关于bq25120

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    见datasheet对V(uvlo)的规格定义： V(UVLO)即input under-voltage， 输入欠压

   具体看输入电压Vin欠压保护（UVLO）描述：The input under-voltage status indication is used to notify the host or other device when the input voltage falls below a desired threshold. When VIN < VUVLO, after the deglitch time tDGL_UVLO, a UVLO fault is determined to exist. During the VIN UVLO fault, the device sends a single 128-µs pulse on INT, and the STAT and FAULT bits are updated over I 2C. The FAULT bits are not cleared until they are read in from I 2C after the UVLO condition no longer exists.

   OCP 即Over current  protection,   这个是Load swither 限流保护。