TI中文支持网Part Number:BQ28Z610-R1
关于BQ28Z610-R1短路烧MOS问题，怎么解决？
1,电芯容量11000mAh,总电压8.9V
2.MOS型号：AOC3870C*4
Star Xu：
您好,电路方便发过来看一下吗?
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Star Xu：
您好 ，请参考下面内容
There could be many causes of electronics failures, but for a short circuit in a battery the following are some possible causes to consider and test:
The FETs are not commanded off and are damaged
The FETs turn off too slowly and are damaged
The FETs turn off too quickly and the inductive spike damages the FETs or the BMS circuitry
Parallel FETs oscillate during turn off and are damaged.Please reference to this FAQ for SCD debugging. How to debug FET failure resulting from short-circuit testing
I am inclined to say this behavior is due to bullet point number 4 above. The gate of each FET requires a small gate resistance to avoid oscillations. Please also reference to this app note – Tips for Successfully Paralleling Power MOSFETs
