TNY176DG اورجینال

نقد و بررسی اجمالی

ای سی تغذیه 10 وات،آفلاین سوئیچر Energy Effi cient, Offl ine Switcher with Enhanced Flexibility and Extended Power Range

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Product Highlights

Lowest System Cost with Enhanced Flexibility

 650 V rating optimized for non-active PFC applications

 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 effi ciency in enclosed adapters/chargers

 Allows optimum TinySwitch

LT choice by swapping devices with no other circuit redesign

 Tight I2 f parameter tolerance reduces system cost

 Maximizes MOSFET and magnetics power delivery

- Minimizes max overload power, reducing cost of transformer, primary clamp & secondary components  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 fi lter costs

 Pin-out simplifi es 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

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

 Output overvoltage shutdown with optional Zener

 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 fi eld reliability

EcoSmart® – Extremely Energy Effi cient

 Easily meets all global energy effi ciency regulations

 No-load 150 mW at 265 VAC without bias winding 50 mW with bias winding

ON/OFF control provides constant effi ciency down to very light loads – ideal for mandatory CEC regulations

Applications

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

 DVD/PVR and other low power set top decoders

 Supplies for appliances, industrial systems, metering, etc