Dear TI experts,
My customer tests BQ24232HA with their own PCB.
They send me the log file, and I can see the current consumption after charging is complete, during about 1 hour. After 1 hour, no more current consumption is detected.
Could you check the schematic first? and Also review the log file, and advise me why this behavior is happened.
Design requirement
Supply voltage 5[v]
Fast-charge current of app 72.5[mA]
input current Limit 400[mA]
Termination current 0.0025[A]->2.5mA
safety timer duration, Faset charge 7.4[hour]
safety timer duration,precharge 44[min]
precharge current 7.3[mA]
And here is the log file of charging bevavior.
You can see the duration between 09:06:24 and 10:05.58. the current is moving 2.mA and -7.5mA. I want to know this is right operation.
And here are more questions.
1. Is there any limitation for design requirements? (i.e. fast charge current should not less than 50mA.)
2. In the log graph, charging current termination is suddenly moved from 11.01mA to 0mA. Is it right operation? I expected more slow curve.
FYI. This application is only for battery charging. No load is connected.
Please check these issues. Thanks.
Best regards,
Chase