BQ2060SS Datasheet, PDF (34/59 Pages) Texas Instruments – SBS V1.1-COMPLIANT GAS GAUGE IC

bq2060
SLUS035E – JANUARY 2000 – REVISED OCTOBER 2005
Units
Range
Granularity
Accuracy
BATTERY MODES
CAPACITY_MODE
bit = 0
mAh
0 to 65,535 mAh
Not applicable
Not applicable
CAPACITY_MODE
bit = 1
10 mWh
0 to 65,535 10 mWh
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DesignVoltage() (0x19); [0x19]
DESCRIPTION
Returns the theoretical voltage of a new pack (mV). The bq2060 sets DesignVoltage() to the value
programmed in Design Voltage EE 0x12–0x13.
PURPOSE
The DesignVoltage() function can be used to give additional information about a particular Smart
Battery’s expected terminal voltage.
SMBus PROTOCOL ReadWord
OUTPUT
Unsigned integer—the battery’s designed terminal voltage in mV
Units: mV
Range: 0 to 65,535 mV
Granularity: not applicable
Accuracy: not applicable
SpecificationInfo() (0x1a); [0x1a]
DESCRIPTION
Returns the version number of the Smart Battery Specification that the battery pack supports, as
well as voltage and current scaling information in a packed unsigned integer. Power scaling is the
product of the voltage scaling times the current scaling. The SpecificationInfo is packed in the
following fashion: (SpecID_H * 0x10 + SpecID_L) + (VScale + IPScale * 0x10) * 0x100.
The bq2060 VScale (voltage scaling) and IPScale (current scaling) should always be set to zero.
The bq2060 sets SpecificationInfo() to the value programmed Specification Information EE
0x14–0x15.
PURPOSE
The SpecificationInfo() function is used by the SMBus Host’s power management system to
determine what information the Smart Battery can provide.
SMBus PROTOCOL ReadWord
OUTPUT
Unsigned integer—packed specification number and scaling information.
FIELD
SpecID_L
SpecID_H
VScale
IPScale
BITS USED
0...3
4...7
8...11
12...15
FORMAT
4-bit binary value
4-bit binary value
4-bit binary value
4-bit binary value
ALLOWABLE VALUES
0–15
0–15
0 (multiplies voltage by 10^ VScale)
0 (multiplies current by 10 ^ IPScale)
ManufactureDate() (0x1b); [0x1b]
DESCRIPTION
This function returns the date the cell pack was manufactured in a packed integer. The date is
packed in the following fashion: (year-1980) * 512 + month * 32 + day. The bq2060 sets
ManufactureDate() to the value programmed in Manufacture Date EE 0x16–0x17.
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