BQ76200: arduino code

Chaima Haddoudi

Part Number: BQ76200

helo

i am controlling bq76200 with Arduino but it seems i cant set either CHG or DSH mosfet to work correctly and not at the same time

void enablecharing()

{
digitalWrite(DSHON,LOW);
digitalWrite(CHGON,HIGH);

}
void enabledishcharing()
{
digitalWrite(CHGON,LOW);
digitalWrite(DSHON,HIGH);

}

but i need voltage conditions to do so

could you please help regarding this

thank you

over 4 years ago

0 Matt Sunna over 4 years ago

TI__Guru* 81035 points

Hi Chaima,

The CHG_EN and DSG_EN pins are simple logic inputs, so if you are seeing the correct voltage levels on these pins then your code is okay. I have no context to validate your Arduino code.

If the input voltages are okay on the CHG_EN and DSG_EN pins, then you want to check the CHG and DSG outputs of the BQ76200 to see what is happening. You should follow the detailed design procedure in the BQ76200 datasheet and the document "BQ76200 Beyond the Simple Application Schematic" is also very helpful to debug any issues: https://www.ti.com/lit/an/slua794/slua794.pdf

Best regards,

Matt

0 Chaima Haddoudi over 4 years ago in reply to Matt Sunna

Prodigy 30 points

thank you

the pins are working fine

i tried to make an if Statement based on battery voltage to enable one of the mosfet but it does not work correctly it depends if it is charging or discharging

0 Matt Sunna over 4 years ago in reply to Chaima Haddoudi

TI__Guru* 81035 points

Hi Chaima,

I didn't understand. Is your problem fixed?

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BQ76200: arduino code