TNY278GN TNY278G Power Integrations Tinyswitch-III

TNY278GN TNY278G
Power Integrations TinySwitch-III Energy-Efficient, Off-Line Switcher with Enhanced Flexibility and Extended Power Range
TinySwitch™-III 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 flexible solution with a low system cost and extended power capability.
Product Highlights:
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
Tight I2f parameter tolerance reduces system cost; minimizes maximum 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
Frequency jittering reduces EMI filter costs