TNY287KG

AC DC Converters, Offline Switchers Overview

The TNY287KG is a TinySwitch-4 AC/DC converter from Power Integrations, rated for 18 W at 85-265 VAC and 23.5 W at 230 VAC. It utilizes a K package (eSOP-12B) with Si technology. The device features a self-biased architecture eliminating bias windings, line voltage sense via a single resistor, and an ON/OFF control interface. It includes ±5% turn-on UV threshold accuracy and offers automatic restart under fault conditions.

AC DC Converters, Offline Switchers Feature Summary

• Integrates a 725 V MOSFET to increase breakdown voltage derating margin
• Provides line compensated overload power without additional components
• Features self-biasing capability that removes the need for bias windings or components
• Includes precise hysteresis thermal shutdown protection with automatic recovery

AC DC Converters, Offline Switchers Applications

• PC standby power supplies
• Constant voltage adapters
• Chargers requiring enclosed designs
• Systems needing reduced input bulk capacitance

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix 'KG' corresponds to the eSOP-12B surface-mount package configuration. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure design compatibility with the required thermal management specifications for the selected enclosure environment.

AC DC Converters, Offline Switchers Selection Notes

Select this component when system requirements demand high efficiency in enclosed adapters or chargers. The tight I2f parameter tolerance allows for optimal cost reduction by minimizing input bulk capacitance. It is suitable for applications requiring simple ON/OFF control without loop compensation.

AC DC Converters, Offline Switchers Part Context

This part belongs to the TinySwitch-4 series, which combines a high-voltage power MOSFET with a controller for offline flyback conversion. The series supports universal input ranges and provides enhanced safety features. It enables designers to swap devices within the family without circuit redesign.

AC DC Converters, Offline Switchers Replacement Considerations

TNY287DG and TNY287PG are confirmed substitutes within the same power rating family. Verify package type differences between DIP-8C and eSOP-12B layouts before substitution.