bq24072T
bq24075T, bq24079T
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SLUS937A –DECEMBER 2009–REVISED APRIL 2010
TYPICAL CHARACTERISTICS (continued)
VIN = 6V, EN1 = 1, EN2 = 0, TA = 25°C, unless otherwise noted.
SYSTEM ON/OFF WITH INPUT
NOT CONNECTED
DROPOUT VOLTAGE
vs
VIN = 0V
THERMAL REGULATION
TEMPERATURE
600
500
400
0.7
IL = 1 A
VSYSOFF
5 V/div
0.6
0.5
0.4
0.3
VBAT
4 V
2 V/div
300
200
VOUT
Battery Powering
System
System Power Off
0.2
0.1
0
IBAT
500 mA/div
100
0
4 ms/div
120
125
130
135
140
145
125
0
25
100
50 75
TJ - Junction Temperature - °C
Temperature - o
C
Figure 10.
Figure 11.
bq24072T
Figure 12.
DROPOUT VOLTAGE
vs
bq24072T
OUTPUT REGULATION VOLTAGE
OUTPUT REGULATION VOLTAGE
TEMPERATURE
NO INPUT SUPPLY
vs
vs
BATTERY VOLTAGE
TEMPERATURE
4.6
120
100
80
3.80
VIN = 5 V
4.4
VIN = 5 V,
IL = 1 A
3.78
VBAT = 3.5 V,
IL = 1 A
3.76
3.74
3.72
3.70
3.68
3.66
3.64
3.62
3.60
4.2
4
VBAT = 3 V
3.8
3.6
3.4
3.2
3
60
40
VBAT = 3.9 V
20
0
2
125
3
VBAT - Battery Voltage - V
4.5
0
50
75
100
25
TJ - Junction Temperature - °C
2.5
3.5
4
0
25
50
75
100
125
TJ - Junction Temperature - °C
Figure 13.
Figure 14.
Figure 15.
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