bq24072, bq24073
bq24074, bq24075, bq24079
www.ti.com................................................................................................................................................. SLUS810D–SEPTEMBER 2008–REVISED JUNE 2009
TYPICAL CHARACTERISTICS (continued)
VIN = 6V, EN1=1, EN2=0, bq24073 application circuit, TA = 25°C, unless otherwise noted.
bq24072/ 73/ 75/ 79
OVERVOLTAGE PROTECTION
THRESHOLD
bq24074
OVERVOLTAGE PROTECTION
THRESHOLD
bq24074
INPUT CURRENT LIMIT
vs
vs
vs
TEMPERATURE
TEMPERATURE
INPUT VOLTAGE
6.70
6.65
6.60
6.55
10.70
10.65
10.60
10.55
10.50
10.45
800
700
600
500
10.5 V
RILIM
6.6 V
VI Rising
VI Rising
USB500
400
300
VI Falling
10.40
10.35
10.30
10.25
10.20
VI Falling
200
6.50
6.45
USB100
100
0
5
6
7
8
9
10
0
25
75
125
0
25
50
75
100
125
50
100
VI - Input Voltage - V
TJ - Junction Temperature - °C
TJ - Junction Temperature - °C
Figure 19.
Figure 20.
Figure 21.
FASTCHARGE CURRENT
vs
BATTERY VOLTAGE
FASTCHARGE CURRENT
vs
BATTERY VOLTAGE
PRECHARGE CURRENT
vs
BATTERY VOLTAGE
310
305
300
295
290
105
104
1.05
1.03
RISET = 900 W
RISET = 900 W
RISET = 3 kW
103
102
101
100
99
1.01
0.99
98
0.97
0.95
97
285
280
96
95
3.6
3
3.8
2
2.2
2.4
2.6
2.8
3
3.4
4
4.2
3
3.2
3.4
3.6
3.8
4
4.2
3.2
VBAT - Battery Voltage - V
VBAT - Battery Voltage - V
VBAT - Battery Voltage - V
Figure 22.
Figure 23.
Figure 24.
PRECHARGE CURRENT
vs
BATTERY VOLTAGE
31.5
RISET = 3 kW
31
30.5
30
29.5
29
28.5
2
2.2
2.4
2.6
2.8
3
VBAT - Battery Voltage - V
Figure 25.
Copyright © 2008–2009, Texas Instruments Incorporated
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