BQ77915: bq77915

jishnu ravi

Part Number: BQ77915

i need the spec for undervoltage protection in bq77915, values to be used. and if possible an external cell balancing circuit diagram linked with bq77915

over 6 years ago

0 Matt Sunna over 6 years ago

TI__Guru* 81035 points

Hi Jishnu,

The datasheet shows the undervoltage accuracy in the Electrical Characteristics tables. It is +/-18mV at 25C, and the spec is a little wider over different temperature ranges (see page 7 of the datasheet).

This video about BQ77915 Cell Balancing has an example schematic with external FETs: https://www.youtube.com/watch?v=wewL0oJRBNM

External FETs are needed only if the balancing current needs to be higher than 50 mA.

Best regards,

Matt

Power management

Power management forum

BQ77915: bq77915