TOP255EG

AC DC Converters, Offline Switchers Overview

The TOP255EG is an enhanced EcoSmart integrated off-line switcher from the TOPSwitch-HX family by Power Integrations. It combines a high-voltage power MOSFET, PWM controller, oscillator, and protection circuits on a single monolithic chip. The device supports AC input voltages ranging from 85 VAC to 265 VAC. It features frequency dithering for EMI reduction and includes thermal shutdown and fault protection mechanisms.

AC DC Converters, Offline Switchers Feature Summary

• Integrates a high-voltage power MOSFET with advanced control circuitry
• Features frequency dithering to minimize electromagnetic interference
• Includes thermal shutdown and comprehensive fault protection

AC DC Converters, Offline Switchers Applications

• General purpose AC-DC power supplies
• Battery chargers
• Adapters for consumer electronics

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific package type and pinout configuration against the official datasheet before procurement. Ensure the component meets all required safety certifications for the target application region. Confirm availability of the exact suffix variant as package options may vary within the product line.

AC DC Converters, Offline Switchers Selection Notes

Select this component for designs requiring a compact, high-reliability solution for low-to-medium power applications. Consider the thermal performance requirements relative to the intended enclosure design. Evaluate the EMI filtering needs based on the frequency dithering characteristics provided in the technical specifications.

AC DC Converters, Offline Switchers Part Context

This part belongs to the TOPSwitch-HX series, which represents an evolution of the popular TOPSwitch family. It offers improved efficiency and reduced standby power consumption compared to previous generations. The integration level simplifies the design process by reducing the number of external components required.

AC DC Converters, Offline Switchers Replacement Considerations

Check for direct replacements within the TOP255 series or compatible TOPSwitch-HX variants. Verify pin compatibility and electrical parameter equivalence before substituting.