BQ27425-G2_14 Datasheet, PDF (11/35 Pages) Texas Instruments – System-Side Impedance Track™ Fuel Gauge With Integrated Sense Resistor

bq27425-G2
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SLUSB23A – OCTOBER 2012 – REVISED FEBRUARY 2013
SET_HIBERNATE: 0x0011
Instructs the fuel gauge to force the CONTROL_STATUS[HIBERNATE] bit to 1. If the necessary conditions are
met, this enables the gauge to enter the HIBERNATE power mode after the transition to SLEEP power state is
detected. The [HIBERNATE] bit is automatically cleared upon exiting from HIBERNATE mode.
CLEAR_HIBERNATE: 0x0012
Instructs the fuel gauge to force the CONTROL_STATUS[HIBERNATE] bit to 0. This prevents the gauge from
entering the HIBERNATE power mode after the transition to SLEEP power state is detected. It can also be used
to force the gauge out of HIBERNATE mode.
SET_CFGUPDATE: 0x0013
Instructs the fuel gauge to set the Flags[CFGUPMODE] bit to 1 and enter CONFIG UPDATE mode. This
command is only available when the fuel gauge is UNSEALED. Note: A SOFT_RESET subcommand is typically
used to exit CONFIG UPDATE mode to resume normal gauging.
SEALED: 0x0020
Instructs the fuel gauge to transition from UNSEALED state to SEALED state. The fuel gauge should always be
set to SEALED state for use in end equipment.
RESET : 0x0041
This command instructs the fuel gauge to perform a full device reset and reinitialize RAM data to the default
values from ROM. The gauge sets the Flags[ITPOR] bit and enters the INITIALIZE mode. Refer to Figure 2. This
command is only available when the fuel gauge is UNSEALED.
SOFT_RESET : 0x0042
This command instructs the fuel gauge to perform a partial (soft) reset from any mode with an OCV
measurement. The Flags[ITPOR, CFGUPMODE] bits are cleared and a resimulation occurs to update
StateOfCharge( ). Refer to Figure 2. This command is only available when the fuel gauge is UNSEALED.
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