TNY284-290 TinySwitch-4 Family
Energy-Efficient, Off-Line Switcher with Line Compensated Overload Power
Product Highlig...
TNY284-290 TinySwitch-4 Family
Energy-Efficient, Off-Line Switcher with Line Compensated Overload Power
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 efficiency 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 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 over
voltage shutdown with optional Zener
Fast A...