BQ25172：Vout_OVP:1.7V

Tom Hong

Part Number: BQ25172

Tool/software:

Overcharging will affect battery life.
NiMH battery suppliers recommend that overcharging be defined as charging above 1.5V.
BQ25172 datasheet: Vout_OVP: 1.7V.
Does TI have any other suggestions for this part?

7 months ago

0 Bill Johns 7 months ago

TI__Guru* 75806 points

Hello Tom

Tom Hong said:
Does TI have any other suggestions for this part?

We would need to look at switching charger. What is the battery pack configuration?

0 Tom Hong 7 months ago in reply to Bill Johns

Prodigy 40 points

What is the battery pack configuration? 2 series 2 parallel。

Can this problem be improved by using Vout_ovp_tscool?

What is TI's Vout_ovp testing method?

+1 Bill Johns 7 months ago in reply to Tom Hong

TI__Guru* 75806 points

Hi Tom

If you do not require the TS function it could be configured to COOL range using a resistor vs NTC. To give you a 1.5V OVP setting.

Tom Hong said:
What is TI's Vout_ovp testing method?

Unit will monitor the voltage at OUT, if it exceeds OVP threshold charge is suspended until voltage decreases.

Power management

Power management forum

BQ25172：Vout_OVP:1.7V