BQ2406X Datasheet, PDF (24/31 Pages) Texas Instruments – 1A SINGLE-CHIP Li-Ion/Li-Pol CHARGE MANAGEMENT IC WITH THERMAL REGULATION

bq2406x
SLUS689 – JUNE 2006
TYPICAL OPERATING CHARACTERISTICS (continued)
Measured using the typical application circuit shown previously.
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bq2406x ACTIVE SUPPLY
CURRENT
vs
TEMPERATURE
6
VIN @ 16.5 V
5.5
5
VIN @ 12.5 V
4.5
VIN @ 6 V
4
3.5
-10 0 10 20 30 40 50 60 70 80 90
TA - Temperature - C
Figure 18.
FAST-CHARGE CURRENT
vs
BATTERY VOLTAGE
1000
995
990
985
980
0°C ^25°C
975
970
85°C
965
960
955
950
3
3.20 3.40 3.60 3.80
4
Battery Voltage - V
Figure 21. HIGH CHARGE RATE
KSET LINEARITY
vs
CHARGE CURRENT
350
345
85°C
340
0°C
335
25°C
330
325
320
0 100 200 300 400 500 600 700 800 900 1000
Battery Charge Current - mA
Figure 24. 3.0 < V_(BAT) < 4.0 V
PRE-CHARGE CURRENT
vs
BATTERY VOLTAGE
105
104.5
104
103.5
103
85°C
102.5
102
101.5
101
25°C
0°C
100.5
100
2
2.20 2.40 2.60 2.80
3
Battery Voltage - V
Figure 19. HIGH CHARGE RATE
FAST-CHARGE CURRENT
vs
BATTERY VOLTAGE
52.5
52
51.5
25°C
51
0°C
50.5
50
85°C
49.5
49
48.5
48
47.5
3
3.20 3.40 3.60 3.80
4
Battery Voltage - V
Figure 22. LOW CHARGE RATE
BATTERY REGULATION VOLTAGE
vs
INPUT VOLTAGE
4.202
0°C
4.200
4.198
4.196
25°C
4.194
4.192
4.190
4.188
4.186
4.5
85°C
6.5 8.5 10.5 12.5 14.5 16.5
Input Voltage - V
Figure 25.
PRE-CHARGE CURRENT
vs
BATTERY VOLTAGE
45
40
35
85°C
30
25
20
15
10
25°C
5
0°C
0
2
2.20 2.40 2.60 2.80
3
Battery Voltage - V
Figure 20. LOW CURRENT RATE
KSET LINEARITY
vs
CHARGE CURRENT
400
390
380
370
360
85°C
350
0°C
340
25°C
330
320
310
300
25 35 45 55 65 75 85 95 105 115 125
Battery Charge Current -
Figure 23. 2.0 < V_(BAT) < 3.0 V
0.400
0.375
DROPOUT VOLTAGE
vs
TEMPERATURE
0.350
0.325
0.300
0.275
0.250
0.225
0.200
-15 5 25 45 65 85 105 125
TA - Temperature - °C
Figure 26.
24
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