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https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/870442/tps25942a-about-pgood-output-when-in1-0v
我们打算在 TPS25942A 数据表中引用 FIGUE79电路配置。 当 IN1 = 0V 时、主器件 PGOOD 输出能否将"优先级信号"(从器件 OVP 输入)驱动为低电平？
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是的、 即使当 IN1 = 0V 时、器件也会将"优先级信号"驱动为低电平。 我们有一个内置电路技巧、即使 在 IN1 = 0V 时、也会从 Vout 获取功率以保持"优先级信号"为低电平
BR、Rakesh
