BQ20Z70 Datasheet, PDF (18/22 Pages) Texas Instruments – SBS 1.1-COMPLIANT GAS GAUGE ENABLED WITH IMPEDANCE TRACK™ TECHNOLOGY FOR USE WITH THE bq29330

bq20z70
SLUS686A – NOVEMBER 2005 – REVISED JUNE 2006
www.ti.com
Class
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
PF Status
PF Status
Calibration
Calibration
Calibration
Calibration
Calibration
Calibration
Calibration
Calibration
Calibration
Calibration
Calibration
Calibration
Calibration
Calibration
Calibration
Calibration
Calibration
Calibration
Calibration
Calibration
Calibration
Calibration
Calibration
Calibration
Calibration
Calibration
Calibration
Calibration
Calibration
Calibration
Calibration
Calibration
Calibration
Subclass
ID
95
95
95
95
95
95
95
95
95
95
95
96
96
104
104
104
104
104
104
104
104
104
105
105
105
105
105
105
105
105
105
106
106
106
106
106
106
106
106
106
106
106
106
107
107
107
Table 3. DATAFLASH VALUES (continued)
Subclass
Offset Name
R_a3x
10
R_a3x
12
R_a3x
14
R_a3x
16
R_a3x
18
R_a3x
20
R_a3x
22
R_a3x
24
R_a3x
26
R_a3x
28
R_a3x
30
Device Status Data 0
Device Status Data 28
Data
0
Data
4
Data
8
Data
12
Data
14
Data
16
Data
18
Data
19
Data
20
Config
0
Config
2
Config
4
Config
6
Config
8
Config
10
Config
12
Config
14
Config
17
Temp Model
0
Temp Model
2
Temp Model
4
Temp Model
6
Temp Model
8
Temp Model
10
Temp Model
12
Temp Model
14
Temp Model
16
Temp Model
18
Temp Model
20
Temp Model
22
Current
0
Current
1
Current
2
xCell3 R_a 4
xCell3 R_a 5
xCell3 R_a 6
xCell3 R_a 7
xCell3 R_a 8
xCell3 R_a 9
xCell3 R_a 10
xCell3 R_a 11
xCell3 R_a 12
xCell3 R_a 13
xCell3 R_a 14
PF Flags 1
PF Flags 2
CC Gain
CC Delta
Ref Voltage
AFE Pack Gain
CC Offset
Board Offset
Int Temp Offset
Ext1 Temp Offset
Ext2 Temp Offset
CC Current
Voltage Signal
Temp Signal
CC Offset Time
ADC Offset Time
CC Gain Time
Voltage Time
Temperature Time
Cal Mode Timeout
Ext Coef 1
Ext Coef 2
Ext Coef 3
Ext Coef 4
Ext Min AD
Ext Max Temp
Int Coef 1
Int Coef 2
Int Coef 3
Int Coef 4
Int Min AD
Int Max Temp
Filter
Deadband
CC Deadband
Data
Type
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
H2
H2
F4
F4
I2
I2
I2
I2
I1
I1
I1
I2
I2
I2
U2
U2
U2
U2
U2
U2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
U1
U1
U1
Min Value Max
Value
Default Value
254
254
145
261
261
152
333
333
176
338
338
204
345
345
222
350
350
254
382
382
315
429
429
437
502
502
651
545
545
1001
366
366
1458
0x0000 0x4dff 0x0000
0x0000 0x0dff 0x0000
0.1
4
0.9419
29826
1193046 280932.625
0
32767 24500
0
32767 22050
-32768
32767 -1667
-32768
32767 0
-128
127
0
-128
127
0
-128
127
0
0
32767 3000
0
32767 16800
0
32767 2980
0
65535 250
0
65535 32
0
65535 250
0
65535 1984
0
65535 32
0
65535 38400
-32768
32767 -28285
-32768
32767 20848
-32768
32767 -7537
-32768
32767 4012
-32768
32767 0
-32768
32767 4012
-32768
32767 0
-32768
32767 0
-32768
32767 -11136
-32768
32767 5754
-32768
32767 0
-32768
32767 5754
0
255
239
0
255
3
0
255
34
Units
2^-10ohm
2^-10ohm
2^-10ohm
2^-10ohm
2^-10ohm
2^-10ohm
2^-10ohm
2^-10ohm
2^-10ohm
2^-10ohm
2^-10ohm
50uV
µV/cnt
mA
mV
0.1°C
s
s
s
ms
s
1/128 s
s
s
s
s
s
s
s
s
s
s
s
s
mA
294 nV
Application Schematic
The application schematic is on the following page.
18
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