bq24072, bq24073
bq24074, bq24075, bq24079
SLUS810D–SEPTEMBER 2008–REVISED JUNE 2009................................................................................................................................................. www.ti.com
TYPICAL CHARACTERISTICS (continued)
VIN = 6V, EN1=1, EN2=0, bq24073 application circuit, TA = 25°C, unless otherwise noted.
SYSTEM ON/OFF WITH INPUT NOT
CONNECTED
VIN = 0V
DROPOUT VOLTAGE
vs
bq24075, bq24079
THERMAL REGULATION
TEMPERATURE
600
500
400
0.7
0.6
IL = 1 A
VSYSOFF
5 V/div
0.5
0.4
0.3
VBAT
4 V
2 V/div
300
200
VOUT
Battery Powering
System
0.2
0.1
0
System Power Off
IBAT
500 mA/div
100
0
4 ms/div
120
125
130
135
140
145
125
0
25
100
50
75
Temperature - o
C
TJ - Junction Temperature - °C
Figure 10.
Figure 11.
bq24072
Figure 12.
DROPOUT VOLTAGE
vs
TEMPERATURE
NO INPUT SUPPLY
bq24072
OUTPUT REGULATION VOLTAGE
OUTPUT REGULATION VOLTAGE
vs
vs
BATTERY VOLTAGE
TEMPERATURE
4.6
4.4
120
3.80
3.78
3.76
3.74
3.72
3.70
3.68
3.66
3.64
3.62
3.60
VIN = 5 V
VIN = 5 V,
VBAT = 3.5 V,
IL = 1 A
IL = 1 A
100
80
4.2
4
VBAT = 3 V
3.8
3.6
3.4
3.2
3
60
40
VBAT = 3.9 V
20
0
125
2
0
50
75
100
3
4.5
25
2.5
3.5
4
0
25
50
75
100
125
TJ - Junction Temperature - °C
VBAT - Battery Voltage - V
TJ - Junction Temperature - °C
Figure 13.
Figure 14.
Figure 15.
bq24073/ 74
bq24075, bq24079
OUTPUT REGULATION VOLTAGE
OUTPUT REGULATION VOLTAGE
BAT REGULATION VOLTAGE
vs
vs
vs
TEMPERATURE
TEMPERATURE
TEMPERATURE
4.45
4.43
4.40
4.38
4.35
5.75
5.70
5.65
5.60
4.210
4.205
4.200
4.195
VIN = 6 V,
IL = 1 A
VIN = 5 V,
IL = 1 A
5.55
5.50
5.45
5.40
4.190
4.185
4.180
5.35
4.33
4.30
5.30
5.25
0
50
75
100
125
25
0
25
50
75
100
125
30
25
10
15
20
0
5
TJ - Junction Temperature - °C
TJ - Junction Temperature - °C
TJ - Junction Temperature - °C
Figure 16.
Figure 17.
Figure 18.
10
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Product Folder Link(s): bq24072 bq24073 bq24074 bq24075, bq24079
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