Low Power Off-Line Digital PWM AC/DC Controller CXAC85185 is a high performance offline PWM controller for low power AC/DC charger and adaptor applications. It operates in primary-side regulation

   产品概述 返回TOPc21嘉泰姆

     CXAC85185 is a high performance offline PWM controller for low power AC/DC charger and adaptor applications. It operates in primary-side regulation. Consequently, opto-coupler and voltage reference IC such as CXPU3357D could be eliminated. Proprietary Constant Voltage (CV) and Constant Current(CC) control are integrated. In CC control, the current and output power setting can be adjusted externally by the sense resistor Rs 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 wireloss compensation. CXAC85185 offers power-on soft-start control and protection coverage with auto-recovery features including Cycle-by Cycle current limiting, VCC UVLO,OTP, SCP. Excellent EMI performance is achieved with frequency shuffling technique.   CXAC85185 is available in SOT23-6 packages.

   产品特点 返回TOPc21嘉泰姆

 High precision constant voltage(CV) and constant current (CC) output.  Primary-Side- Regulation without secondary voltage reference and Opto-coupler. c21嘉泰姆

 Programmable CV and CC Regulation. c21嘉泰姆

 Built- in Adaptive Peak Current Regulation c21嘉泰姆

 Programmable wireloss Compensation c21嘉泰姆

 Power-on Soft-Start. c21嘉泰姆

 Flyback Topology in DCM Operation c21嘉泰姆

 Built-in Leading Edge Blanking(LEB) c21嘉泰姆

 Cycle-by-Cycle Current Limiting c21嘉泰姆

 VCC under voltage lockout (UVLO). c21嘉泰姆

 Short Circuit Protection. c21嘉泰姆

 Over Temperature Protection. c21嘉泰姆

 Available in SOT23-6 Packages. c21嘉泰姆

 RoHS Compliant and 100% Lead (Pb)-Freec21嘉泰姆

   应用范围 返回TOPc21嘉泰姆

 Cell Phone Charger c21嘉泰姆

 Small Power Adaptor c21嘉泰姆

 Lower Power LED drivers c21嘉泰姆

 Linear Regulator/RCC Replacement.c21嘉泰姆

   技术规格书（产品PDF) 返回TOP c21嘉泰姆

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