The CXAC8544 is a high performance AC/DC power supply controller for battery charger and adapter applications. The device uses Pulse Frequency Modulation(PFM) method to build discontinuous conduction

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The CXAC8544 is a high performance AC/DC power supply controller for battery charger and adapter applications. The device uses Pulse Frequency Modulation(PFM) method to build discontinuous conduction mode (DCM) flyback power supplies. The CXAC8544 provides accurate constant voltage, constant current (CV/CC) regulation while removing the opto-coupler and secondary control circuitry. It also eliminates the need of loop compensation circuitry while maintaining stability. The CXAC8544 achieves excellent regulation and high average efficiency, yet meets the requirement for no-load consumption less than 30mW.

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Set-in high-voltage power switch tube of 700V and few peripheral components.pbE嘉泰姆

 
Primary Side Control for Rectangular Constant Current and Constant Voltage OutputpbE嘉泰姆

 
Sub-microampere Start-up Current
30mW No-load Input Power FeasiblepbE嘉泰姆

 
Tight CV Regulation PerformancepbE嘉泰姆

 
Eliminates Opto-coupler and Secondary CV/CC Control Circuitry
Eliminates Control Loop Compensation CircuitrypbE嘉泰姆

 
Flyback Topology in DCM OperationpbE嘉泰姆

 
Random Frequency Modulation to Reduce System EMI
Built-in Soft StartpbE嘉泰姆

 
Open Feedback ProtectionpbE嘉泰姆

 
Short Circuit ProtectionpbE嘉泰姆

 
SOP8 PackagepbE嘉泰姆

   应用范围 返回TOPpbE嘉泰姆

Adapters/Chargers for Cell/Cordless Phones, PDAs, MP3 and Other Portable ApparatuspbE嘉泰姆

 
LED DriverspbE嘉泰姆

 
Standby and Auxiliary Power SuppliespbE嘉泰姆

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