FAN5400_11 FAIRCHILD [Fairchild Semiconductor], FAN5400_11 Datasheet - Page 3
FAN5400_11
Manufacturer Part Number
FAN5400_11
Description
FAN5400 / FAN5401 / FAN5402 / FAN5403 / FAN5404 / FAN5405 USB-Compliant Single-Cell Li-Ion Switching Charger
Manufacturer
FAIRCHILD [Fairchild Semiconductor]
Datasheet
1.FAN5400_11.pdf
(37 pages)
Block Diagram
© 2009 Fairchild Semiconductor Corporation
FAN5400 Family • Rev. 1.0.7
PMID
Greater than VBAT
Less than VBAT
VBUS
Q1A
ON
OFF
C
IN1
CHARGE
Q1B
OFF
ON
PUMP
Q3
Figure 2. IC and System Block Diagram
Figure 3. Power Stage
Q1
Q2
Q1B
Q1A
3
PMID
CSIN
SW
PGND
VBAT
SYSTEM
1H
L1
C
LOAD
OUT
C
IN2
C
BAT
+ Battery
68m
R
SENSE
www.fairchildsemi.com
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