BQ24072_10 Datasheet, PDF (12/42 Pages) Texas Instruments – 1.5A USB-FRIENDLY Li-Ion BATTERY CHARGER AND POWER-PATH MANAGEMENT IC

bq24072, bq24073
bq24074, bq24075, bq24079
SLUS810E – SEPTEMBER 2008 – REVISED JULY 2010
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TYPICAL CHARACTERISTICS (continued)
V_IN = 6V, EN1=1, EN2=0, bq24073 application circuit, T_A = 25°C, unless otherwise noted.
FASTCHARGE CURRENT
FASTCHARGE CURRENT
vs
vs
BATTERY VOLTAGE
BATTERY VOLTAGE
PRECHARGE CURRENT
vs
BATTERY VOLTAGE
1.05
1.03
R_ISET = 900 W
310
R_ISET = 3 kW
305
105
104
R_ISET = 900 W
103
102
300
1.01
101
295
100
0.99
99
290
98
0.97
0.95
3
3.2 3.4 ^3.6 3.8
4 4.2
V_BAT - Battery Voltage - V
Figure 22.
285
280
3 3.2 3.4 3.6 3.8 4 4.2
V_BAT - Battery Voltage - V
Figure 23.
97
96
95
2
2.2
2.4
2.6
2.8
3
V_BAT - Battery Voltage - V
Figure 24.
PRECHARGE CURRENT
vs
BATTERY VOLTAGE
31.5
R_ISET = 3 kW
31
30.5
30
29.5
29
28.5
2
2.2
2.4
2.6
2.8
3
V_BAT - Battery Voltage - V
Figure 25.
12
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