and compact design.

AC DC Converters, Offline Switchers Applications

• High-efficiency AC/DC power supplies
• Compact adapter designs
• Flyback integrated switcher implementations

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix H189 against official Power Integrations documentation to confirm exact pinout and electrical characteristics. Confirm package type matches InSOP-24D requirements. Ensure thermal management aligns with the specified operating temperature range. Check for RoHS compliance status via manufacturer datasheets before integration.

AC DC Converters, Offline Switchers Selection Notes

Select this component for applications requiring high power density and efficiency in flyback topologies. The integrated GaN switch reduces external component count. Verify that the 170 W output capability meets system load requirements. Ensure the 140 kHz switching frequency fits EMI constraints. Confirm compatibility with the InSOP-24D footprint during PCB layout.

AC DC Converters, Offline Switchers Part Context

This part belongs to the InnoSwitch4-QR family, designed for high-performance offline power conversion. It combines advanced control logic with wide-bandgap semiconductor technology. The series targets modern energy-efficient standards through integrated synchronous rectification and precise regulation mechanisms.

AC DC Converters, Offline Switchers Replacement Considerations

Consult official substitution guides for compatible InnoSwitch4 variants. Verify equivalent power ratings and package dimensions. Ensure functional compatibility regarding switching frequency and control interfaces before replacing.