BQ2060SS Datasheet, PDF (36/59 Pages) Texas Instruments – SBS V1.1-COMPLIANT GAS GAUGE IC

bq2060
SLUS035E – JANUARY 2000 – REVISED OCTOBER 2005
www.ti.com
DeviceChemistry() (0x22); [0x30-0x32]
DESCRIPTION
This function returns a character string that contains the battery’s chemistry. For example, the
DeviceChemistry() function returns NiMH, the battery pack would contain nickel metal hydride cells.
The bq2060 sets DeviceChemistry() to the value programmed in Device Chemistry EE 0x40–0x44.
PURPOSE
The DeviceChemistry() function gives cell chemistry information for use by charging systems. The
bq2060 does not use DeviceChemisty() values for internal charge control or fuel gauging.
SMBus PROTOCOL Read Block
OUTPUT
Output: String—character string with maximum length of 4 characters (4+length byte).
NOTE:
The following is a partial list of chemistries and their expected abbreviations. These
abbreviations are not case sensitive.
Lead acid
Lithium ion
Nickel cadmium
Nickel metal hydride
Nickel zinc
Rechargeable alkaline-manganese
Zinc air
PbAc
LION
NiCd
NiMH
NiZn
RAM
ZnAr
ManufacturerData() (0x23); [0x38–0x3a]
DESCRIPTION
This function allows access to the manufacturer data contained in the battery (data). The bq2060
stores seven critical operating parameters in this data area.
PURPOSE
The ManufacturerData() function may be used to access the manufacturer’s data area. The data
fields of this command reflect the programming of five critical EEPROM locations and can be used
to facilitate evaluation bq2060 under various programming sets. The ManufacturerData() function
returns the following information in order: Control Mode, Digital Filter, Self-Discharge Rate, Battery
Low %, Near Full, and the pending EDV threshold voltage (low byte and high byte.)
SMBus PROTOCOL Read Block
Pack Status and Pack Configuration (0x2f); [0x2f]
DESCRIPTION
This function returns the Pack Status and Pack Configuration registers. The Pack Status register
contains number of status bits relating to bq2060 operation. The Pack Status register is the least
significant byte of the word. The Pack Configuration register is the most significant byte of the word.
The byte reflects how the bq2060 is configured as defined by the value programmed in Pack
Configuration in EE 0x3f.
The Pack Status Register consists of the following bits:
b7
OCE
b6
EDV2
b5
EINT
b4
VDQ
b3
COK
b2
DOK
b1
CVOK
b0
CVUV
36