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BQ24040電池偵測模式

Other Parts Discussed in Thread: BQ24040

我們應用BQ24040時發現,當TS pin 10k接地,battery 移除時, out 電壓會3.8V~4.2V反覆彈跳.

研讀SPEC後發現這是所謂的電池偵測模式.

我們好奇的是為什麼電池偵測時,電壓要3.8V~4.2V跳動, 是所有TI USB charger的battery detect都這樣嗎?

請幫忙解釋. 謝謝.