图 6:欠压保护时序图(高侧) Fig 6:Undervoltage protection sequence diagram (High side) b1 : 电源电压上升:当该电压上升到欠压恢复点,在下一个欠压信号被执行前该线路将启动运行。 b1: Power supply voltage rise: When the voltage rises to the undervoltage recovery point, the line will start running before the next undervoltage signal is executed. b2 : 正常运行 : MOSFET 导通并加载负载电流。 b2: Normal operation: MOSFET is turned on and load current is applied. b3 : 欠压检测 (UV BSD ) 。 b3: Undervoltage detection (UV BSD ). b4 : 不管输入是什么信号, MOSFET 都是关闭状态。 b4: No matter what signal is input, MOSFET is off. b5 : 欠压恢复 (UV BSR ) 。
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