SLUSBV4B June 2018 – September 2020 BQ40Z80
PRODUCTION DATA
The SMBus clock and data pins have integrated high-voltage ESD protection circuits; however, adding a ESD protection device, TPD1E10B06D (U5 and U6) and series resistor (R50 and R51), provides more robust ESD performance.
The SMBus clock and data lines have an internal pulldown. When the gas gauge senses that both lines are low (such as during removal of the pack), the device performs auto-offset calibration and then goes into SLEEP mode to conserve power.