BQ78350-R2-DEVICE-FW: BQ78350-R2 Advanced Charge Algorithm

Phil Reid

Prodigy 210 points

Part Number: BQ78350-R2-DEVICE-FW

Why is the default Rec (Recommended?) Temp Charging Voltage 4100mV and the Standard Temp Charging Voltage 4200mV?

My understanding is the jeita standard recommends 4200mV across the range.

As the BQ78350 TRM doesn't document this I've been using the bq40z50-R1 TRM as mentioned on the forum to understand the

new R2 Advanced Algorithm.

over 5 years ago

0 Matt Sunna over 5 years ago

TI__Guru* 81035 points

Hi Phil,

The recommended range settings should come from the cell manufacturer. These are the settings for the best performance in charging their specific cells. The default recommended range typically has a much narrower temperature range. A slightly lower charging voltage can increase the cell life.

There may be better documentation available for the JEITA standard, but this one gives a high level overview of the different parameters. https://home.jeita.or.jp/page_file/20110517171451_cub9MvYFEh.pdf

Best regards,

Matt

Power management

Power management forum

BQ78350-R2-DEVICE-FW: BQ78350-R2 Advanced Charge Algorithm