BQ27520-G2 Datasheet, PDF (11/47 Pages) Texas Instruments – System-Side Impedance Track™ Fuel Gauge With Integrated LDO

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bq27520-G2
SLUSAB7A – MARCH 2011 – REVISED AUGUST 2011
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 bq27520-G2 during normal operation and additional features when the device is in different
access modes, as described in Table 4-2.
CNTL FUNCTION
CONTROL_STATUS
DEVICE_TYPE
FW_VERSION
PREV_MACWRITE
CHEM_ID
OCV_CMD
BAT_INSERT
BAT_REMOVE
SET_HIBERNATE
CLEAR_HIBERNATE
SET_SLEEP+
CLEAR_SLEEP+
FACTORY_RESTORE
ENABLE_DLOG
DISABLE_DLOG
DF_VERSION
SEALED
IT_ENABLE
IT_DISABLE
RESET
Table 4-2. Control( ) Subcommands
CNTL
DATA
0x0000
0x0001
0x0002
0x0007
0x0008
0x000c
0x000d
0x000e
0x0011
0x0012
0x0013
0x0014
0x0015
0x0018
0x0019
0x001F
0x0020
0x0021
0x0023
0x0041
SEALED
ACCESS
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
No
No
No
No
DESCRIPTION
Reports the status of DF checksum, hibernate, IT, etc.
Reports the device type (eg: 0x0520)
Reports the firmware version on the device type
Returns previous MAC subcommand code
Reports the chemical identifier of the Impedance Track™ configuration
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
Forces a Factory Restore of learned resistance and Qmax to defaults
Commands the device to start coulomb counter Data Logging Mode.
Commands the device to stop Data Logging Mode.
Returns theData Flash Versioncode
Places the bq27520-G2 in SEALED access mode
Enables the Impedance Track™ algorithm
Disables the Impedance Track™ algorithm
Forces a full reset of the bq27520-G2
Copyright © 2011, Texas Instruments Incorporated
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GENERAL DESCRIPTION
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