BQ27742-G1 Datasheet, PDF (14/46 Pages) Texas Instruments – Single-Cell Li-Ion Battery Fuel Gauge with Programmable Hardware Protection

bq27742-G1
SLUSBV9C – MARCH 2014 – REVISED FEBRUARY 2016
6.22 Typical Characteristics
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4.500
4.490
4.480
4.470
4.460
4.450
4.440
4.430
4.420
4.410
4.400
±40 ±30 ±20 ±10 0 10 20 30 40 50 60 70 80
Temperature (ƒC)
C001
2.490
2.480
2.470
2.460
2.450
2.440
2.430
2.420
2.410
2.400
2.390
±40 ±30 ±20 ±10 0 10 20 30 40 50 60 70 80
Temperature (ƒC)
C001
UVP threshold shown assumes an overvoltage setting of 4.450 V
Figure 3. Overvoltage Detection Threshold vs Temperature
30
28
26
[OCC1, OCC0] = 11
24
22
[OCC1, OCC0] = 10
20
18
16
[OCC1, OCC0] = 01
14
12
10
[OCC1, OCC0] = 00
8
6
4
±40 ±30 ±20 ±10 0 10 20 30 40 50 60 70 80
Temperature (ƒC)
C001
OCC thresholds shown assume an overvoltage setting of 4.450 V
Figure 4. Undervoltage Detection Threshold vs Temperature
85
80
[OCD2, OCC1, OCD0] = 111
75
70
[OCD2, OCC1, OCD0] = 110
65
60
[OCD2, OCC1, OCD0] = 101
55
50
45
[OCD2, OCC1, OCD0] = 100
40
35
[OCD2, OCC1, OCD0] = 011
30
25
[OCD2, OCC1, OCD0] = 010
20
15
[OCD2, OCC1, OCD0] = 001
10
5
±40 ±30 ±20 ±10 0
[OCD2, OCC1, OCD0] = 000
10 20 30 40 50 60 70 80
Temperature (ƒC)
C001
OCD thresholds shown assume an overvoltage setting of 4.450 V
Figure 5. Overcurrent in Charge Detection Threshold vs
Temperature
150
145
[SCD] = 1
140
135
130
125
120
115
110
105
100
95
90
85
80
[SCD] = 0
75
70
±40 ±30 ±20 ±10 0 10 20 30 40 50 60 70 80
Temperature (ƒC)
C001
SCD thresholds shown assume an overvoltage setting of 4.450 V
Figure 6. Overcurrent in Discharge Detection Threshold vs
Temperature
1.05
1.04
1.03
1.02
1.01
1.00
0.99
0.98
0.97
0.96
0.95
±40 ±30 ±20 ±10 0 10 20 30 40 50 60 70 80
Temperature (ƒC)
C001
Figure 7. Short-Circuit in Discharge Detection Threshold vs
Temperature
Figure 8. Overvoltage Delay Time
14
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