TNY264PN is a low-power AC-DC switching IC made by Power Integrations. It is part of the TinySwitch-II family, commonly used in small switch-mode power supplies (SMPS) such as chargers, standby supplies, and appliance control boards. 

This IC integrates several circuits inside one chip, including a 700 V power MOSFET, oscillator, current-limit circuit, and thermal protection, which allows simple flyback power-supply designs with very few external components. 

Main Specifications

• Series: TinySwitch-II

• Input voltage: 85 – 265 VAC

• Internal MOSFET voltage: 700 V

• Switching frequency: ≈132 kHz

• Maximum output power:

  • ≈9 W at 230 VAC

  • ≈6 W with universal input (85-265 VAC) 

• Duty cycle: about 65 %

• Package: DIP-8 (7 pins used)

• Operating temperature: -40 °C to +150 °