TNY277 Datasheet | Power Integrations

TNY274-280 TinySwitch-III Family Energy-Efficient, Off-Line Switcher with Enhanced Flexibility and Extended Power Range Product Highlights Lowest System Cost with Enhanced Flexibility - Simple ON/OFF control, no loop pensation 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 TinySwitch-III choice by swapping devices with no other circuit redesign - Tight I2f parameter tolerance reduces system cost - Maximizes MOSFET and magnetics power delivery - Minimizes max overload power, reducing cost of transformer, primary clamp & secondary ponents - ON-time extension - extends low line regulation range/hold-up time to reduce input bulk capacitance - Self-biased: no bias winding or bias ponents - Frequency jittering reduces EMI filter costs - Pin-out simplifies heatsinking to the PCB - SOURCE pins are electrically quiet for low EMI Enhanced Safety and Reliability Features - Accurate hysteretic thermal shutdown protection with automatic recovery eliminates need for manual reset - Improved auto-restart delivers <3% of maximum power in short-circuit and open loop fault conditions - Output overvoltage shutdown with optional Zener - Line undervoltage detect threshold set using a single optional 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 + Wide-Range High-Voltage D...