问题：关于BQ25570的冷启动问题

Hi，

由于我的能力采集器采集到的能量太少，所以我想避开BQ25570的冷启动过程，数据手册原文有下面这段话：

The cold start circuit initially clamps VIN_DC to VIN(CS) = 600 mV typical. If sufficient input power (that is, output
current from the harvester clamped to VIN(CS)) is not available, it is possible that the cold start circuit cannot
raise the VSTOR voltage above VSTOR_CHGEN in order for the main boost conveter to start up. It is highly
recommended to add an external PFET between the system load and VSTOR. An inverted VBAT_OK signal
provided by VB_SEC_ON can be used to drive the gate of this system-isolating, external PFET.

我想知道具体电路是如何实现的？下面是我现在的电路原理图。 万分感谢！

Star Xu：

e2e.ti.com/…/635044
您可以参考上面的接法

user5847594：

回复 Star Xu:

Hi,

非常感谢您的回答

best,

deng