TOP256LN

AC DC Converters, Offline Switchers Overview

The TOP256LN is an AC/DC converter from the TopSwitch-HX family, designed for offline flyback applications. It integrates a 700 V power MOSFET, high voltage switched current source, PWM control, oscillator, and thermal shutdown. The device supports multi-mode operation to maximize efficiency at all loads. It offers an output power of 64 W at 85-264 VAC input and 88 W at 230 VAC input. The switching frequency ranges from 66 kHz to 132 kHz. It operates within a temperature range of -40 °C to +150 °C and utilizes the eSIP-7F package.

AC DC Converters, Offline Switchers Feature Summary

• Integrates a 700 V power MOSFET with high voltage switched current source and PWM control
• Multi-mode operation maximizes efficiency across all load conditions
• Includes thermal shutdown protection for enhanced reliability

AC DC Converters, Offline Switchers Applications

• Offline flyback power supplies
• General purpose AC/DC conversion
• Consumer electronics power adapters

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix 'LN' against the manufacturer's official datasheet to confirm pinout and electrical characteristics. Ensure the eSIP-7F package matches your PCB footprint requirements. Confirm RoHS compliance status through the latest product documentation before finalizing procurement decisions.

AC DC Converters, Offline Switchers Selection Notes

Select this component for designs requiring integrated off-line switching capabilities in a compact form factor. The wide input voltage range and high operating temperature make it suitable for robust industrial or consumer applications. Consider the fixed switching frequency options when designing magnetic components.

AC DC Converters, Offline Switchers Part Context

This part belongs to the TopSwitch-HX family, which combines advanced features with extended power ranges. The series is known for lowering system costs and providing design flexibility through integrated power management functions in a single IC package.

AC DC Converters, Offline Switchers Replacement Considerations

Check for other variants within the TOP256 series, such as TOP256EN or TOP256EG, if different package types like eSIP-7C are required. Verify functional compatibility with TOP252-262 family members if alternative power levels are needed.