TNY264 IC Energy-Efficient Low Power Off-Line Switcher DIP-8 TNY264

Product Overview

The TNY264 is part of the TinySwitch-II family, which consists of energy-efficient, low-power, off-line switchers. It integrates a 700 V power MOSFET, oscillator, high-voltage switched current source, current limit, and thermal shutdown circuitry into a single monolithic device. The start-up and operating power are derived directly from the voltage on the DRAIN pin, eliminating the need for a bias winding.

Core Specifications

• Manufacturer: Power Integrations

• Function: Off-line switcher (TinySwitch-II Family)

• Frequency: 132 kHz (operation reduces transformer size)

• Fault Protection: Fully integrated auto-restart for short circuit and open-loop conditions

• EMI Reduction: Frequency jittering (reduces EMI by approximately 10 dB)

• Undervoltage Detect: Programmable line undervoltage detect prevents power-on/off glitches

• Design Feature: Eliminates the need for a bias winding and reduces external component count