BQ27541-V200_17 Datasheet, PDF (10/46 Pages) Texas Instruments – Single Cell Li-Ion Battery Fuel Gauge for Battery Pack Integration

bq27541-V200
Not Recommended for New Designs
SLUSA11B – FEBRUARY 2010 – REVISED SEPTEMBER 2013
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Control( ): 0x00/0x01
Issuing a Control( ) command requires a subsequent 2-byte subcommand. These additional bytes specify the
particular control function desired. The Control( ) command allows the system to control specific features of the
bq27541 during normal operation and additional features when the bq27541 is in different access modes, as
described in Table 2.
CNTL FUNCTION
CONTROL_STATUS
DEVICE_TYPE
FW_VERSION
HW_VERSION
DF_CHECKSUM
RESET_DATA
Reserved
PREV_MACWRITE
CHEM_ID
DF_VERSION
SET_FULLSLEEP
SET_HIBERNATE
CLEAR_HIBERNATE
SET_SHUTDOWN
CLEAR_SHUTDOWN
SET_HDQINTEN
CLEAR_HDQINTEN
SEALED
IT_ENABLE
CAL_MODE
RESET
CNTL DATA
0x0000
0x0001
0x0002
0x0003
0x0004
0x0005
0x0006
0x0007
0x0008
0x000C
0x0010
0x0011
0x0012
0x0013
0x0014
0x0015
0x0016
0x0020
0x0021
0x0040
0x0041
Table 2. Control( ) Subcommands
SEALED
ACCESS
Yes
Yes
Yes
Yes
No
No
No
No
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
DESCRIPTION
Reports the status of DF Checksum, Hibernate, IT, etc.
Reports the device type of 0x0541 (indicating bq27541)
Reports the firmware version on the device type
Reports the hardware version of the device type
Enables a data flash checksum to be generated and reports on a read
Returns reset data
Not to be used
Returns previous MAC command code
Reports the chemical identifier of the Impedance Track™ configuration
Reports the data flash version on the device
Set the [FullSleep] bit in Control Status register to 1
Forces CONTROL_STATUS [HIBERNATE] to 1
Forces CONTROL_STATUS [HIBERNATE] to 0
Enables the SE pin to change state
Disables the SE pin from changing state
Forces CONTROL_STATUS [HDQIntEn] to 1
Forces CONTROL_STATUS [HDQIntEn] to 0
Places the bq27541 is SEALED access mode
Enables the Impedance Track™ algorithm
Places the bq27541 in calibration mode
Forces a full reset of the bq27541
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