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SDH8634

CategoryPower/power management    Switching power supply chip   
File Size326KB,10 Pages
ManufacturerSilan
Websitehttp://www.silanic.com.cn/
Hangzhou Silan Microelectronics Co., Ltd. (SSE stock code: Silan Micro, 600460) is located in Hangzhou High-tech Industrial Development Zone. It is a high-tech enterprise specializing in integrated circuit chip design and semiconductor microelectronics related product production. The company's current main products are integrated circuits and semiconductor products.
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SDH8634
说明书
内½高压MOSFET的PWM+PFM控制器系列
描述
SDH8634
是用于开关电源的内½高压
MOSFET
及高压启动恒流源、
外½采样电阻的电流模式
PWM+PFM
控制器。
½待机功耗<30mW。
有多种控制模式:
SDH8634
内½高压启动恒流源,
在重½½时,工½在
PWM
模式;在½½½时,工½在
PFM
模式,以提高½换
效率;在空½½时,进入打嗝模式,以降½待机功耗。
SDH8634
具有抖频功½,以降½
EMI。内½峰值电流补偿电路,可以
½不同交流电压输入时极限输出功率一致。
内½½启动功½可以在上电过程
中减小变压器的应力,防止变压器饱和。
SDH8634内部集成全面的异常状态保护功½,包括前沿消隐(LEB)
逐周期峰值限流,VCC过压保护(OVP)
,输出过½½保护(OLP)和过温保
护(OTP)等。
主要特点
高压启动
½待机功耗<30mW
多种控制模式
抖频
峰值电流补偿
½启动
前沿消隐(LEB)
逐周期峰值限流
VCC
过压保护(OVP)
输出过½½保护(OLP)
过温保护(OTP)
应用
开关电源
产品规格分类
产品名称
SDH8634
封装类型
DIP-8-300-2.54
打印名称
SDH8634
环保等级
无卤
包装
料管
典型输出功率½力
产品
SDH8634
190~265V
适配器
20W
开放式
22W
适配器
18W
85~265V
开放式
20W
杭州士兰微电子股½有限公司
http: //www.silan.com.cn
版本号:1.0
10
页第
1
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