BQ35100 Datasheet, PDF (15/26 Pages) Texas Instruments – Lithium Primary Battery Fuel Gauge

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Device Functional Modes (continued)
Systems wants to
begin monitoring
Host sets GE High
Device powers up
Take initial
measurements and
check for warnings
Set INITCOMP= 1
Startup Phase
bq35100
SLUSCM6A – JUNE 2016 – REVISED JULY 2016
KEY:
GE = GAUGE ENABLE Pin
RX ‘START’ CMD
NO
from Host
YES
Waiting Phase
Device OK to
power Down
NO ^{Update Discharge}
Is GMSEL= 10
Accumulation from
Coulomb Counter
YES
Update Voltage and
Current with128 x
8ms conversions
Update
Temperature
Update Voltage and
Temperature
Check for Warnings
and update status
Execute Lifetime
Checks
Active
Phase
NO
RX ‘STOP’ CMD
from Host
YES
Update Lifetime DF
Execute End of
Service detection
algorithm and
update status
YES
Are Lifetime
Set G_DONE = 1
updates
NO
Enabled?
Write Accumulated
data and status to
DF
YES
Are DF updates
Enabled?
NO
Figure 12. Operational Flow
YES
Update Voltage
Is GMSEL= 10
NO
Data Update
Phase
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