BQ27510-G1 Datasheet, PDF (28/39 Pages) Texas Instruments – System-Side Impedance Track™ Fuel Gauge With Direct Battery Connection

bq27510-G1
SLUS927 – APRIL 2009 ..................................................................................................................................................................................................... www.ti.com
DEVICE RESET
Generate Active
RAM checksum
value
Stored
checksum
NORMAL
OPERATION
NO
Do the Checksum
Values Match?
YES
Active RAM
NO
changed ?
Store
checksum
YES
Generate new
checksum value
Re-initialize all
RAM
Figure 3. Partial Reset Flow Diagram
Wake-Up Comparator
The wake up comparator is used to indicate a change in cell current while the bq27510 is in SLEEP mode.
Operation Configuration uses bits [RSNS1–RSNS0] to set the sense resistor selection. Operation
Configuration also uses the [IWAKE] bit to select one of two possible voltage threshold ranges for the given
sense resistor selection. An internal interrupt is generated when the threshold is breached in either charge or
discharge directions. Setting both [RSNS1] and [RSNS0] to 0 disables this feature.
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