Powerint TOP259LN 65W笔记本电脑电源方案

Powerint 公司的65W笔记本电脑用适配器是采用TOP259LN的超小型电源解决方案. 适配器采用90 VAC – 265 VAC 输入, 输出为19.7 V, 3.33 A. 230VAC无负载输入的功耗非常低,小于250mW,满足能源之星2.0的节能要求, 115 V / 60 Hz和230 V / 50 Hz的效率大于88%,具有极好的瞬态负载响应.本文介绍TOP252-262 TOPSwitch-HX系列主要特性,方框图和多种应用电路,以及65W笔记本电脑用适配器参考设计电路图和材料清单.

TOP252-262 TOPSwitch-HX Family

Enhanced EcoSmart?, Integrated Off-Line Switcher with Advanced Feature Set and Extended Power Range

TOP252-262 TOPSwitch-HX 系列主要亮点:

Lower System Cost, Higher Design Flexibility

Multi-mode operation maximizes effi ciency at all loads

New eSIP-7F and eSIP-7C packages

Low thermal impedance junction-to-case (2℃ per watt)

Low height is ideal for adapters where space is limited

Simple mounting using a clip to aid low cost manufacturing

Horizontal eSIP-7F package ideal for ultra low height adapter and monitor applications

Extended package creepage distance from DRAIN pin to adjacent pin and to heat sink

No heatsink required up to 35 W using P, G and M packages

with universal input voltage and up to 48 W at 230 VAC
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