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BQ27520-G2 Datasheet(PDF) 11 Page - Texas Instruments

Part # BQ27520-G2
Description  System-Side Impedance Track Fuel Gauge With Integrated LDO
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

BQ27520-G2 Datasheet(HTML) 11 Page - Texas Instruments

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bq27520-G2
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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.
Table 4-2. Control( ) Subcommands
CNTL
SEALED
CNTL FUNCTION
DESCRIPTION
DATA
ACCESS
CONTROL_STATUS
0x0000
Yes
Reports the status of DF checksum, hibernate, IT, etc.
DEVICE_TYPE
0x0001
Yes
Reports the device type (eg: 0x0520)
FW_VERSION
0x0002
Yes
Reports the firmware version on the device type
PREV_MACWRITE
0x0007
Yes
Returns previous MAC subcommand code
CHEM_ID
0x0008
Yes
Reports the chemical identifier of the Impedance Track
™ configuration
OCV_CMD
0x000c
Yes
Request the gauge to take a OCV measurement
BAT_INSERT
0x000d
Yes
Forces the BAT_DET bit set when the [BIE] bit is 0
BAT_REMOVE
0x000e
Yes
Forces the BAT_DET bit clear when the [BIE] bit is 0
SET_HIBERNATE
0x0011
Yes
Forces CONTROL_STATUS [HIBERNATE] to 1
CLEAR_HIBERNATE
0x0012
Yes
Forces CONTROL_STATUS [HIBERNATE] to 0
SET_SLEEP+
0x0013
Yes
Forces CONTROL_STATUS [SNOOZE] to 1
CLEAR_SLEEP+
0x0014
Yes
Forces CONTROL_STATUS [SNOOZE] to 0
FACTORY_RESTORE
0x0015
No
Forces a Factory Restore of learned resistance and Qmax to defaults
ENABLE_DLOG
0x0018
Yes
Commands the device to start coulomb counter Data Logging Mode.
DISABLE_DLOG
0x0019
Yes
Commands the device to stop Data Logging Mode.
DF_VERSION
0x001F
Yes
Returns theData Flash Versioncode
SEALED
0x0020
No
Places the bq27520-G2 in SEALED access mode
IT_ENABLE
0x0021
No
Enables the Impedance Track
™ algorithm
IT_DISABLE
0x0023
No
Disables the Impedance Track
™ algorithm
RESET
0x0041
No
Forces a full reset of the bq27520-G2
Copyright
© 2011, Texas Instruments Incorporated
GENERAL DESCRIPTION
11
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