FAN5400 Fairchild Semiconductor, FAN5400 Datasheet - Page 11

• Manufacturer Part Number: FAN5400
• Description: The FAN5400 combines a highly integrated switched-mode charger, to minimize single-cell Lithium-ion (Li-ion) charging time from a USB power source, and a boost regulator to power a USB peripheral from the battery
• Manufacturer: Fairchild Semiconductor

Charge Mode Typical Characteristics
Unless otherwise specified, circuit of Figure 1, V
© 2009 Fairchild Semiconductor Corporation
FAN5400 Family • Rev. 1.0.7
Figure 9. Charger Efficiency, No I
Figure 11. Auto-Charge Startup at V
Figure 7. Battery Charge Current vs. V
180
160
140
120
100
94%
92%
90%
88%
86%
84%
80
60
40
20
-
550
2.5
I
5.5VBUS
5.0VBUS
4.5VBUS
4.20VBAT, 4.5VBUS
4.20VBAT, 5.0VBUS
3.54VBAT, 5.0VBUS
3.54VBAT, 4.5VBUS
INLIM
650
=100mA, OTG=1, V
3
750
Battery Voltage, V
V
I
BAT
INLIM
Load Current (mA)
=100mA
850
3.5
BAT
950
INLIM
(V)
BAT
, I
=3.4V
1050
OCHARGE
BUS
4
OREG
BUS
Plug-in,
1150
=1,250mA
=4.2V, V
with
1250
4.5
BUS
11
=5.0V, and T
Figure 8. Battery Charge Current vs. V
Figure 10. Charger Efficiency vs. V
Figure 12. Auto-Charge Startup at V
900
800
700
600
500
400
300
200
100
94%
92%
90%
88%
86%
84%
-
2.5
2.5
A
=25°C.
I
2.7
INLIM
5.5VBUS
5.0VBUS
4.5VBUS
=500mA, OTG=1, V
2.9
3
Battery Voltage, V
Battery Voltage, V
3.1
3.3
3.5
BAT
3.5
BAT
(V)
(V)
BAT
BUS
3.7
BUS
=3.4V
www.fairchildsemi.com
, I
with I
BUS
4
3.9
INLIM
Plug-in,
4.5VBUS
5.0VBUS
5.5VBUS
INLIM
=500mA
4.1
=500mA
4.5
4.3