TI中文支持网Other Parts Discussed in Thread:BQ24780S, BQ25713, BQ25713B
笔记本电路双电池设计，需要使用充放电芯片，主电池选用BQ24780s和备用电池选用BQ24780s，电池都是4串3并，
使用两颗BQ24780S，EC上有两组SMBUS，每个SMBUS控制一路BQ24780S,
请问是否有两颗充放电芯片是否有地址冲突？
选用BQ24780s两颗是否可行？
是否有新方案推荐？
Star Xu：
您好，正在查询，稍后回复。
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Star Xu：
您好，请参考下面的内容
The BQ24780S operates only as a slave device with the address 0x12H. There are 3 options to avoid a potential SMBus address conflict between the two BQ24780S chargers:
Have two separate SMBus communication buses to control each BQ24780S charger independently. You mentioned that the EC has two sets of SMBus communication lines, so this solution should work for the customer's application.
Use an SMBus mux
Use the BQ25713 and the BQ25713B. These two chargers are identical, but they have different I2C addresses for more convenient dual charger operation.
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Donald Trump1：
请问双电池笔电的方案，EC通过2个SMBUS控制两颗BQ24780S，当同时插入两块电池时，BQ24780S同时输出12V的电是否需要在每个BQ24780S处加二极管做防倒灌或者NMOS设计12V的开关让EC来控制？TI是否有双电池的参考设计电路供参考，谢谢
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Star Xu：
您好，我们没有参考设计可为两个电池组并连充电。
只有两个充电管理芯片级联的参考设计。
www.ti.com/…/TIDA-00590
