TNY378PN Datasheet | Power Integrations

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 Tiny Switch-PK choice by swapping devices with no other circuit redesign - Tight 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 plete system level overload protection and eliminates need for manual reset - Auto-restart delivers <3% maximum power in short circuit and open loop fault conditions - Output overvoltage shutdown with optional Zener - Line undervoltage detect threshold set using a single resistor - Very low ponent count enhances reliability and enables single sided printed circuit board layout - High bandwidth provides fast turn on with no overshoot and excellent transient load response - Extended creepage between DRAIN and all other pins improves field reliability Eco Smart - Extremely Energy Efficient - Easily meets all global energy efficiency regulations - No-load <170 m W at 265 VAC without bias winding, <60 m W with bias winding - ON/OFF control provides constant efficiency down to very light loads - ideal for mandatory CEC efficiency regulations and 1 W PC standby requirements Applications - Applications with high peak-to-continuous power demands - DVDs, PVRs, active speakers (e.g. PC audio), audio amplifiers, modems, photo printers -...