BQ25015 Datasheet, PDF (6/28 Pages) Texas Instruments – SINGLE-CHIP CHARGER AND DC/DC CONVERTER IC FOR PORTABLE APPLICATIONS

bq25015
bq25017
SLUS721A – DECEMBER 2006 – REVISED MARCH 2007
TYPICAL OPERATING CHARACTERISTICS
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100
95
90
85
80
75
70
65
60
55
50
0
EFFICIENCY
vs
LOAD CURRENT
Vbat = 2.7 V
Vbat = 3.7 V
Vbat = 4.2 V
V_O = 1.8 V,
FPWM = High
50 100 150 200 250 300
I_L - Load Current - mA
Figure 1.
EFFICIENCY
vs
LOAD CURRENT
100
Vbat = 2.7 V
95
90
85
Vbat = 3.7 V
80 ^{Vbat = 4.2 V}
75
70
65
60
55
50
0
V_O = 1.8 V,
FPWM = Low
50 100 150 200 250 300
I_L - Load Current - mA
Figure 2.
100
95
90
85
80
75
70
65
60
55
50
0
EFFICIENCY
vs
LOAD CURRENT
Vbat = 2.7 V
Vbat = 3.7 V
Vbat = 4.2 V
V_O =1.5 V,
FPWM = High
50 100 150 200 250 300
I_L - Load Current - mA
Figure 3.
EFFICIENCY
vs
LOAD CURRENT
100
Vbat = 2.7 V
95
90
85
Vbat = 3.7 V
80 _{Vbat = 4.2 V}
75
70
65
60
55
50
0
V_O = 1.5 V,
FPWM = Low
50 100 150 200 250 300
I_L - Load Current - mA
Figure 4.
SHORT CIRCUIT INDUCTOR CURRENT
Figure 5.
6
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