BQ24295 Datasheet, PDF (14/45 Pages) Texas Instruments – I2C Controlled 3A Single Cell USB Charger

bq24295
SLUSBC1 – SEPTEMBER 2013
BOOST MODE EFFICIENCY
vs
VBUS LOAD CURRENT
100
95
90
85
80
75
70
65
60
0
VBAT = 3.2V
VBAT = 3.5V
VBAT = 3.8V
0.5
1
1.5
VBUS Load Current (A)
Figure 5.
BOOST MODE PMID VOLTAGE REGULATION
(Typical Output = 5.126V ; REG06[7:4]=1001)
vs
PMID LOAD CURRENT
5.2
5.1
5
4.9
4.8
4.7
4.6
0
VBAT = 3.2V
VBAT = 3.5V
VBAT = 3.8V
0.5
1
1.5
VBUS Load Current (A)
Figure 7.
BAT VOLTAGE
vs
TEMPERATURE
4.4
4.35
4.3
4.25
4.2
4.15
VREG = 4.208V
VREG = 4.35V
4.1
-50 -25 0 25 50 75 100 125 150
Temperature (^oC)
Figure 9.
4
3.9
3.8
3.7
3.6
3.5
3.4
3.3
3.2
0
SYS VOLTAGE REGULATION
vs
SYSTEM LOAD CURRENT
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SYSMIN = 3.5
SYSMIN = 3.2
SYSMIN = 3.7
0.5
1
1.5
2
2.5
3
3.5
System Load Current (A)
Figure 6.
SYS VOLTAGE
vs
TEMPERATURE
3.7
3.65
3.6
3.55
SYSMIN = 3.5V
3.5
-50 -25 0 25 50 75 100 125 150
Temperature (^oC)
Figure 8.
INPUT CURRENT LIMIT
vs
TEMPERATURE
2.5
2
1.5
IIN = 500mA
1
IIN = 1.5A
IIN = 2A
0.5
0
-50 -25 0 25 50 75 100 125 150
Temperature ^(oC)
Figure 10.
14
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