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DC/DC Power Management IC
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S7134B
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S7134B系列芯片是一款高性能恒压恒流原边反响控制器,适用于种种低功耗AC/DC充电器和适配器应用场合。该控制器接纳原边反响控制机制,无需光耦和TL431即可以实现高精度的电压输出。 在恒流控制模式中,可以通过改变与CS管脚毗连的电阻Rcs阻值来调理输出电流巨细。在恒压控制模式下S7134B使用了多种事情模式以获得高转换效率和小的音频异响。
Advantage
<75mW待机功耗,知足六级能效要求
准谐振事情机制,提高系统效率
峰值电流渐变颤抖改善 EMI
内置功率三极管
恒压、恒流精度高
输出线损赔偿可调
Application area
手机、无绳电话、PDA、MP3和其它便携式装备等的适配器、充电器
LED驱动电源
线性电压和RCC开关电源升级换代
PC、TV等装备使用的辅助电源
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