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https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1500073/tps7a53b-state-of-pg-when-device-is-unpowered
工具/软件：
如果器件未通电、PG 的状态是什么？ 悬空以使外部上拉电阻将声明电源正常？
还是通过钳位二极管保持低电平？
您好、David：
如果器件未通电、PG 将悬空。 如果该引脚被另一个电源输出上拉、则可能会造成 PGOOD 信号已置位的错误印象。
此致、
Alex Davis
