BQ27505-J3 Datasheet, PDF (11/44 Pages) Texas Instruments – System-Side Impedance Track™ Fuel Gauge

Not Recommended for New Designs
bq27505-J3
www.ti.com
SLUS986A – OCTOBER 2009 – REVISED FEBRUARY 2010
4.1.1.1 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 bq27505 during normal operation and additional features when the bq27505 is in different
access modes, as described in Table 4-2.
CNTL FUNCTION
CONTROL_STATUS
DEVICE_TYPE
FW_VERSION
HW_VERSION
DF_CHECKSUM
PREV_MACWRITE
CHEM_ID
BOARD_OFFSET
CC_INT_OFFSET
WRITE_CC_OFFSET
OCV_CMD
BAT_INSERT
BAT_REMOVE
SET_HIBERNATE
CLEAR_HIBERNATE
SET_SLEEP+
CLEAR_SLEEP+
SEALED
IT_ENABLE
IT_DISABLE
CAL_MODE
RESET
Table 4-2. Control( ) Subcommands
CNTL
DATA
0x0000
0x0001
0x0002
0x0003
0x0004
0x0007
0x0008
0x0009
0x000a
0x000b
0x000c
0x000d
0x000e
0x0011
0x0012
0x0013
0x0014
0x0020
0x0021
0x0023
0x0040
0x0041
SEALED
ACCESS
Yes
Yes
Yes
Yes
No
Yes
Yes
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
DESCRIPTION
Reports the status of DF checksum, hibernate, IT, etc.
Reports the device type (eg: bq27505)
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 previous MAC command code
Reports the chemical identifier of the Impedance Track™ configuration
Forces the device to measure and store the board offset
Forces the device to measure the internal CC offset
Forces the device to store the internal CC offset
Request the gauge to take a OCV measurement
Forces the BAT_DET bit set when the [BIE] bit is 0
Forces the BAT_DET bit clear when the [BIE] bit is 0
Forces CONTROL_STATUS [HIBERNATE] to 1
Forces CONTROL_STATUS [HIBERNATE] to 0
Forces CONTROL_STATUS [SNOOZE] to 1
Forces CONTROL_STATUS [SNOOZE] to 0
Places the bq27505 in SEALED access mode
Enables the Impedance Track™ algorithm
Disables the Impedance Track™ algorithm
Places the bq27505 in calibration mode
Forces a full reset of the bq27505
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GENERAL DESCRIPTION
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