Current Mode PWM Power Switch Freq Shuffling CXAC8577B CXAC8578combines a dedicated current mode PWM controller with a high voltage power MOSFET

   产品概述 返回TOPoLt嘉泰姆

    CXAC8577B   CXAC8578combines a dedicated current mode PWM controller with a high voltage power MOSFET. It is optimized for high performance, low standby power, and cost effective off-line flyback converter applications in sub 15W range. CXAC8577B   CXAC8578 offers complete protection coverage with automatic self-recovery feature including Cycle-by-Cycle current limiting (OCP), over load protection (OLP), VDD over voltage clamp and under voltage lockout (UVLO). Excellent EMI performance is achieved with proprietary frequency shuffling technique together with soft switching control at the totem pole gate drive output. The tone energy at below 20KHZ is minimized in the design and audio noise is eliminated during operation. BCXAC8577B   CXAC8578is offered in DIP-8 & DIP-7 package.oLt嘉泰姆

   产品特点 返回TOPoLt嘉泰姆

■Power on Soft Start Reducing MOSFET VDS Stress oLt嘉泰姆

■Frequency shuffling for EMI oLt嘉泰姆

■Extended Burst Mode Control For Improved Efficiency and Minimum        Standby Power Design oLt嘉泰姆

■Audio Noise Free Operation oLt嘉泰姆

■Fixed 50KHZ Switching Frequency oLt嘉泰姆

■Internal Synchronized Slope Compensation oLt嘉泰姆

■Low VDD Startup Current and Low Operating Current oLt嘉泰姆

■Leading Edge Blanking on Current Sense Input Good Protection         oLt嘉泰姆

    Coverage With Auto Self-Recovery oLt嘉泰姆

     VDD Over Voltage Clamp and Under Voltage Lockout with    oLt嘉泰姆

        Hysteresis  (UVLO) oLt嘉泰姆

     Line Input Compensated Cycle-by-Cycle Over-current Threshold    oLt嘉泰姆

     Setting For Constant Output Power Limiting Over Universal Input    oLt嘉泰姆

      Voltage Range oLt嘉泰姆

    Overload Protection (OLP) oLt嘉泰姆

    Over voltage Protection (OVP) oLt嘉泰姆

■Pb-Free DIP-8L , DIP-7LoLt嘉泰姆

   应用范围 返回TOPoLt嘉泰姆

 Offline AC/DC flyback converter for oLt嘉泰姆

■Battery Charger oLt嘉泰姆

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■Open-frame SMPSoLt嘉泰姆

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