TNY290KG集成電路（IC）的ACDC轉換器離線開關規(guī)格書PDF中文資料

Product Highlights

Lowest System Cost with Enhanced Flexibility

? 725 V rated MOSFET

? Increases BV de-rating margin

? Line compensated overload power – no additional components

? Dramatically reduces max overload variation over universal input voltage range

? ±5 turn on UV threshold: line voltage sense with single external resistor

? 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

? Lower current limit improves effciency in enclosed adapters/chargers

? Allows optimum TinySwitch-4 choice by swapping devices with no other circuit redesign

? Tight I2f parameter tolerance reduces system cost

? Maximizes MOSFET and magnetics utilization

? ON-time extension – extends low-line regulation range/hold-up time to reduce input bulk capacitance

? Self-biased: no bias winding or bias components

? Frequency jittering reduces EMI flter costs

? Pin-out simplifes heat sinking to the PCB

? SOURCE pins are electrically quiet for low EMII

Enhanced Safety and Reliability Features

? Accurate hysteretic thermal shutdown protection with automatic recovery eliminates need for manual reset

? Auto-restart delivers <3 of maximum power in short-circuit and open loop fault conditions

? Output overvoltage shutdown with optional Zener

? Fast AC reset with optional UV external resistor

? Very low component 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 feld reliability

EcoSmart?– Extremely Energy Effcient

? Easily meets all global energy effciency regulations

? No-load <30 mW with bias winding, <150 mW at 265 VAC without bias winding

? ON/OFF control provides constant effciency down to very light loads – ideal for mandatory CEC regulations and EuP standby requirements

Applications

? PC Standby and other auxiliary supplies

? DVD/PVR and other low power set top decoders

? Supplies for appliances, industrial systems, metering, etc

? Chargers/adapters for cell/cordless phones, PDAs, digital cameras, MP3/portable audio, shavers, etc.