BQ25703A: bq25703a PIN

Belhaj ltaief Samir

Part Number: BQ25703A

for pins ILIM_HIZ and CELL_BATPRESZ is used with a voltage divider with VDDA.
can I use 3.3v instead of VDDA

over 6 years ago

0 Joel Hernandez II over 6 years ago

TI__Mastermind 25800 points

Hey Belhaj,

The ILIM_HIZ pin can have a voltage divider network from any voltage rail, given that the ILIM_HIZ voltage is set to a value between 1.2V and 4V; whatever is required to get your desired external input current limit.

CELL_BATPRESZ must be connected with a resistor divider biased from VDDA.

Regards,
Joel H

0 Belhaj ltaief Samir over 6 years ago in reply to Joel Hernandez II

Intellectual 380 points

Hi ,Joel

For the ILIM_HIZ i can use a resistor divider with 3.3V

like this

0 Belhaj ltaief Samir over 6 years ago in reply to Belhaj ltaief Samir

Intellectual 380 points

????

0 Joel Hernandez II over 6 years ago in reply to Belhaj ltaief Samir

TI__Mastermind 25800 points

Yes Belhaj.

If you have further questions about the implementation of those pin, I will refer you to both the BQ25703AEVM for details on schematic implementation and the BQ25703A datasheet for features and functional descriptions of the charger. Please read those in parallel to your design work to get more familiar with the device.

Regards,
Joel H

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BQ25703A: bq25703a PIN