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MC33033 是一款高性能的第二代、功能受限的单片无刷直流电机控制器,从 MC33034 和 MC33035 控制器发展而来。它包含了开环、三相或四相电机控制实施所需的所有有效功能。该器件包括用于正确换向顺序的转子位置解码器、能够为传感器供电的温度补偿参考、频率可编程的锯齿波振荡器、完全可访问误差放大器、脉宽调制比较器、三个开路收集器顶部驱动器,以及三个高电流图腾柱底部驱动器,适用于驱动功率 MOSFET。与前代器件不同,它没有单独的驱动电路电源和接地引脚、制动输入或故障输出信号。MC33033 中包含了保护功能,有欠压锁定、按周期电流限制且带有可选择时间延迟的关断模式,以及内部高温关断。典型电机控制功能包括开环速度、正向或反向以及运行启用。MC33033 适用于运行电子传感器相位为 60°/300° 或 120°/240° 的无刷电机,还可高效控制电刷直流电机。
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MC33033DW
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MC33033DWG
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MC33033DWR2
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