陈先生:
有看到LR3842的DATASHEET,关注其他同类型号没有的OVER TEMP PROTECT功能,想知道具体动作的温度是多少?我有测试过ST和MOTOLORA的UC3842A,加温到160C也没有保护动作.
![](http://u.dianyuan.com/bbs/u/27/1111574336.gif)
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/27/1111574336.gif');}" onmousewheel="return imgzoom(this);">
![](http://u.dianyuan.com/bbs/u/27/1111574518.gif)
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/27/1111574518.gif');}" onmousewheel="return imgzoom(this);">