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BQ24070: Issue with BQ24070 Iterm and time out

Part Number: BQ24070

From my customer:

We have an issue with the Bq24070 I would like to discuss with TI.

 

The charger charges a battery, but it will not terminate on Iterm.

 

Vbat is 4.18V and charge current drops below Iterm. The controller measures the charge current down to 0mA and timeout is activated after 14hr which is longer than expected (normally 10hr).

 

R- Iset1 = 1k+1k. We measure current across the bottom 1k.

 

R-TRM= 100k

 

Iterm shows to be approx. 30 to 40mA on other Units.