FAN5400_11 Datasheet, PDF (15/37 Pages) Fairchild Semiconductor – FAN5400 / FAN5401 / FAN5402 / FAN5403 / FAN5404 / FAN5405 USB-Compliant Single-Cell Li-Ion Switching Charger

Boost Mode Typical Characteristics
Unless otherwise specified, using circuit of Figure 1, V_BAT=3.6V, T_A=25°C.
Figure 27. Boost PWM Waveform
30
25
20
15
10
5
0
0
2.7VBAT
3.6VBAT
4.2VBAT
4.5VBAT
50
100
150
200
250
300
VBUS Load Current (mA)
Figure 29. Output Ripple vs. V_BAT
Figure 28. Boost PFM Waveform
30
25
20
15
10
5
0
0
-30C, 3.6VBAT
+25C, 3.6VBAT
+85C, 3.6VBAT
50
100
150
200
250
300
VBUS Load Current (mA)
Figure 30. Output Ripple vs. Temperature
© 2009 Fairchild Semiconductor Corporation
FAN5400 Family • Rev. 1.0.7
15
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