500) {this.resized=true; this.width=500; this.alt='这是一张缩略图，点击可放大。\n按住CTRL，滚动鼠标滚轮可自由缩放';this.style.cursor='hand'}" onclick="if(!this.resized) {return true;} else {window.open('http://u.dianyuan.com/bbs/u/70/108121225439913.gif');}" onmousewheel="return imgzoom(this);">关于TOP232P空载功耗问题
目前在做一款手机充电器,输入90-264,输出5V/550mA,用的是PI的TOP232P,因为要过泰尔认证,YD/T1591要求空载功耗小于0.3W,可是不管我怎么调试,空载功耗都大于0.5W,90V时空载功耗0.53W,264V时空载功耗0.84W,请教PI的工程师,此问题应该怎么解决.谢谢!
500) {this.resized=true; this.width=500; this.alt='这是一张缩略图，点击可放大。\n按住CTRL，滚动鼠标滚轮可自由缩放';this.style.cursor='hand'}" onclick="if(!this.resized) {return true;} else {window.open('http://u.dianyuan.com/bbs/u/70/108121225439913.gif');}" onmousewheel="return imgzoom(this);">
500) {this.resized=true; this.width=500; this.alt='这是一张缩略图，点击可放大。\n按住CTRL，滚动鼠标滚轮可自由缩放';this.style.cursor='hand'}" onclick="if(!this.resized) {return true;} else {window.open('http://u.dianyuan.com/bbs/u/70/108121225439913.gif');}" onmousewheel="return imgzoom(this);">