BQ2060A_15 Datasheet, PDF (6/61 Pages) Texas Instruments – SBS v1.1-Compliant Gas Gauge IC

bq2060A
SLUS500D – OCTOBER 2001 – REVISED OCTOBER 2011
SMBC
SMBD
T_SU:STA
T_SU:STO
T_HD:STA
T_LOW
T_SU:DAT
T_BUF
Figure 1. SMBus Timing Data
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T_HIGH
T_HD:DAT
Figure 2. HDQ16 Break Timing
Figure 3. HDQ16 Host to bq2060A
Figure 4. HDQ16 bq2060A to Host
FUNCTIONAL DESCRIPTION
General Operation
The bq2060A determines battery capacity by monitoring the amount of charge input or removed from a
rechargeable battery. In addition to measuring charge and discharge, the bq2060A measures battery voltage,
temperature, and current, estimates battery self-discharge, and monitors the battery for low-voltage thresholds.
The bq2060A measures charge and discharge activity by monitoring the voltage across a small-value series
sense resistor between the battery negative terminal and the negative terminal of the battery pack. The available
battery charge is determined by monitoring this voltage and correcting the measurement for environmental and
operating conditions.
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