BQ2092_15 Datasheet, PDF (22/30 Pages) Texas Instruments – Gas Gauge IC with SMBus-Like Interface

Obsolete Device
bq2092
Table 9. Example Register Contents (Continued)
EEPROM
EEPROM
Address Hex Contents
Low
Description Byte
Hold-off
Timer/
0x1f
∆Time
Charge
Cycle
Count
0x20
Maintenance
Charge
0x22
Current
Reserved 0x24
Design
Voltage
0x32
Specification
Information
0x34
Manufacturer
Date
0x36
High
Byte
0x21
0x23
0x31
0x33
0x35
0x37
Low
Byte
07
00
64
30
00
a1
High
Byte
00
00
2a
00
20
Example
Values
320 s hold-off
180 s ∆time
Notes
Hold-off time is 20 s ∗ the two’s complement of the
upper nibble value. ∆T is 20 s ∗ the two’s comple-
ment of the lower nibble value.
0
This field contains the charge cycle count and should
be set to zero for a new battery.
100mA
This field contains the desired maintenance current
after fast charge termination by the bq2092.
10800mV This is nominal battery pack voltage.
This is the default value for this register.
May 1, 1996 = Packed per the ManufactureDate description, which
8353
represents May 1, 1996 in this example.
Table 10. Example Register Contents (String Data)
String
0x 0x 0x 0x 0x 0x 0x 0x 0x 0x 0x 0x
Description Address X0 X1 X2 X3 X4 X5 X6 X7 X8 X9 Xa Xb-Xf
Reserved
0x38-
0x3f
00
00
00
00
00
00
00
00
00
00
00 00-00
Manufacturer's 0x40-
Name
0x4f
09
42
B
45
E
4e
N
43
C
48
H
4d
M
41
A
52
R
51
Q
00 00-00
Device Name
0x50-
0x5f
08
42
B
51
Q
32
2
30
0
39
9
32
2
41
A
33
3
31
1
31
1
00-00
Chemistry
0x60-
0x6f
04
4e
N
69
I
4d
M
48
H
00
00
00
00
00
00 00-00
Manufacturer's 0x70-
Data
0x7f
04
44
D
52
R
31
1
35
5
00
00
00
00
00
00 00-00
22