BQ34Z100 Datasheet, PDF (11/50 Pages) Texas Instruments – Wide Range Fuel Gauge with Impedance Track™ Technology

bq34z100
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CNTL FUNCTION
CURRENT
SEALED
IT_ENABLE
CAL_ENABLE
RESET
EXIT_CAL
ENTER_CAL
OFFSET_CAL
SLUSAU1 – MAY 2012
Table 3. Control() Subcommands (continued)
CNTL DATA
0x0018
0x0020
0x0021
0x002D
0x0041
0x0080
0x0081
0x0082
SEALED ACCESS
Yes
No
No
No
No
No
No
No
DESCRIPTION
Returns the instantaneous current measured by the
gauge
Places the device in SEALED access mode
Enables the Impedance Track algorithm
Toggle calibration mode
Forces a full reset of the bq34z100
Exit calibration mode
Enter calibration mode
Reports internal CC offset in calibration mode
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
Bit 7
—
—
Bit 6
FAS
—
Table 4. CONTROL_STATUS Flags
Bit 5
SS
FULLSLEEP
Bit 4
CALMODE
SLEEP
Bit 3
CCA
LDMD
Bit 2
BCA
RUP_DIS
Bit 1
CSV
VOK
Bit 0
—
QEN
FAS: Status bit indicating the bq34z100 is in FULL ACCESS SEALED state. Active when set.
SS: Status bit indicating the bq34z100 is in the SEALED State. Active when set.
CSV: Status bit indicating a valid data flash checksum has been generated. Active when set.
CALMODE: Status bit indicating the bq34z100 calibration function is active. True when set.
Default is 0.
CCA: Status bit indicating the bq34z100 Coulomb Counter Calibration routine is active. Active
when set.
BCA: Status bit indicating the bq34z100 Board Calibration routine is active. Active when set.
FULLSLEEP: Status bit indicating the bq34z100 is in FULLSLEEP mode. True when set. The state can
only be detected by monitoring the power used by the bq34z100 because any
communication will automatically clear it.
SLEEP: Status bit indicating the bq34z100 is in SLEEP mode. True when set.
LDMD: Status bit indicating the bq34z100 Impedance Track algorithm using constant-power mode.
True when set. Default is 0 (constant-current mode).
RUP_DIS: Status bit indicating the bq34z100 Ra table updates are disabled. True when set.
VOK: Status bit indicating cell voltages are OK for Qmax updates. True when set.
QEN: Status bit indicating the bq34z100 Qmax updates are 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 © 2012, Texas Instruments Incorporated
Product Folder Link(s): bq34z100
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