BQ2084-V133 Datasheet, PDF (56/64 Pages) Texas Instruments – SBS v1.1-COMPLIANT GAS GAUGE FOR USE WITH THE bq29312

bq2084-V133
SLUS640A – JUNE 2005 – REVISED JUNE 2005
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NR
The NR bit defines whether the bq2084-V133 is to be used with a nonremovable system battery. If set to
indicate a nonremovable system battery there are additional clear conditions for a battery failure due to
overcharge, overcurrent, and overload. The additional conditions besides battery removal (defined as the loss
system present pin going high) are either detection of an opposite current of that that caused the failure or
when AverageCurrent() is less than Clear Fail Current DF 0x61, 0x62 for a time defined by Fault Reset Time
DF 0x130. Also, for a nonremovable battery the charge FET is left on for discharge current failures and the
discharge FET is left on for charge current failures.
0 Removable battery, battery fail conditions cleared by battery removal only.
1 Nonremovable system battery.
CHGFET
The CHGFET bit programs the charge FET to remain on even after a charge terminate condition.
0 The charge FET is turned off after a charge termination condition.
1 The charge FET is turned on after a charge termination condition.
Constants and String Data
Specification Information
Specification Information (DF 0x06-0x07) stores the default value for the SpecificationInfo() function. It is stored
in data flash in the same format as the data returned by the SpecificationInfo().
Manufacture Date
Manufacture Date (DF 0x08-0x09) stores the default value for the ManufactureDate() function. It is stored in data
flash in the same format as the data returned by the ManufactureDate().
Serial Number
Serial Number (DF 0x0a-0x0b) stores the default value for the SerialNumber() function. It is stored in data flash
in the same format as the data returned by the SerialNumber().
Manufacturer Name Data
Manufacturer Name Length (DF 0x0e) stores the length of the desired string that is returned by the
ManufacturerName() function. Locations DF 0x0f-0x19 store the characters for ManufacturerName() in ASCII
code.
Device Name Data
Device Name Length (DF 0x1a) stores the length of the desired string that is returned by the DeviceName()
function. Locations DF 0x1b-0x21 store the characters for DeviceName() in ASCII code.
Device Chemistry Data
Device Chemistry Length (DF 0x22) stores the length of the desired string that is returned by the
DeviceChemistry() function. Locations DF 0x23-0x26 store the characters for DeviceChemistry() in ASCII code.
Manufactuters Data Length
Manufacturers Data Length (DF 0x27) stores the length of the desired number of bytes that is returned by the
ManufacturersData() function. It should be set to 9.
Temperature Limits
The limits described below are extensions to those limits detailed in the safety and charging sections of this data
sheet.
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