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BQ27520-G3 Datasheet, PDF (23/47 Pages) Texas Instruments – System-Side Impedance Track™ Fuel Gauge With Integrated LDO
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bq27520-G3
SLUSAP0 – DECEMBER 2011
Class
Configuration
System Data
Configuration
Configuration
Configuration
Configuration
Configuration
Configuration
Configuration
Configuration
Configuration
Configuration
Configuration
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
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
Subclass
ID
49
57
64
64
64
64
64
64
64
68
68
68
68
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
81
81
81
81
81
81
81
Table 4-7. Data Flash Summary (continued)
Subclass
Discharge
Offset
Name
23 Def Avg PLast Run
Data
Type
I2
Min
Value
-32768
Manufacturer
Info
0–31 Block [0 – 31]
H1
0x00
Registers
Registers
Registers
Registers
Registers
Registers
Registers
0
Operation Configuration
7
SOC Delta
8
I2C Timeout
9
DFWrIndWaitTime
11 OpConfigB
12 OpConfigC
13 Clock Control Register
H2
0x0000
U1
0
U1
0
U2
0
H1
0x00
H1
0x00
H1
0x00
Power
Power
Power
Power
0
Flash Update OK Voltage
4
Sleep Current
13 Hibernate Current
15 Hibernate Voltage
I2
0
I2
0
U2
0
U2
2400
IT Cfg
IT Cfg
IT Cfg
IT Cfg
IT Cfg
IT Cfg
IT Cfg
IT Cfg
IT Cfg
IT Cfg
IT Cfg
IT Cfg
IT Cfg
IT Cfg
IT Cfg
IT Cfg
IT Cfg
IT Cfg
IT Cfg
IT Cfg
IT Cfg
IT Cfg
IT Cfg
0
Load Select
1
Load Mode
21 Max Res Factor
22 Min Res Factor
24 Ra Filter
40
Min % Passed Charge for
Qmax
44 Qmax Filter
45 Terminate Voltage
47 Term V Delta
50 ResRelax Time
54 User Rate-mA
56 User Rate-mW
58 Reserve Cap-mAh
60 Reserve Cap-mWh
65 Min Delta Voltage
67 Max Sim Rate
68 Min Sim Rate
69 Ra MAx Delta
71 Qmax MAx Delta%
72 DeltaV Max dV
74 Max Res Scale
76 Min Res Scale
78 Fast Scale Start SOC
U1
0
U1
0
U1
0
U1
0
U2
0
U1
1
U1
0
I2
–32,768
I2
0
U2
0
I2
–2000
I2
–7200
I2
0
I2
0
I2
–32,000
U1
0
U1
0
U2
0
U1
0
U2
0
U2
0
U2
0
U1
0
Current
Thresholds
Current
Thresholds
Current
Thresholds
Current
Thresholds
Current
Thresholds
Current
Thresholds
Current
Thresholds
0
Dsg Current Threshold
2
Chg Current Threshold
4
Quit Current
6
Dsg Relax Time
8
Chg Relax Time
9
Quit Relax Time
10 Transient Factor Charge
I2
0
I2
0
I2
0
U2
0
U1
0
U1
0
U1
0
Max
Value
32767
0xff
0xffff
25
7
65535
0xff
0xff
0xff
4200
100
700
3000
255
255
255
255
1000
100
255
32,767
4200
65534
–100
–350
9000
14,000
32,000
255
255
65,535
255
65,535
32767
32767
100
2000
2000
1000
8191
255
63
255
Default
Value
-1131
0x00
0x0973
1
4
0
0x4B
0x2C
0x09
2800
10
8
2550
1
0
20
5
500
37
96
3400
200
500
0
0
0
0
0
2
20
44
5
10
5000
200
10
60
75
40
60
60
1
255
Units
mW
–
–
%
num
5μs
–
–
–
mV
mA
mA
mV
–
–
num
num
num
%
num
mV
mV
s
mA
mW
mAh
mWh
mV
C/rate
C/rate
mΩ
%
mV
num
num
%
mA
mA
mA
s
s
s
num
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GENERAL DESCRIPTION
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