SP2689FC+SP6505FL做5V3.4A SP2689FC是一款6级能效，内置MOS
Features Less than 75mW standby power consumption at230VAC with typical application circuit Integrated 7A 650V MOSFET Less than ±5% constant voltage and currentregulation at universal AC input Primary-side sensing and regulation without TL431and opto-coupler Adjustable constant current and output Compensates for input line voltage variations Eliminates all control loop compensation circuitry Start-up and static current as low as Built-in Leading Edge Blanking(LEB) Programmable cable voltage drop c Multi-mode PWM and PFM operation for efficiencyimproving and audio noise free operation SOP8 PackageApplications Small Power Adapter Cell Phone Charger Digital Cameras Charger Linear Regulator/RCC ReplacementGeneral DescriptionSimplified ApplicationACInput+ +R FUSEFigureHigh Performance CC/CV Primary-Side Power Switchwww.si-power.comUnauthorized Photocopy and Duplication ProhibitedLess than 75mW standby power consumption atwith typical application circuitconstant voltage and currentside sensing and regulation without TL431utput power settingCompensates for input line voltage variationsEliminates all control loop compensation circuitryas low as 5uA and 600uA.in Leading Edge Blanking(LEB)able cable voltage drop compensationmode PWM and PFM operation for efficiencyand audio noise free operationLinear Regulator/RCC ReplacementSP2689FC is a high performance offline PSRswitch for low power AC/DC capplications. Using 3D packaging technology,7A/650V MOSFET in the SOP8primary-side sensing and regulation. Thus, optoand TL431 are not required.current and power setting can be adjusted externally bythe sense resistor R CS at CS PIN. In CV control,multi-mode operations are utilized to achieve highperformance and high efficiency.regulation is achieved by the builtcompensation. SP2689FC operates in PFM in CC mode,and it operates in PWM+PFM in CV mode with frequencyreduction at light/medium load. The chip consumes verylow operation current. It achieves less than 75mWstandby power to meet all global energy efficiencyregulations.SP2689FC offers comprehensive protection coveragewith auto-recovery feature includingcurrent limiting, VDD over voltageover voltage protection, load shortunder voltage lockout (UVLO),SP2689FC is offered in SOP8Application+R CSN P N SN AUXSP2689FC123864 5 CSFBVDDGNDDrainDrainR 1R 27 DrainDrainFigure 1.Simplified Application of SP2689FCSP2689FCSide Power SwitchPage1is a high performance offline PSR powerfor low power AC/DC charger and adapterUsing 3D packaging technology, integrated0V MOSFET in the SOP8 package.It operates inside sensing and regulation. Thus, opto-couplerand TL431 are not required. In CC control, the outputcurrent and power setting can be adjusted externally byat CS PIN. In CV control,ons are utilized to achieve higherformance and high efficiency. In addition, good loadregulation is achieved by the built-in cable dropoperates in PFM in CC mode,and it operates in PWM+PFM in CV mode with frequencyreduction at light/medium load. The chip consumes veryIt achieves less than 75mWll global energy efficiencyoffers comprehensive protection coveragerecovery feature including Cycle-by-Cycleoltage protection (OVP), FBshort circuit protection, VDDOTP etc.packages.
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