Lowest System Cost with Enhanced Flexibility

? 650 V rated integrated MOSFET

? 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 efficiency in enclosed adapters/

chargers

? Allows optimum TinySwitch-LT 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 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 filter costs

? Pin-out simplifies heat sinking 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 <3 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 singlesided

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

EcoSmart?– Extremely Energy Efficient

? Easily meets all global energy efficiency regulations

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

? <50 mW with bias winding

? ON/OFF control provides constant efficiency down to very light loads

– ideal for mandatory standby consumption regulations

Applications

? Supplies for appliances, home building automation, PC standby and

other auxiliary power supplies.