TNY379PN

TNY375-380 TinySwitch-PK Family ® Energy-Efficient, Off-Line Switcher With Enhanced Peak Power Performance Product Highlights Lowest System Cost with Enhanced Flexibility • Simple ON/OFF control, no loop compensation needed • Unique Peak Mode feature extends power range without increasing transformer size • Maximum frequency and current limit boosted at peak loads • Selectable current limit through BP/M capacitor value • Higher current limit extends maximum power in open frame • Lower current limit improves efficiency in enclosed adapters • Allows optimum TinySwitch-PK choice by swapping devices with no other circuit redesign • T ight I2f parameter tolerance reduces system cost • Maximizes MOSFET and magnetics power delivery • ON time extension – typically extends low line regulation range/ hold-up time to reduce input bulk capacitance • Self-biased: no bias winding required for TNY375-376; winding required for TNY377-380 • Frequency jittering reduces EMI filter costs • Optimized pin out eases pcb/external heatsinking • Quiet source-connected heatsink pins for low EMI Enhanced Safety and Reliability Features • Accurate hysteretic thermal shutdown with automatic recovery provides complete system level overload protection and eliminates need for manual reset • Auto-restart delivers