BQ20Z70 Datasheet, PDF (13/22 Pages) Texas Instruments – SBS 1.1-COMPLIANT GAS GAUGE ENABLED WITH IMPEDANCE TRACK™ TECHNOLOGY FOR USE WITH THE bq29330

bq20z70
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Class
1st Level
Safety
1st Level
Safety
1st Level
Safety
1st Level
Safety
1st Level
Safety
1st Level
Safety
1st Level
Safety
2nd Level
Safety
2nd Level
Safety
2nd Level
Safety
2nd Level
Safety
2nd Level
Safety
2nd Level
Safety
2nd Level
Safety
2nd Level
Safety
2nd Level
Safety
2nd Level
Safety
2nd Level
Safety
2nd Level
Safety
2nd Level
Safety
2nd Level
Safety
2nd Level
Safety
2nd Level
Safety
2nd Level
Safety
Charge
Control
Charge
Control
Charge
Control
Charge
Control
Charge
Control
Charge
Control
Subclass
ID
1
1
1
2
2
2
2
16
16
16
16
16
16
16
17
17
17
17
18
18
18
18
19
20
32
32
33
33
33
33
Subclass
Current
SLUS686A – NOVEMBER 2005 – REVISED JUNE 2006
Table 3. DATAFLASH VALUES (continued)
Offset Name
18
AFE OC Dsg Time
Data
Type
H1
Min Value Max
Value
0x00
0xff
Default Value Units
0x0f
Current
21
AFE SC Chg Cfg
H1
0x00
0xff
0x77
Current
22
AFE SC Dsg Cfg
H1
0x00
0xff
0x77
Temperature
0
Over Temp Chg
I2
0
1200
550
0.1°C
Temperature
3
OT Chg Recovery
I2
0
1200
500
0.1°C
Temperature
5
Over Temp Dsg
I2
0
1200
600
0.1°C
Temperature
8
OT Dsg Recovery
I2
0
1200
550
0.1°C
Voltage
0
SOV Threshold
I2
0
20000 18000
mV
Voltage
2
SOV Time
U1
0
30
0
s
Voltage
3
Cell Imbalance Current
I1
0
200
5
mA
Voltage
4
Cell Imbalance Fail Voltage I2
0
5000
1000
mV
Voltage
6
Cell Imbalance Time
U1
0
30
0
s
Voltage
7
Battery Rest Time
U2
0
65535 1800
s
Voltage
9
PFIN Detect Time
U1
0
30
0
s
Current
0
SOC Chg
I2
0
30000 10000
mA
Current
2
SOC Chg Time
U1
0
30
0
s
Current
3
SOC Dsg
I2
0
30000 10000
mA
Current
5
SOC Dsg Time
U1
0
30
0
s
Temperature
0
SOT Chg
I2
0
1200
650
0.1°C
Temperature
2
SOT Chg Time
U1
0
30
0
s
Temperature
3
SOT Dsg
I2
0
1200
750
0.1°C
Temperature
5
SOT Dsg Time
U1
0
30
0
s
FET Verification
2
FET Fail Time
U1
0
30
0
s
AFE Verification
1
AFE Fail Limit
U1
0
255
10
Charge Inhibit Cfg 0
Chg Inhibit Temp Low
I2
-400
1200
0
0.1°C
Charge Inhibit Cfg 2
Chg Inhibit Temp High
I2
-400
1200
450
0.1°C
Pre-Charge Cfg
0
Pre-chg Current
I2
0
2000
250
mA
Pre-Charge Cfg
2
Pre-chg Temp
I2
-400
1200
120
0.1°C
Pre-Charge Cfg
4
Pre-chg Voltage
I2
0
20000 3000
mV
Pre-Charge Cfg
6
Recovery Voltage
I2
0
20000 3100
mV
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