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BQ27500 Datasheet, PDF (19/39 Pages) Texas Instruments – System-Side Impedance Track™ Fuel Gauge
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www.ti.com
Class
Configuration
Configuration
Configuration
Configuration
Configuration
Configuration
Configuration
Configuration
Gas Gauging
Gas Gauging
Gas Gauging
Gas Gauging
Gas Gauging
Gas Gauging
Gas Gauging
Subclass
ID
64
64
64
64
68
68
68
68
80
80
80
80
80
80
80
Gas Gauging
81
Gas Gauging
81
Gas Gauging
81
Gas Gauging
81
Gas Gauging
81
Gas Gauging
81
Gas Gauging
82
Gas Gauging
82
Gas Gauging
82
Gas Gauging
82
Gas Gauging
82
Gas Gauging
82
Gas Gauging
82
Gas Gauging
82
Gas Gauging
82
Gas Gauging
82
OCVTables
83
OCVTables
84
OCVTables
85
OCVTables
86
Default Ra Tables
87
Default Ra Tables
88
Rb Tables
89
Rb Tables
90
bq27500
bq27501
System-Side Impedance Track™ Fuel Gauge
SLUS785 – SEPTEMBER 2007
Table 4-7. Data Flash Summary (continued)
Subclass
Registers
Registers
Registers
Registers
Offset
0
2
4
8
Name
Operation Configuration
Pack 0 Voltage(1)
Pack 1 Voltage(1)
Pack V% Range(1)
Data
Type
H2
U2
U2
U1
Min
Value
0x0000
0
0
0
Max
Value
0xffff
4200
4200
100
Default
Value
0x0979
1000
4000
5
Units
–
mV
mV
%
Power
Power
Power
Power
0
Flash Update OK Voltage
I2
7
Sleep Current
I2
16
Bat Low Threshold
I2
18
Hibernate Voltage Threshold U2
0
0
0
2400
4200
100
700
3000
2800
10
100
2550
mV
mA
mAh
mV
IT Cfg
IT Cfg
IT Cfg
IT Cfg
IT Cfg
IT Cfg
IT Cfg
0
Load Select
1
Load Mode
48
Terminate Voltage
53
User Rate-mA
55
User Rate-mW
57
Reserve Cap-mAh
59
Reserve Cap-mWh
U1
0
255
U1
0
255
I2
–32768 32767
I2
0
9000
I2
0
14000
I2
0
9000
I2
0
14000
1
0
3000
0
0
0
0
–
–
mV
mA
10mW
mAh
10mWh
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
I2
0
2000
75
mA
I2
0
2000
75
mA
I2
0
1000
50
mA
U2
0
8191
1800
s
U1
0
255
60
s
U1
0
63
1
s
State
State
State
State
State
State
State
State
State
State
0
IT Enable
1
Application Status
2
Qmax 0
4
Cycle Count 0
6
Update Status 0
7
Qmax 1
9
Cycle Count 1
11
Update Status 1
16
Avg I Last Run
18
Avg P Last Run
H1
0x00
0xff
H1
0x00
0xff
I2
0
32767
U2
0
65535
H1
0x00
0x03
I2
0
32767
U2
0
65535
H1
0x00
0x03
I2
–32768 32767
I2
–32768 32767
0x00
0x00
1500
0
0x00
1500
0
0x00
300
1200
–
–
mAh
–
–
mAh
–
–
mA
mAh
OCVa0 Table
OCVa1Table
OCVb0 Table
OCVb1 Table
0-45
0-45
0-64
0-64
See Note(2)
Def0 Ra
Def1 Ra
0-18
0-18
See Note(2)
Rb0 Table
Rb1 Table
0-18
0-18
See Note(2)
(1) bq27501 only.
(2) Encoded battery profile information created by bqEASY software.
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GENERAL DESCRIPTION
19
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