BQ25071-Q1 Datasheet, PDF (7/22 Pages) Texas Instruments – Automotive Qualified

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7.7 Typical Characteristics
V_IN = 5 V, V_BAT = 3.2 V, I _(CHG) = 280 mA, Typical Application Circuit
bq25071-Q1
SLUSCD6 – APRIL 2016
4
3.5
3
2.5
2
1.5
1
0.5
0
0:00:00
V_(BAT)
V_(CHG)
1:12:00
2:24:00
3:36:00
Elapsed Time (hh:mm:ss)
1.6
1.4
I_(BAT) 1.2
1
0.8
0.6
0.4
0.2
0
4:48:00
Figure 1. Voltage and Current vs Elapsed Time
3.55
3.54
3.53
3.52
3.51
3.5
3.49
3.48
3.47
3.46
3.45
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
Charge Current (A)
G008
1.5
1.4
1.3
1.2
1.1
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
-40 -25 -10 5
20 35 50 65 80
Temperature (°C)
V_IN = 4.5 V
T_A = –40°C to 125°C
I_OUT = 1 A
95 110 125
G007
Figure 2. Dropout Voltage vs Temperature
10.6
10.58
10.56
10.54
10.52
10.5
10.48
10.46
10.44
10.42
10.4
-40 -25 -10 5 20 35 50 65 80 95 110 125
Temperature (qC)
D001
T_A = –40°C to 125°C
Figure 3. Battery Regulation Voltage vs Charge Current
1.1
1.05
1
0.95
0.9
0.85
0.8
0.75
0.7
0.65
0.6
0.55
0.5
0.45
0.4
5
500 mA Current Limit
1 A Current Limit
Thermal Regulation
6
7
8
9
Input Voltage (V)
10
D102
Figure 4. OVP Threshold vs Temperature
0.7
100mA Current Limit
0.6
500mA Current Limit
0.5
0.4
0.3
0.2
0.1
0
2.5
2.75
3
3.25
Battery Voltage (V)
V_IN = 5 V
3.5
G011
Figure 5. Charge Current vs Input Voltage
Figure 6. Input Current Limit vs Battery Voltage
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