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FAN54047 データシート(PDF) 3 Page - Fairchild Semiconductor

部品番号 FAN54047
部品情報  USB-OTG, 1.55 A, Li-Ion Switching Charger with Power Path and 2.3 A Production Test Support
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メーカー  FAIRCHILD [Fairchild Semiconductor]
ホームページ  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

FAN54047 データシート(HTML) 3 Page - Fairchild Semiconductor

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© 2012 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FAN54040
– FAN54047 • Rev. 1.0.2
3
Block Diagram
SW
SYSTEM
LOAD
Q2
L1
Q5
SDA
SCL
VBUS
CBUS
VBAT
SYS
GATE
CSYS
External
PMOS
Q3
POK_B
ILIM
CHARGE
PUMP
Q3
DIS
PGND
PGND
STAT
AGND
+
Q1B
Q1A
Q1
PMID
PWM
MODULATOR
CC and CV
Battery
Charger
CMID
CBAT
NTC
REF
RREF
TEMP
SENSE
I2C INTERFACE
LOGIC AND CONTROL
CREF
IBUS &
VBUS
CONTROL
VBUS OVP
POWER OK
Q4B
Q4A
Q4
T
BATTERY
PMID
Q1A
Q1B
Greater than VBAT
ON
OFF
Less than VBAT
OFF
ON
SYS
Q4A
Q4B
Greater than VBAT
ON
OFF
Less than VBAT
OFF
ON
Figure 2. IC and System Block Diagram
Table 2. Recommended External Components
Component
Description
Vendor
Parameter
Typ.
Unit
L1
1
H, 20%, 2.2 A, 2016
Taiyo Yuden MAKK2016T1R0M
or Equivalent
L
1.0
H
DCR (Series R)
75
m
CBAT, CSYS
10
F, 20%, 6.3 V, X5R, 0603
Murata: GRM188R60J106M
TDK: C1608X5R0J106M
C
10
F
CMID
4.7
F, 10%, 6.3 V, X5R, 0603
Murata: GRM188R60J475K
TDK: C1608X5R0J475K
C
(2)
4.7
F
CBUS,
1.0
F, 10%, 25 V, X5R, 0603
Murata GRM188R61E105K
TDK:C1608X5R1E105M
C
1.0
F
Q5
PMOS,12 V, 16 m
, MLP2x2
Fairchild FDMA905P
RDS(ON)
16
m
CREF
1
F, 10%, 6.3 V, X5R, 0402
C
1.0
F
Note:
2.
6.3 V rating is sufficient for CMID since PMID is protected from over-voltage surges on VBUS by Q3.


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