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DF69 Datasheet(PDF) 104 Page - PADAUK Technology.

Part # DF69
Description  DC Fan Controller
PDF  106 Pages
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Manufacturer  PADAUK [PADAUK Technology.]
Direct Link  http://www.padauk.com.tw/
Logo PADAUK - PADAUK Technology.

DF69 Datasheet(HTML) 104 Page - PADAUK Technology.

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DF69
DC Fan Controller
8. Application Circuit
The application circuits for two operating modes are provided: (1) PWM input control mode (2) Temperature
input control mode. Please notice that the application circuit is for reference only; please contact PADAUK
Technology if customer wants to begin the project.
CN2
HEADER2
SIP-2P
VDD
ZD2
TVS
HALL_IN
R15
U1
S1
1
G1
2
S2
3
G2
4
D2
5
D2
6
D1
7
D1
8
U2
S1
1
G1
2
S2
3
G2
4
D2
5
D2
6
D1
7
D1
8
BC4
R13
R9
+
EC1
D+5V
R5
DC_IN
C1
R6
C2
PWM_AH
C3
BC2
D+5V
Current sense
PWM input
H-bridge
FG/RD
R7
U3
DF69
MSOP10-118
PB7/AD7
1
VDD
2
PA6/X2
3
PA7/X1
4
PA4/AD9
7
PA3/AD8
6
PA0/INT0
5
PA5/PRST#
8
GND
9
PB0/INT1/AD0
10
R17
R12
R14
R3
FG/RD
PWM_IN
Q2
1
D+5V
R2
ZD1
D1
R4
1K
+
EC2
R21
1K
D+5V
D2
R19
Q4
1
GND
D+5V
CUR_SE
U4
FS177
TO-92SP-3
R8
R11
Q5
1
PWM_AL
PWM_BL
PWM_BH
C4
The circuit reference only.
Q1
1
HALL_sense
R1
BC3
1u
CN1
HEADER4
1
2
3
4
(open-drain)
(open-drain)
PWM Input Control
FG_RD
PWM_IN
VDD
GND
VDD 5V
FG_OUT
Current_sense
R20
DC Input
PWM_input
CN2
HEADER2
SIP-2P
ZD2
TVS
R15
U1
S1
1
G1
2
S2
3
G2
4
D2
5
D2
6
D1
7
D1
8
U2
S1
1
G1
2
S2
3
G2
4
D2
5
D2
6
D1
7
D1
8
BC4
R13
+
EC1
D+5V
R16
PWM_BL
R5
DC_IN
C1
D+5V
R6
C2
C3
0.1u
BC2
Current sense
H-bridge
FG/RD
Temperature sense
Analog input
R7
R17
R12
R14
R3
Temperature Input Control
Q2
1
D+5V
R2
ZD1
D1
+
EC2
R21
1K
D+5V
D2
R19
Q4
1
D+5V
U4
FS177
TO-92SP-3
R8
R11
Q5
1
C4
The circuit reference only.
Q1
1
HALL_sense
R1
BC3
1u
CN1
HEADER4
1
2
3
4
(open-drain)
(open-drain)
FG_RD
VDD
PWM_AH
HALL_IN
U5
DF69
MSOP10-118
PB7/AD7
1
VDD
2
PA6/X2
3
PA7/X1
4
PA4/AD9
7
PA3/AD8
6
PA0/INT0
5
PA5/PRST#
8
GND
9
PB0/INT1/AD0
10
TEMP_IN
FG/RD
PWM_BH
PWM_AL
CUR_SE
GND
R18
NTC
PWM_IN
VDD
GND
VDD 5V
FG_OUT
Current_sense
R20
DC Input
©Copyright 2018, PADAUK Technology Co. Ltd
Page 104 of 106
PDK-DS-DF69_V003 – Apr. 18, 2018



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