BQ25703A: Regarding regn pin

Vinith Nayaka

Part Number: BQ25703A

Hi sir/madam,

I have used this chip only to charge the battery with no system but regn value it is showing as 1.1v what may be the reason...

over 4 years ago

0 Kedar Manishankar over 4 years ago

TI__Mastermind 24075 points

Hi Vinith,

REGN has a load limit of 60mA. Your IC could also be damaged. Remove and replace the IC.

0 Vinith Nayaka over 4 years ago in reply to Kedar Manishankar

Intellectual 440 points

thank you for the reply sir,

at the output of the circuit i am getting constant 13.4 even if i change the value in maxcharge voltage what may be the reason..and gate of mosfets are not switching....

0 Vinith Nayaka over 4 years ago in reply to Vinith Nayaka

Intellectual 440 points

and sir in my circuit I don't have a system ,vsys is connected to output of the buck boost circuit .

0 Kedar Manishankar over 4 years ago in reply to Vinith Nayaka

TI__Mastermind 24075 points

Hi Vinith,

What is the status of ChargeStatusRegister? You could be running into a fault condition that is disabling the charger.

0 Vinith Nayaka over 4 years ago in reply to Kedar Manishankar

Intellectual 440 points

sir the values are 00h for both the registors

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BQ25703A: Regarding regn pin