BQ27520-G2 Datasheet, PDF (13/47 Pages) Texas Instruments – System-Side Impedance Track™ Fuel Gauge With Integrated LDO

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bq27520-G2
SLUSAB7A – MARCH 2011 – REVISED AUGUST 2011
4.1.1.1.7 BAT_INSERT: 0X000D
This command is to force the BAT_DET bit to be set when the battery insertion detection is disabled.
When the BIE is set to 0, the battery insertion detection is disabled. The gauge relies on the host to inform
if of the battery insertion with this command to set the BAT_DET bit.
4.1.1.1.8 BAT_REMOVE: 0X000E
This command is to force the BAT_DET bit to be clear when the battery insertion detection is disabled.
When the BIE is set to 0, the battery insertion detection is disabled. The gauge relies on the host to inform
if of the battery removal with this command to clear the BAT_DET bit.
4.1.1.1.9 SET_HIBERNATE: 0x0011
Instructs the fuel gauge to force the CONTROL_STATUS [HIBERNATE] bit to 1. This will allow the gauge
to enter the HIBERNATE power mode after the transition to SLEEP power state is detected. The
[HIBERNATE] bit is automatically cleared upon exiting from HIBERNATE mode.
4.1.1.1.10 CLEAR_HIBERNATE: 0x0012
Instructs the fuel gauge to force the CONTROL_STATUS [HIBERNATE] bit to 0. This prevents the gauge
from entering the HIBERNATE power mode after the transition to the SLEEP power state is detected. It
can also be used to force the gauge out of HIBERNATE mode.
4.1.1.1.11 ENABLE SLEEP+ MODE: 0X0013
Instructs the fuel gauge to set the CONTROL_STATUS [SNOOZE] bit to 1. This will enable the SLEEP+
mode. The gauge will enter SLEEP+ power mode after the transition conditions are meet.
4.1.1.1.12 DISABLE SLEEP+ MODE: 0X0014
Instructs the fuel gauge to set the CONTROL_STATUS [SNOOZE] bit to 0. This will disable the SLEEP+
mode. The gauge will exit from the SLEEP+ power mode after the SNOOZE bit is cleared.
4.1.1.1.13 FACTORY RESTORE: 0X0015
Instructs the fuel gauge to reset learned resistance tables and Qmax values to the default values. If
Operation Configuration B [INDFACRES] is set, SOC_INT is asserted while the restore is in progress.
This command is only available when the fuel gauge is UNSEALED.
4.1.1.1.14 ENABLE_DLOG: 0x0018
Commands the fuel gauge to set the CONTROL_STATUS[DLOGEN] bit to 1, clear the data FIFO, and
begin recording coulomb counter data logging. While in Data Logging Mode, the device will not enter
Sleep mode.
4.1.1.1.15 DISABLE_DLOG: 0x0019
Commands the fuel gauge to clear the CONTROL_STATUS[DLOGEN] bit to 0 and stop recording
coulomb counter data. The previous data stored in the FIFO is not cleared.
4.1.1.1.16 DF_VERSION: 0x001F
Instructs the fuel gauge to return the 16-bit data flash revision code to addresses 0x00/0x01. The code is
stored in Data Flash Version and provides a simple method for the customer to control data flash
revisions. The default DF_VERSION is 0x0000 as configured in data flash.
4.1.1.1.17 SEALED: 0x0020
Instructs the fuel gauge to transition from the UNSEALED state to the SEALED state. The fuel gauge must
always be set to the SEALED state for use in end equipment.
Copyright © 2011, Texas Instruments Incorporated
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GENERAL DESCRIPTION
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