Data Sheet

© 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com
FAN5400 Family • Rev. 1.10 14
FAN5400 Family — USB-Compliant Single-Cell Li-Ion Switching Charger with USB-OTG Boost Regulator
Boost Mode Typical Characteristics
Unless otherwise specified, using circuit of Figure 1, V
BAT
=3.6 V, T
A
=25°C.
75
80
85
90
95
100
0 50 100 150 200 250 300
Efficiency (%)
VBUS Load Current (mA)
2.7VBAT
3.6VBAT
4.2VBAT
75
80
85
90
95
100
0 50 100 150 200 250 300
Efficiency (%)
VBUS Load Current (mA)
-10C, 3.6VBAT
+25C, 3.6VBAT
+85C, 3.6VBAT
Figure 21. Efficiency vs. V
BAT
Figure 22. Efficiency Over-Temperature
4.94
4.97
5.00
5.03
5.06
5.09
5.12
0 50 100 150 200 250 300
VBUS (V)
VBUS Load Current (mA)
2.7VBAT
3.6VBAT
4.2VBAT
4.94
4.97
5.00
5.03
5.06
5.09
5.12
0 50 100 150 200 250 300
VBUS (V)
VBUS Load Current (mA)
-10C, 3.6VBAT
+25C, 3.6VBAT
+85C, 3.6VBAT
Figure 23. Output Regulation vs. V
BAT
Figure 24. Output Regulation Over-Temperature
50
100
150
200
250
2 2.5 3 3.5 4 4.5 5
Quiescent Current (µA)
Battery Voltage, VBAT (V)
-30C
+25C
+85C
0
5
10
15
20
2 2.5 3 3.5 4 4.5 5
High-Z Mode Current (µA)
Battery Voltage, VBAT (V)
-30C
+25C
+85C
Figure 25. Quiescent Current
Figure 26. High-Impedance Mode Battery Current