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3串锂电池的充电路目前有什么方案?

Other Parts Discussed in Thread: BQ25700A, BQ25703A

要求:

1. 3串锂电池3.6~4.2V

2. 充电电流800ma{受限于电源)

3. 放电电流约500ma

4. 充电电源12V

5. 工作方式:主要是市电供电,电池作为后备电源。当市电断开后,能迅速切换电池供电。