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CR6345

CategoryPower/power management    Power switch chip   
File Size1MB,11 Pages
ManufacturerChip-Rail
Websitehttp://www.chiprail.com
Chengdu Qichen Microelectronics Co., Ltd. (stock code: 870057) is a high-tech enterprise specializing in the design, production and sales of integrated circuits and system products. It is also an integrated circuit design enterprise certified by the Ministry of Industry and Information Technology and an innovative enterprise supported by Chengdu Hi-tech Zone. Qichen Microelectronics focuses on the design, development and sales of high-performance analog and mixed-signal integrated circuit products. With communications, consumer electronics, computers and other markets as its target, it is committed to becoming a first-class domestic analog and mixed-signal integrated circuit design company. Qichen Microelectronics' core technology won the second prize of the National Science and Technology Progress Award in 2016. Qichen Microelectronics has a core technical team composed of well-known domestic integrated circuit design experts, providing customers with integrated circuit products with competitive performance, quality and cost, and providing system application solutions and professional technical services.
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CR634X-5/7/8/9
高精度CC/CV原边检测PWM开关
主要特点
待机½于75mW
原边检测拓扑结构,无需光耦和TL431
全电压范围内高精度恒压和恒流输出
可编程CC/CV模式控制
采用多模式控制的效率均衡技术
动态负½½调节
内½输出线电压补偿功½
内½初级电感量偏差补偿功½
内½全电压功率自适应补偿功½
内½过温度保护功½
内½输出短路保护功½
内½前沿消隐
启动电流和工½电流½
VDD端过压保护
输出端过压保护
逐周期过流保护
DIP-8L、SOP-7L绿色封装
基本应用
小功率电源适配器
蜂窝电话充电器
数码相机充电器
电脑和服务器辅助电源
替代线性调整器和RCC
产品概述
CR634X
是一款高性½原边检测控制的
PWM
开关,待机功耗小于
75mW。CR634X
部采用了多模式控制的效率均衡技术,
用于优化芯片系统待机功耗和提升效率,
同时采用了
初级电感量补偿技术和内部集成的输出线电压补偿技术,保证了芯片在批量生产过程中
CC/CV
输出精度,
内½的全电压功率自适应补偿技术保证了系统在全电压范围
(90V~264V)
内输出恒定的功率。
CR634X
集成了多种功½和保护特性,
包括欠压锁定
(UVLO)
VDD
过压保护
(OVP)
½启动,过温保护(OTP)
,逐周期电流限制(OCP)
,输出过压保护,输出短路保护,内½
前沿消隐电路,½得芯片具有更高的可靠性。
V2.2
1/11
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