BQ27520-G3 Datasheet, PDF (24/47 Pages) Texas Instruments – System-Side Impedance Track™ Fuel Gauge With Integrated LDO

bq27520-G3
SLUSAP0 – DECEMBER 2011
www.ti.com
Class
Gas Gauging
Gas Gauging
Gas Gauging
Gas Gauging
Gas Gauging
Gas Gauging
Gas Gauging
Gas Gauging
Gas Gauging
Gas Gauging
Gas Gauging
Gas Gauging
Gas Gauging
Gas Gauging
Gas Gauging
Gas Gauging
Gas Gauging
OCV Table
OCV Table
OCV Table
OCV Table
OCV Table
OCV Table
Default Ra
Default Ra
Default Ra
Default Ra
Default Ra
Default Ra
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Calibration
Calibration
Calibration
Table 4-7. Data Flash Summary (continued)
Subclass
ID
81
81
Subclass
Current
Thresholds
Current
Thresholds
Offset
Name
11 Transient Factor Discharge
12 Max IR Correct
Data
Type
U1
U2
Min
Value
0
0
82
State
0
IT Enable
82
State
1
Application Status
82
State
2
Qmax 0
82
State
4
Cycle Count 0
82
State
6
Update Status 0
82
State
7
Qmax 1
82
State
9
Cycle Count 1
82
State
11 Update Status 1
82
State
12 Cell0 Chg DOD at EoC
82
State
14 Cell1 Chg DOD at EoC
82
State
16 Avg I Last Run
82
State
18 Avg P Last Run
82
State
20 Delta Voltage
82
State
24 T Rise
82
State
26 T Time Constant
H1
0x00
H1
0x00
I2
0
U2
0
H1
0x00
I2
0
U2
0
H1
0x00
I2
0
I2
0
I2
–32,768
I2
–32,768
I2
–32,768
U2
0
U2
0
83
OCVa0 Table
0
Chem ID 0
83
OCVa0 Table
2
Qmax Cell 0
83
OCVa0 Table
4
Update Status
H2
0x0
I2
0
H1
0x00
84
OCVa1 Table
0
Chem ID 1
84
OCVa1 Table
2
Qmax Cell 1
84
OCVa1 Table
4
Update Status 1
H2
0x0
I2
0
H1
0x00
87
Def0 Ra
0
Def0 Ra Status
87
Def0 Ra
1
Def0 Ra Flag
87
Def0 Ra
2-18 Def0 Ra
H1
0x00
H1
0x00
H1
0x00
88
Def1 Ra
0
Def1 Ra Status
88
Def1 Ra
1
Def1 Ra Flag
88
Def1 Ra
2-18 Def1 Ra
H1
0x00
H1
0x00
H1
0x00
91
Pack0 Ra
0
Pack0 Ra Status
91
Pack0 Ra
1
Pack0 Ra Flag
91
Pack0 Ra
2-18 Pack0 Ra
H1
0x00
H1
0x00
H1
0x00
92
Pack1 Ra
0
Pack1 Ra Status
92
Pack1 Ra
1
Pack1 Ra Flag
92
Pack1 Ra
2-18 Pack1 Ra
H1
0x00
H1
0x00
H1
0x00
93
Pack0 Rax
0
Pack0 Rax Status
93
Pack0 Rax
1
Pack0 Rax Flag
93
Pack0 Rax
2-18 Pack0 Rax
H1
0x00
H1
0x00
H1
0x00
94
Pack1 Rax
0
Pack1 Rax Status
94
Pack1 Rax
1
Pack1 Rax Flag
94
Pack1 Rax
2-18 Pack1 Rax
104
Data
104
Data
104
Data
0
CC Gain
4
CC Delta
8
CC Offset
H1
H1
H1
F4 ⁽²⁾
F4 ⁽²⁾
I2
0x00
0x00
0x00
0.1
4.7
–2.4
Max
Value
255
1,000
0x03
0xff
32,767
65,535
0x03
32767
65,535
0x03
16384
16384
32,767
32,767
32,768
65535
65535
0xffff
32767
0x03
0xffff
32767
0x03
0x00
0x00
0xff
0x00
0x00
0xff
0x00
0x00
0xff
0x00
0x00
0xff
0x00
0x00
0xff
0x00
0x00
0xff
47
188
2.4
Default
Value
255
400
0x00
0x00
1000
0
0x00
1000
0
0x00
0
0
–299
–1131
2
2
1000
0x100
1000
0x00
0x100
1000
0x00
0xff
0x55
-
0xff
0x55
-
0xff
0x55
-
0xff
0x55
-
0xff
0x55
-
0xff
0x55
-
10 ⁽³⁾
10 ⁽³⁾
–0.58 ⁽³⁾
Units
num
mV
–
–
mAh
–
–
mAh
Count
–
–
–
mA
mAh
mV
num
num
num
mAh
-
num
mAh
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
mohm
mohm
mV
(2) Not IEEE floating point.
(3) Display as the value EVSW displayed. Data Flash value is different.
24
GENERAL DESCRIPTION
Submit Documentation Feedback
Product Folder Link(s) :bq27520-G3
Copyright © 2011, Texas Instruments Incorporated