The TNY279PN incorporates a 700 V power MOSFET, oscillator, high voltage switched current source, current limit (user selectable) and thermal shutdown circuitry. The IC family uses an ON/OFF control scheme and offers a design fl exible solution with a low system cost and extended power capability.
Features:-
•  Simple ON/OFF control, no loop compensation needed
•  Selectable current limit through BP/M capacitor value
•  Higher current limit extends peak power or, in open  frame applications, maximum continuous power Lower current limit improves efficiency in enclosed   adapters/chargers
•  Allows optimum TNY279PN choice by swapping devices with no other circuit redesign Tight I2f parameter tolerance reduces system cost
•  Maximizes MOSFET and magnetic power delivery
•  Minimizes max overload power, reducing cost of transformer, primary clamp & secondary components ON-time extension – extends low line regulation range/hold-up time to reduce input bulk capacitance
•  Self-biased: no bias winding or bias components
•  Frequency jittering reduces EMI filter costs
• Pin-out simplifies heat sinking to the PCB SOURCE pins are electrically quiet for low EMI
Specification:-
| Symbol | Parameter | Min | Type | Max | Units |
| VBP | BYPASS Pin Voltage | 5.6 | 5.85 | 6.15 | V |
| VBPH | BYPASS Pin Voltage Hysteresis | 0.80 | 0.95 | 1.2 | V |
| VSHUNT | BP/M Pin Shunt Voltage | 6 | 6.4 | 6.7 | V |
| ICH1 | BP/M Pin Charge Current | -9.7 | -6.8 | -3.9 | m A |
 TNY279PN IC Data Sheet* Product Images are shown for illustrative purposes only and may differ from actual product.
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