BQ27425-G1 Datasheet, PDF (18/32 Pages) Texas Instruments – System-Side Impedance Track™ Fuel Gauge With Integrated Sense Resistor

bq27425-G1
SLUSAI6 – NOVEMBER 2011
www.ti.com
BLOCK DATA SUMMARY
Table 7 summarizes the data blocks available to the user, including their default, minimum, and maximum
values.
Class
Configuration
[RAM]
System Data
[NVM]
Gas Gauging
[NVM/RAM]
Ra Tables
[NVM/RAM]
SubClass
ID
2
36
49
68
58
80
81
82
88
SubClass
Safety [RAM]
Charge
Termination
[RAM]
Discharge
[RAM]
Power [RAM]
Manufacturer
Info [NVM]
IT Cfg [RAM]
Current
Thresholds
[RAM]
State [NVM]
R_a [NVM]
Table 7. Block Data Summary
Offset
0
2
4
0
2
3
4
5
6
0
1
2
3
9
11
0-11
Name
Over Temp
Under Temp
Temp Hys
Min Taper Capacity
Current Taper
Window
TCA Set %
TCA Clear %
FC Set %
FC Clear %
SOC1 Set Threshold
SOC1 Clear
Threshold
SOCF Set Threshold
SOCF Clear
Threshold
Hibernate I
Hibernate V
Block A 0-11
Data
Type
I2
I2
U1
I2
U1
I1
I1
I1
I1
U1
U1
U1
U1
I2
I2
H1
Min
-1200
-1200
0
0
0
-1
-1
-1
-1
0
0
0
0
0
2400
0x0
41
43
45
0
2
4
3
5
12
14
18
30
32
34
0 - 28
User Rate-mA
User Rate-mW
Reserve Cap-mWh
Dsg Current
Threshold
Chg Current
Threshold
Quit Current
Reserve Cap-mAh
Op Config
Design Capacity
Design Energy
Terminate Voltage
Taper Current
Taper Voltage
Sleep Current
Cell0 R_a 0-14
I2 2000
I2 3000
I2 0
I2 0
I2 0
I2 0
I2 0
H2 0x0000
I2 0
I2 0
I2 2800
I2 0
I2 0
I2 0
I2 Table
89
R_a [RAM] 0 - 28 Cell0 R_a 0-14
I2 Table
Max
1200
1200
255
1000
60
Default
550
0
50
25
40
Unit
(EVSW Unit)
0.1°C
0.1°C
0.1°C
mAh
mV
100
99
%
100
95
%
100
100
%
100
98
%
255
10
%
255
15
%
255
2
%
255
5
%
700
3
mA
3000
2550
mV
0xff
0x0
-
9000
0
14000 0
14000 0
2000
167
mV
CentiW
cWattHour
mA
2000
133
mA
1000
9000
0xFFFF
32767
32767
3700
1000
5000
100
Table
250
0
0x01F8
1340
4960
3200
75
4100
10
Table
Table
Table
mA
mAh
Hex
mAh
mWh
mV
mA
mV
mA
2^–10Ω
(num)
2^–10Ω
(num)
18
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