Datasheet

Start
Init
(“BAT_GD”
disabled, OCV
taken, “BAT_GD
enabled.)
End
NoBattPresent
-OR- badbatt
(“BAT_GD”
disabled)
BattPresent
SLEEP
NORMAL
Yes
BatteryVolt
Sufficient
toFG?
No
Yes
Batt
removed?
No
Yes
Batt
detected?
No
Bq27500 POR
Batt
detected?
No
Yes
ACorUSB
Present?
Yes
No
IT Operations
(dsg, chg, rlx)
Batt
removed?
Yes
Icc >
I
standby
-OR-
T
r
> 30min
No
Yes
Forced
SLEEP
Mode?
No
Badbatt
detected?
No
Yes
Badbatt
detected?
Yes
No
No
bq27510-G2
SLUS948 –AUGUST 2010 www.ti.com
Figure 2. BAT_LOW/BAT_GD Pin Operation, Based Upon Battery Presence and bq27510-G2 Operating
Mode
TEMPERATURE MEASUREMENT
The bq27510-G2 measures battery temperature via its TS input, in order to supply battery temperature status
information to the fuel gauging algorithm and charger-control sections of the gauge. Alternatively, it can also
measure internal temperature via its on-chip temperature sensor, but only if the [TEMPS] bit of Operation
Configuration register is cleared.
Regardless of which sensor is used for measurement, a system processor can request the current battery
temperature by calling the Temperature( ) function (see Standard Data Commands, for specific information).
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