BQ28Z560-R1_14 Datasheet, PDF (22/61 Pages) Texas Instruments – Single Cell Li-Ion Battery Gas Gauge

bq28z560-R1
Not Recommended For New Designs
SLUSBD3 – APRIL 2013
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HDQIntEn = Status bit indicating the HDQ interrupt function is active. True when set. Default is 0.
SHUTDOWN = Status bit indicating the bq28z560-R1 is in SHUTDOWN mode. True when set. Default is 0.
HIBERNATE = Status bit indicating a request for entry into HIBERNATE from SLEEP mode has been issued. True when set. Default is
0. Control bit when set will put the bq28z560-R1 into the lower power state of SLEEP mode. It is not possible to monitor
this bit.
FULLSLEEP =
Status bit indicating the bq28z560-R1 is in FULLSLEEP mode. True when set. The state can be detected by monitoring
the power used by the bq28z560-R1 because any communication will automatically clear it.
SLEEP = Status bit indicating the bq28z560-R1 is in SLEEP mode. True when set.
LDMD = Status bit indicating the bq28z560-R1 Impedance Track algorithm using CONSTANT POWER mode. True when set.
Default is 0 (CONSTANT CURRENT mode).
RUP_DIS = Status bit indicating the bq28z560-R1 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 bq28z560-R1 Qmax updates are enabled. True when set.
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
bq28z560-R1 during normal operation and additional features when the device is in access modes, as described
in Table 6.
CNTL FUNCTION
SET_FULLSLEEP
SET_HIBERNATE
CLEAR_HIBERNATE
SET_SHUTDOWN
CLEAR_SHUTDOWN
HOST_DISCONNECT
HOST_CONNECT
Table 6. Control() Subcommands
CNTL DATA
0x0010
0x0011
0x0012
0x0013
0x0014
0x0018
0x0019
SEALED ACCESS
Yes
Yes
Yes
Yes
Yes
Yes
Yes
DESCRIPTION
Sets the [FULLSLEEP] bit in Control Status register to 1
Forces CONTROL_STATUS [HIBERNATE] to 1
Forces CONTROL_STATUS [HIBERNATE] to 0
Forces CONTROL_STATUS [SHUTDOWN] to 1
Forces CONTROL_STATUS [SHUTDOWN] to 0
Forces the DOUT pin low to disable discharge.
Clears DSGFETOFF allowing DOUT to go high if no
other conditions force it low
DEVICE_TYPE: 0x0001
Instructs the gas gauge to return the device type to addresses 0x00/0x01.
FW_VERSION: 0x0002
Instructs the gas gauge to return the firmware version to addresses 0x00/0x01. The bq28z560-R1 firmware
version return is 0x0214.
HW_VERSION: 0x0003
Instructs the gas gauge to return the hardware version to addresses 0x00/0x01. For bq28z560-R1, 0x0060 is
returned. For a firmware upgrade from bq28z560-R1, 0x0000 or 0x0060 is returned.
RESET_DATA: 0x0005
Instructs the gas gauge to return the number of resets performed to addresses 0x00/0x01.
PREV_MACWRITE: 0x0007
Instructs the gas gauge to return the previous command written to addresses 0x00/0x01. The value returned is
limited to less than 0x0020.
CHEM_ID: 0x0008
Instructs the gas gauge to return the chemical identifier for the Impedance Track configuration to addresses
0x00/0x01.
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