TOP255MN

AC DC Converters, Offline Switchers Overview

The TOP255MN is an AC/DC converter and off-line switcher IC from the TopSwitch-HX series by Power Integrations. It integrates a 700 V power MOSFET, high voltage switched current source, PWM control, oscillator, thermal shutdown, and cycle-by-cycle current limit into a single package. The device operates at a switching frequency of 66 kHz with a maximum duty cycle of 83%. It supports a minimum operating temperature of -40 °C and a maximum of +150 °C. The component utilizes SDIP-10C packaging for through-hole installation.

AC DC Converters, Offline Switchers Feature Summary

• Integrates a 700 V power MOSFET with high voltage switched current source
• Includes built-in thermal shutdown and cycle-by-cycle current limit protection
• Combines PWM control and oscillator functions in a single chip

AC DC Converters, Offline Switchers Applications

• Off-line flyback topology converters
• General purpose AC/DC conversion systems
• Offline switcher applications requiring integrated protection

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific manufacturer part number against official Power Integrations documentation to ensure accuracy. Confirm that the SDIP-10C package matches your PCB footprint requirements. Check the datasheet for any recent product change notices or marking updates. Ensure the component meets the required thermal and electrical specifications for your design environment before finalizing procurement.

AC DC Converters, Offline Switchers Selection Notes

Select this component for designs requiring an integrated offline switcher with high voltage capability. The 66 kHz switching frequency offers a balance between size and efficiency. Consider the SDIP-10C package constraints for thermal management and board space. Verify compatibility with the intended flyback transformer design parameters.

AC DC Converters, Offline Switchers Part Context

The TOP255MN belongs to the TopSwitch-HX family, which combines power switching and control logic. This series is designed for cost-effective off-line power supplies. The MN suffix indicates the specific pinout and package configuration within the TOP255 lineup.

AC DC Converters, Offline Switchers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided data.