INN3366C-H301-TL

AC DC Converters, Offline Switchers Overview

The INN3366C-H301-TL is an offline switcher IC from the InnoSwitch3-Pro family, integrating a 75 kHz multi-mode quasi-resonant flyback controller, a 650 V primary MOSFET, and secondary-side synchronous rectification with FluxLink feedback. It supports output voltages from 3 V to 24 V with power ratings of 27 W or 40 W. The device operates on an 85 VAC to 265 VAC input range and features a typical no-load supply current of 860 uA. Packaged in an InSOP-24D surface-mount format, it provides comprehensive protection against overcurrent, overtemperature, and short circuits.

AC DC Converters, Offline Switchers Feature Summary

• Digitally controllable via I2C interface for dynamic voltage and current adjustment
• Highly integrated design combining primary controller, high-voltage switch, and synchronous rectifier
• FluxLink technology enables HIPOT-isolated feedback without optocouplers
• Advanced telemetry capabilities for real-time status monitoring and fault reporting

AC DC Converters, Offline Switchers Applications

• USB PD 3.0 chargers with Programmable Power Supply (PPS) outputs
• Compact AC/DC adapters requiring precise digital control
• High-efficiency power supplies for consumer electronics
• Battery charging systems needing telemetry and fault monitoring

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix 'H301' against official datasheets to confirm the absence of the internal SR pull-down resistor found in H302 variants. Ensure compatibility with your microcontroller's I2C voltage levels, as the uVCC pin provides a dedicated bias supply. Confirm that the InSOP-24D package dimensions align with your PCB footprint requirements before finalizing orders.

AC DC Converters, Offline Switchers Selection Notes

Select this component when designing power supplies that require precise digital regulation via I2C rather than traditional analog feedback. It is suitable for applications demanding high efficiency across wide load ranges and those benefiting from integrated telemetry for system health monitoring. Consider the 650 V rating for standard isolation requirements and verify thermal management needs for the InSOP-24D package under maximum load conditions.

AC DC Converters, Offline Switchers Part Context

This part belongs to the InnoSwitch3-Pro series, which utilizes PowiGaN technology to achieve high power density. The series is designed to simplify the development of fully digitally controlled, high-efficiency power supplies. It replaces discrete controller and switch solutions by integrating all necessary power and control functions into a single compact package, reducing bill-of-materials complexity.

AC DC Converters, Offline Switchers Replacement Considerations

The INN3366C-H302-TL serves as a direct substitute within the same family, differing primarily by the inclusion of an internal 4.7 Ω SR pull-down resistor. Verify if the external pull-down resistor required by the H301 variant can be removed when switching to H302 to simplify the design.