BQ2063_15 Datasheet, PDF (24/60 Pages) Texas Instruments – SBS v1.1-COMPLIANT Li-ION GAS-GAUGE IC

bq2063
Not Recommended For New Designs
SBS v1.1ĆCOMPLIANT LiĆION GASĆGAUGE IC
WITH PROTECTOR INTERFACE
SLUS468E− MAY 2001 − REVISED APRIL 2002
0x0660 Stop VFC Calibration instructs the bq2063 to abort a VFC calibration procedure. If aborted, the bq2063
disables offset correction. The bq2063 stops calibration within 20 ms of acknowledging the command.
0x0606 Program EEPROM instructs the unsealed bq2063 to connect the SMBus to the EEPROM I2C bus. The
bq2063 applies power to the EEPROM within 900 ms of acknowledging the command. After issuing the program
EEPROM command, the bq2063 monitoring functions are disabled until the I2C bus is disconnected. The
bq2063 disconnects the I2C bus when it detects that the Battery Address 0x16 is sent over the SMBus. The
Battery Address 0x16 to disconnect the I2C bus should not be sent until 10 ms after the last write to the
EEPROM.
0x07e6 Device Revision instructs the bq2063 to return the device revision level to ManufactureAccess( ) so
it may be read.
Purpose: The ManufacturerAccess( ) function provides the system host access to bq2063 functions that are
not defined by the SBD.
SMBus Protocol: Read or Write Word
Input/Output: Word
Example:
The following sequence of actions is an example of how to use the ManufacturerAccess( ) commands efficiently
to take a battery pack that has completed all testing and calibration except for VFC calibration and to make it
ready for shipment in the SEALED state and in low-power storage mode:
1. Complete testing, programming, and calibration with desired final values stored in EEPROM with the SEAL
bit not set. Sending a reset command to the bq2063 during test ensures that RAM values correspond to
the final EEPROM values.
2. If the initial value of RemainingCapacity( ) must be nonzero, the desired value may be written to command
0x26.
3. Issue the Program EEPROM command and set the SEAL bit in EEPROM.
4. Issue the Enable VFC (or Alternate VFC) Calibration command. The bq2063 resets the OCE bit in Pack
Status when calibration begins and sets the bit when calibration successfully completes and the calibration
values have been written to EEPROM.
5. Issue the Enable Low-Power Storage Mode command. This must be done before VFC offset calibration
completes.
6. Issue the SEAL command. This must be done before VFC offset calibration completes.
After VFC calibration completes automatically, the bq2063 saves the VFC offset cancellation values in
EEPROM and then enters the low-power storage mode after about 20 seconds. In addition, the bq2063 is
sealed, allowing access only as defined in Table 2.
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