BQ27510_08 Datasheet, PDF (9/36 Pages) Texas Instruments – System-Side Impedance Track™ Fuel Gauge With Direct Battery Connection

bq27510
www.ti.com.......................................................................................................................................................... SLUS816A – MARCH 2008 – REVISED JUNE 2008
CNTL FUNCTION
RESET_DATA
Reserved
PREV_MACWRITE
CHEM_ID
BOARD_OFFSET
CC_INT_OFFSET
WRITE_CC_OFFSET
SET_HIBERNATE
CLEAR_HIBERNATE
SEALED
IT_ENABLE
IF_CHECKSUM
CAL_MODE
RESET
Table 2. Control( ) Subcommands (continued)
CNTL DATA
0x0005
0x0006
0x0007
0x0008
0x0009
0x000a
0x000b
0x0011
0x0012
0x0020
0x0021
0x0022
0x0040
0x0041
SEALED
ACCESS
No
No
No
Yes
No
No
No
Yes
Yes
No
No
No
No
No
DESCRIPTION
Returns reset data
Not to be used
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
Forces CONTROL_STATUS [HIBERNATE] to 1
Forces CONTROL_STATUS [HIBERNATE] to 0
Places the bq27510 in SEALED access mode
Enables the Impedance Track™ algorithm
Reports the instruction flash checksum
Places the bq27510 in calibration mode
Forces a full reset of the bq27510
CONTROL_STATUS: 0x0000
Instructs the fuel gauge to return status information to control addresses 0x00/0x01. The status word includes the
following information.
High Byte
Low Byte
Table 3. CONTROL_STATUS Bit Definitions
bit7
bit6
bit5
–
FAS
SS
–
HIBERNATE
–
bit4
CSV
SLEEP
bit3
CCA
LDMD
bit2
BCA
RUP_DIS
bit1
–
VOK
bit0
–
QEN
FAS = Status bit indicating the bq27510 is in FULL ACCESS SEALED state. Active when set.
SS = Status bit indicating the bq27510 is in the SEALED State. Active when set.
CSV = Status bit indicating a valid data flash checksum has been generated. Active when set.
CCA = Status bit indicating the bq27510 coulomb counter calibration routine. Active when set.
BCA = Status bit indicating the bq27510 board calibration routine is active. Active when set.
HIBERNATE = Status bit indicating a request for entry into HIBERNATE from SLEEP mode. True when set. Default is 0.
SLEEP = Status bit indicating the bq27510 is in SLEEP mode. True when set.
LDMD = Status bit indicating the bq27510 Impedance Track™ algorithm using constant-power mode. True when set. Default is 0
(constant-current mode).
RUP_DIS = Status bit indicating the bq27510 Ra table updates disabled. True when set
VOK = Status bit indicating cell voltages are OK for Qmax updates. True when set.
QEN = Status bit indicating the bq27510 Qmax updates enabled. True when set.
DEVICE_TYPE: 0x0001
Instructs the fuel gauge to return the device type to addresses 0x00/0x01.
FW_VERSION: 0x0002
Instructs the fuel gauge to return the firmware version to addresses 0x00/0x01.
HW_VERSION: 0x0003
Instructs the fuel gauge to return the hardware version to addresses 0x00/0x01.
Copyright © 2008, Texas Instruments Incorporated
Product Folder Link(s): bq27510
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