BQ24230 Datasheet, PDF (9/33 Pages) Texas Instruments – USB-FRIENDLY LITHIUM-ION BATTERY CHARGER AND POWER-PATH MANAGEMENT IC

bq24230
bq24232
www.ti.com .......................................................................................................................................... SLUS821A – OCTOBER 2008 – REVISED DECEMBER 2008
TYPICAL CHARACTERISTICS (continued)
Typical Application Circuit, EN1=0, EN2=1, T_A=25°C, unless otherwise noted.
DROPOUT VOLTAGE
vs
TEMPERATURE
60
I_L = 500 mA
50
OUTPUT REGULATION VOLTAGE
vs
TEMPERATURE
4.45
4.43
V_IN = 5 V,
I_L = 500 mA
BATTERY REGULATION VOLTAGE
vs
TEMPERATURE
4.210
4.205
40
VBAT = 3 V
4.40
4.200
30
VBAT = 3.9 V
4.38
20
4.35
4.195
4.190
10
4.33
4.185
0
0
25
50
75
100
125
T_J - Junction Temperature - °C
Figure 10.
4.30
0
25
50
75
100 125
T_J - Junction Temperature - °C
Figure 11.
4.180
0
25 50 75 100 ^{125 150}
T_J - Junction Temperature - °C
Figure 12.
OVERVOLTAGE PROTECTION
THRESHOLD
vs
TEMPERATURE
bq24230
6.70
6.6 V
6.65
V_I Rising
6.60
6.55
6.50
V_I Falling
6.45
0
25
50
75
100 125
T_J - Junction Temperature - °C
Figure 13.
OVERVOLTAGE PROTECTION
THRESHOLD
vs
TEMPERATURE
bq24232
10.70
10.65
10.5 V
10.60
10.55
V_I Rising
10.50
10.45
10.40
V_I Falling
10.35
10.30
10.25
10.20
0
25
50
75
100 125
T_J - Junction Temperature - °C
Figure 14.
INPUT CURRENT LIMIT THRESHOLD
vs
INPUT VOLTAGE
800
700
600
500
USB500
400
300
200
100
0
5
USB100
6
7
8
9
10
V_I - Input Voltage - V
Figure 15.
FAST-CHARGE CURRENT
vs
BATTERY VOLTAGE
310
R_ISET = 3.3 kW
305
PRECHARGE CURRENT
vs
BATTERY VOLTAGE
31.5
R_ISET = 3.3 kW
31
300
30.5
295
30
290
29.5
285
29
280
3 3.2 3.4 3.6 3.8 4 4.2
V_BAT - Battery Voltage - V
Figure 16.
28.5
2
2.2 2.4
2.6
2.8
3
V_BAT - Battery Voltage - V
Figure 17.
Copyright © 2008, Texas Instruments Incorporated
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