BQ2060A_15 Datasheet, PDF (36/61 Pages) Texas Instruments – SBS v1.1-Compliant Gas Gauge IC

bq2060A
SLUS500D – OCTOBER 2001 – REVISED OCTOBER 2011
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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 bq2060A VScale (voltage scaling) and IPScale (current scaling) should always be set to zero. The bq2060A
sets SpecificationInfo() to the value programmed in Specification Information EE 0x14–0x15.
Purpose: The SpecificationInfo() function is used by the SMBus host power-management system to determine
what information the Smart Battery can provide.
SMBus Protocol: Read Word
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 bq2060A sets ManufactureDate()
to the value programmed in Manufacture Date EE 0x16–0x17.
Purpose: The ManufactureDate() provides the system with information that can be used to uniquely identify a
particular battery pack when used with SerialNumber().
SMBus Protocol: Read Word
Output:
Unsigned integer—packed date of manufacture.
FIELD
Day
Month
Year
BITS
USED
0...4
5...8
9...15
FORMAT
5-bit binary value
4-bit binary value
7-bit binary value
ALLOWABLE VALUES
0–31 (corresponds to date)
1–12 (corresponds to month number)
0–127 (corresponds to year biased by 1980)
SerialNumber() (0x1c); [0x1c]
Description: This function is used to return a serial number. This number, when combined with the
ManufacturerName(), the DeviceName(), and the ManufactureDate(), uniquely identifies the battery (unsigned
integer). The bq2060A sets SerialNumber() to the value programmed in Serial Number EE 0x18–0x19.
Purpose: The SerialNumber() function can be used to identify a particular battery. This may be important in
systems that are powered by multiple batteries where the system can log information about each battery that it
encounters.
SMBus Protocol: Read Word
Output: Unsigned integer
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