F75204
10. Application Circuit
VBUS_1
C1
VBUS ON/OFF CIRCUIT
VBUS_1
1u-0603
R1
100K
R2
10K
U1
VBUS_2
5
4
6
7
8
OC#
VOUT
VOUT
VOUT
(B) "put R9" if CEN=low pulse for 1 second
C2
0.1u-0603
C3
470uF
CEN
R3
0
EN
UP7534A_MSOP-8
(A) "put R10" if CEN#=high pulse for 1 second
R4
0
Q1
MOSFET N
CEN#
2N7002
TO-92
R5
1M
避免NEC chip沒電時floating造成誤動作
CEN_Strap :
CEN:
External pull high
CEN#: External pull down
VBUS_1
VBUS_1
CB=0 Charger Mode
CB=1 Transmission Mode
R7
1k
R6
SW KEY-SPDT
10K (B) "put R14" if CEN=low pulse for 1 second
R8
0
CEN
CEN#
R9
0
VBUS_2
R11
1k
VBUS_1
SW1
R10 (A) "put R15" if CEN#=high pulse for 1 second
10K
C4
1uF
C5
J1
1uF
J2
U2
1
VBUS
D-
1
2
3
4
8
7
6
5
1
2
3
4
VBUS
D-
CEN#/CEN
DM
CB
TDM
TDP
VCC
2
3
4
D+
D+
DP
GND
D-/D+ 走線需平行且對稱/等長
VBUS_1
GND
GND
F75204
CON4
C6
1uF
CON4
USB(母座
for Device
)
USB(公座
for MotherBoard
)
Title
Size
<F75204> Feature Integration Technology Inc.
Document Number
Rev
0.1
Custom<Doc>
Date: Friday, September 09, 2011
Sheet
1
of
2
Dec., 2011
V0.16P
1
FINTEK [ FEATURE INTEGRATION TECHNOLOGY INC. ]
