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              ME8202SG图片

              ME8202SG
              元件品牌东森微
              元件型号ME8202SG
              采购数量
               

              产品介绍

              ME8202SG原装现货微盟PWM控制芯片印字8202.东森微电子是微盟(ME)代理商.

              ME8202SG is a highly integrated current mode PWM control IC optimized for high performance, low standby power and cost effective offline flyback converter applications. PWM switching frequency at normal operation is externally programmable and trimmed to tight range. At no load or light load condition, the IC operates in extended burst mode to minimize switching loss. Lower standby power and higher conversion efficiency is thus achieved.VDD low startup current and low operating current contribute to a reliable power on startup design with ME8202. A large value resistor could thus be used in the startup circuit to minimize the standby power. The internal slope compensation improves system large signal stability and reduces the possible subharmonic oscillation at high PWM duty cycle output. Leading-edge blanking on current sense input removes the signal glitch due to snubber circuit diode reverse recovery and thus greatly reduces the external component count and system cost in the design. ME8202 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). The Gate-drive output is clamped at 16V to protect the power MOSFET. In ME8202,OCP threshold slope is internally optimized to reach constant output power limit over universal AC input range. Excellent EMI performance is achieved with frequency shuffling technique together with soft switching control at the totem pole gate drive output. Tone energy at below 20KHZ is minimized in the design and audio noise is eliminated during operation.
              ME8202SG Features
               *  Extended Burst Mode Control For Improved Efficiency and Minimum Standby Power Design
               *  Audio Noise Free Operation
               *  External Programmable PWM Switching Frequency
               *  Internal Synchronized Slope Compensation
               *  Low VDD Startup Current (3A) and Low Operating Current (1.8mA)
               *  External programmable over temperature protection (OTP)
               *  With or without On-chip VDD OVP for system OVP
               *  Under Voltage Lockout with Hysteresis (UVLO)
               *  Gate Output Maximum Voltage Clamp (16V)
               *  Line Input Compensated Cycle-by-Cycle Over- current Threshold Setting For Constant Output current Limiting Over Universal Input Voltage Range(OCP).
               *  Over load Protection (OLP)
              Typical Application
              Offline AC/DC flyback converter for
               *  Battery Charger
               *  PC/TV/Set-Top Box Power Supplies
               *  Laptop Power Adaptor
               *  Open-frame SMPS
              Package
               *  8-pin SOP8DIP8

              我司不但为您提供可靠的ME8202SG集成电路还?#21830;?#20379;ME8202SG应用资料各类证书及产品研发技术支持
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              ME8202SG

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