(Hong Kong)
Product Summary
The TNY180PN is an energy efficient, low power off-line switcher. It integrates a 700 V power MOSFET, oscillator, high voltage switched current source, current limit and thermal shutdown circuitry. They start-up and run on power derived from the DRAIN voltage, eliminating the need for a transformer bias winding and the associated circuitry. And yet, they consume only about 80 mW at no load, from 265VAC input. A simple ON/OFF control scheme also eliminates the need for loop compensation.
Parametrics
TNY180PN absolute maximum ratings: (1)drain voltage: -0.3 to 700V; (2)peak drain current: 400mA; (3)enable voltage: -0.3 to 9V; (4)enable current: 100mA; (5)bypass voltage: -0.3 to 9V; (6)storage temperature: -65 to 150℃; (7)lead temperature: 260℃; (8)operating junction temperature: -40 to 150℃.
Features
TNY180PN features: (1)High voltage powered – ideal for charger applications; (2)Very high loop bandwidth provides excellent transient response and fast turn on with practically no overshoot; (3)Current limit operation rejects line frequency ripple; (4)Glitch free output when input is removed; (5)Built-in current limit and thermal protection; (6)44 kHz operation (TNY253/4) with snubber clamp reduces EMI and video noise in TVs & VCRs; (7)Operates with optocoupler or bias winding feedback
Diagrams
