在设计中把TPS65910的VCC1, VCC2, VCCIO, VCC3, VCC4, VCC5, VCC6, VCC7都接在5V上,同时PWRHOLD通过电阻分压的方式也接在5V。如果外部5V供电,此时TPS65910的VCC上电,同时PWRHOLD拉高(PWRON接在VRTC上),采用这种tps65910方式是否能够正常开机?PWRHOLD拉高与TPS65910的VCC供电是否需要延时?需要多久的延时?
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在设计中把TPS65910的VCC1, VCC2, VCCIO, VCC3, VCC4, VCC5, VCC6, VCC7都接在5V上,同时PWRHOLD通过电阻分压的方式也接在5V。如果外部5V供电,此时TPS65910的VCC上电,同时PWRHOLD拉高(PWRON接在VRTC上),采用这种tps65910方式是否能够正常开机?PWRHOLD拉高与TPS65910的VCC供电是否需要延时?需要多久的延时?