产品中心

SP2628P

is a high performance offline PSR power switch for low power AC/DC charger and adapter applications.

详细介绍 文档与工具 样品及购买

        SP2628P is a high performance offline PSR power switch for low power AC/DC charger and adapter applications. It operates in primary-side sensing and regulation. Thus, opto-coupler and TL431 are not required. In CC control, the output current and power setting can be adjusted externally by the sense resistor RCS at CS PIN. In CV control, multi-mode operations are utilized to achieve high performance and high efficiency. In addition, good load regulation is achieved by the built-in cable drop compensation. SP2628P operates in PFM in CC mode, and it operates in PWM+PFM in CV mode with frequency reduction at light/medium load. The chip consumes very low operation current. It achieves less than 50mW standby power to meet strict standby power standard.

SP2628P offers comprehensive protection coverage with auto-recovery feature including Cycle-by-Cycle current limiting, VDD over voltage protection (OVP), FB over voltage protection, FB under voltage protection, load short circuit protection, under voltage lockout (UVLO), OTP etc.

        SP2628P is offered in DIP7 packages.


典型应用框图

功能

 ● High precision constant voltage and current regulation at universal AC input

 ● Integrated 650V MOSFET

 ● Primary-side sensing and regulation without TL431 and opto-coupler

 ● Adjustable constant current and output power setting

 ● Good dynamic response

 ● No need for control loop compensation

 ● Less than 50mW standby power consumption at 230V with typical application circuit

 ● Ultra Low start-up and low operation current

 ● Built-in Leading Edge Blanking(LEB)

 ● Programmable cable drop compensation

 ● Multi-mode PWM and PFM operation for efficiency improving and audio noise free operation

 ● DIP7 Package

应用

 ● Small Power Adapter

 ● Cell Phone Charger

 ● Digital Cameras Charger

 ● Linear Regulator/RCC Replacement

样品及购买 样片申请
推荐产品
联系我们
地址:江苏省无锡市新吴区珠江路51号
联系电话:0510-85342929/85345959
传真:0510-85347778
Copyright ©2017 无锡硅动力微电子股份有限公司

苏公网安备