关键词:电源管理 AC/DC转换器 DC/DC转换器 SMPS
时间:2011-05-04 10:46:39 作者:NXP 来源:TEA1733MT
NXP 公司的TEA1733MT是 TEA1733系列GreenChip开关电源(SMPS)控制IC,适用于低成本反激拓扑,工作在固定频率模式,频率抖动降低EMI。输入电压12V-30V,起动和重起的电流非常低,只有10uA,无负载时的工作电流0.5mA,适用于75W以下的开关电源。本文介绍了TEA1733MT主要特性,方框图,典型配置图和典型应用电路图以及TEA1733典型应用电路图。
TEA1733MT:GreenChip SMPS control IC
The TEA1733MT is a low cost Switched Mode Power Supply (SMPS) controller IC intended for flyback topologies. It operates in fixed frequency mode. Frequency jitter has been implemented to reduce ElectroMagnetic Interference (EMI). Slope compensation is integrated for Continuous Conduction Mode (CCM) operation.
The TEA1733MT IC includes OverPower Protection (OPP). This enables the controller to operate under overpower situations for a limited amount of time.
Two pins, VINSENSE and PROTECT, are reserved for protection purposes. Input UnderVoltage Protection (UVP) and OverVoltage Protection (OVP), output OVP and OverTemperature Protection (OTP) can be implemented using a minimal number of external components.
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