BQ40Z60 EVM default charging voltages

Tony Carter

In the EVM default configuration I noticed that the Standard Temp Charging Voltages are set to 4200mV and the Recommended Temp Voltages are 4100mV. Is this normal for LiIon charging voltage to have this bump in charging voltage when deviating from Rec temperature?

over 8 years ago

0 ThomasCosby over 8 years ago

TI__Guru 73830 points

I am not sure why the charging voltage was changed for the Recommended temperature range setting. I would change it to 4200mV, if that is what you cell supplier recommends.

0 Tony Carter over 8 years ago in reply to ThomasCosby

Intellectual 360 points

ThanksTom, the cells I'm using are 4200 mV, but this brings up the settings based on SLUA750 Application Report. I used 4200 (8400mV Desired Charging voltage) and ended up needing the voltage register to be 254 by setting the "data flash Voltage" to 4139mV. What "data flash Registers need to be corrected. I changed the Rec and Standard Temp Voltages, but do others need to be adjusted as well?

Tony

0 ThomasCosby over 8 years ago in reply to Tony Carter

TI__Guru 73830 points

The Charging Voltage registers will be the only ones that need to be modified.

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BQ40Z60 EVM default charging voltages