TNY277PN Tiny switch

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TNY277PN  is  a type of IC this IC has 7 pin its a tiny switch IC in which one pin is not present its trough hole components. It has manufactured by Power integration. Tiny Switch-III combines a high-voltage power MOSFET switch with a power supply controller in one device. Unlike conventional PWM (pulse width modulator) controllers, it uses a simple ON/OFF control to regulate the output voltage. The controller consists of an oscillator, enable circuit (sense and logic), current limit state machine, 5.85 V regulator, BYPASS/ MULTI-FUNCTION pin under voltage, overvoltage circuit, and current limit selection circuitry, over-temperature protection, current limit circuit, leading edge blanking, and a 700 V power MOSFET. Tiny Switch-III incorporates additional circuitry for line under voltage sense, auto-restart, adaptive switching cycle on-time extension, and frequency jitter.


  • DIP8/SO8 Packages
  • Accurate hysteretic thermal shutdown protection with automatic recovery eliminates need for manual reset
  • Improved auto-restart delivers <3% of maximum power in short-circuit and open loop fault conditions
  • Line under voltage detect threshold set using a single optional resistor
  • It has 8 pins
  • Output overvoltage shutdown with optional Zener
Model TNY277PN
Brand Power electronics
Type  IC
Output voltage 12V
Output Power 18W
Switching Frequency 132KHz
Vin 85AC
Storage Temperature Range -40°C to 150°C
Country of Origin China


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