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FAN5400 Просмотр технического описания (PDF) - Fairchild Semiconductor

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FAN5400 USB-Compliant Single-Cell Li-Ion Switching Charger with USB-OTG Boost Regulator Fairchild
Fairchild Semiconductor Fairchild
FAN5400 Datasheet PDF : 37 Pages
First Prev 11 12 13 14 15 16 17 18 19 20 Next Last
Charge Mode Typical Characteristics
Unless otherwise specified, circuit of Figure 1, VOREG=4.2V, VBUS=5.0V, and TA=25°C.
180
900
160
800
140
700
120
600
100
500
80
400
60
300
40
5.5VBUS
20
5.0VBUS
4.5VBUS
-
2.5
3
3.5
4
4.5
Battery Voltage, VBAT (V)
200
5.5VBUS
100
5.0VBUS
4.5VBUS
-
2.5
3
3.5
4
4.5
Battery Voltage, VBAT (V)
Figure 7. Battery Charge Current vs. VBUS with
IINLIM=100mA
Figure 8. Battery Charge Current vs. VBUS with IINLIM=500mA
94%
94%
92%
92%
90%
90%
88%
86%
84%
550
4.20VBAT, 4.5VBUS
4.20VBAT, 5.0VBUS
3.54VBAT, 5.0VBUS
3.54VBAT, 4.5VBUS
650
750
850
950
1050
VBAT Load Current (mA)
1150
1250
Figure 9. Charger Efficiency, No IINLIM, IOCHARGE=1,250mA
88%
86%
4.5VBUS
5.0VBUS
84%
5.5VBUS
2.5 2.7 2.9 3.1 3.3 3.5 3.7 3.9 4.1 4.3
Battery Voltage, VBAT (V)
Figure 10. Charger Efficiency vs. VBUS, IINLIM=500mA
Figure 11. Auto-Charge Startup at VBUS Plug-in,
IINLIM=100mA, OTG=1, VBAT=3.4V
Figure 12. Auto-Charge Startup at VBUS Plug-in,
IINLIM=500mA, OTG=1, VBAT=3.4V
© 2009 Fairchild Semiconductor Corporation
FAN5400 Family • Rev. 1.0.7
11
www.fairchildsemi.com
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