FSGM0465RWDTU

AC DC Converters, Offline Switchers Overview

The FSGM0465RWDTU is an offline flyback converter IC from onsemi's FPS™ series, designed for high-efficiency power conversion. It integrates a 650V breakdown voltage switch and operates at a switching frequency of 66kHz with a maximum duty cycle of 70%. The device supports a Vcc supply range of 7.5V to 26V and features a startup voltage of 12V. Packaged in a TO-220F-6L (formed leads) through-hole housing, it delivers up to 70W of output power. The component includes comprehensive fault protection mechanisms such as current limiting, overloading, overtemperature, overvoltage, and short-circuit protection, ensuring reliable operation within a junction temperature range of -40°C to 125°C.

AC DC Converters, Offline Switchers Feature Summary

• Integrates a high-voltage 650V power switch within a single monolithic IC structure.
• Provides multiple integrated fault protection modes including current limit, overtemperature, and short-circuit protection.
• Features fixed-frequency pulse-width modulation control for stable regulation.
• Designed for isolated offline flyback topology applications.

AC DC Converters, Offline Switchers Applications

• Adapters and chargers for consumer electronics
• Telecommunications equipment power supplies
• Industrial control system power modules

AC DC Converters, Offline Switchers Procurement Notes

Verify the exact part number suffix carefully, as variations like RBWDTU or RWDTU may indicate different packaging or specific manufacturing lot codes. Confirm end-of-life status with the manufacturer, as this component has been marked as obsolete in several distributor databases. Ensure compatibility with existing thermal management solutions given the TO-220F package constraints.

AC DC Converters, Offline Switchers Selection Notes

Select this component for designs requiring a robust, integrated solution for medium-power offline applications. The internal 650V switch simplifies bill of materials by eliminating external discrete components. Consider the 66kHz switching frequency when designing transformer magnetics to balance size and efficiency. Verify that the input voltage range aligns with the 7.5V to 26V Vcc operating window during transient conditions.

AC DC Converters, Offline Switchers Part Context

This IC belongs to onsemi's FPS™ (Frequency Pulse Skip) series, which focuses on high-performance power factor correction and energy efficiency. The series is widely used in general-purpose power supplies where reliability and compact design are prioritized. The TO-220F package allows for direct heatsinking, making it suitable for applications exceeding standard SMD thermal dissipation capabilities.

AC DC Converters, Offline Switchers Replacement Considerations

Check for direct pin-compatible replacements within the same FPS family, such as the FSDM0465RBWDTU, noting potential differences in switching frequency or package form factor. Verify that any substitute maintains the 650V rating and similar fault protection characteristics to ensure circuit safety without redesigning the feedback loop.