Hi TI team:
We found some anomalies when read the current from CC2(0x3A). When we pass the resistive load through the electronic load meter, the real-time value of the current display will exist near A certain value and jump with a fixed 0.06A change.
example: real current is 1A, the value of reading change between these values :0.94/1.00/1.06/1.12
1. The current should not have a regular toggle back and forth phenomenon under the premise of resistive load?
2. Each beat is performed in the unit of 0.06A, 0.06 is any special meaning?
3. We have tried to gradually change the actual on-load current from 0.01 to 0.06, and the BMS read-back current is still 0 and 0.06, but the beating frequency is slightly different, which makes us doubt whether there is a relevant filtering calculation inside;
Our current schematic design is as follows, and the sampling resistance used is 125uΩ :
