你好,请问MOS打开 和关闭的时候,截图 所示电路是怎样工作的?
Star Xu:
the chg and dsg pin are driven by a chg pump that will maintain the drive at 10V greater than the PACK voltage to provide FET turn on.At >3.1V, power input switches from VCC to BAT for the gauge.
请参考数据手册6.18 Electrical Characteristics: CHG, DSG FET Drive
6.6 Electrical Characteristics: Power Supply Control
www.ti.com.cn/…/bq4050.pdf
engineerxie:
回复 Star Xu:
事实上我想知道,CHG,DSG关闭的时候,分别下拉到哪里?
Star Xu:
回复 engineerxie:
非常抱歉,数据手册上没有找到更详细的的CHG,DSG Functional Block说明