QUICK START GUIDE FOR DEMONSTRATION CIRCUIT 1317A-F
ACTIVE RESET ISOLATED 9-36V INPUT TO 3.3V @20A DC/DC POWER CONVERTER
6
Rcs1
0.005R
+Vin
R9
47R
R54
2.2R
Cu1
4.7u
R23 910R
R24
22k
Vu1
R15
178k
R20
100k
C10
0.1u
Q1
Si7138
D10
BAT760
R3
249R
C15
2.2nF, 2kV
C11
4.7n
R
28
11
5k
R22
13.3k
G45R2-0302.007
GND
8
SD
7
MaxDC
5
FB=1.23V
2
Comp
1
Rosc
3
Vr=2.5V
6
Blank 9
Delay 12
OC 11
Sync
4
Isense 10
PGND 13
Out 14
Vin 15
Sout 16
U1
LT1952-1
R33
158k
C13
.47u
SS
SS
R26
220R
R30
1.2k
R14
33K
C23
1uF
Vfb
Vfb
R13
22K
Co1
10
0u
F,
X
7R
+Vo1
R17
560R
Co2
T2A
PE-68386
C14
1u
C12
470p
R19
56K
CS-
2
CS+
1
CG
3
Vcc
4
FG 5
GND 6
Timer 7
Sync 8
U5
LTC3900
R21
10k
R27
470R
R38
18.2K
R35
82.5k
R34
8.66k
C19
1uF, X5R
C16
.22u, 10V
C17
15n
+Vo1
R31
10R
SS
3
Vcc
1
FB 4
Opto 6
GND
2
Comp 5
U4
LT4430
R18
10k
Cin
3x6.8uF
+Vin
D5
PDZ10B
Vu1
D2
BAS516
R11
10k
-Vin
+Vin
9V-36V Input
R1
2.2R
R
32
19
6k
L1
PA1671.112
Q2
HAT2165
Q3
HAT2165
R16
33k
C5
0.22u
D6
B0540
Q9
BCX55
R10
1k
D9
PDZ7.5B
R8
2.2R
FG
FG
CG
CG
C3
1u
Q12
BC856T
D3
Q10
PBSS8110
+Vb
+Vb
L2
1.5mH
U6
PS2801-1
T1
Inp
3
Vcc
1
TS 4
Boost 6
GND
2
TG 5
U2
LTC4440-5
C21
470p
D1
BAS516
Vu1
Out
D11
BAS516
GND
+Vout
C7
220p
Out
+
C
sy
s
47
0u
, 6
.3
V
, 4
m
C24
39p
C9
100p
C
25
33
n
Q13
Si7309
D14
BAS516
R45
10k
+Vr2
+Vr2
D17
BAS516
2
5
7, 8
10, 11
C33
0.1u
* R29
PMEG3002
C34
0.33uF
L4
10uH
R53
200R
R2
560k
C8
100p
1
6
* Please change the ref designator to reflect the symbol.
Demo Board DC1317A-F schematic
NOTE:
This schematic shows only the components required for operation of -F version
of DC1317A demo board.
All optional components of DC1317A demo board have been removed.
Also, all zero-ohm resistors have been replaced with wires.
Please consult the full DC1317A-F schematic to decide if any of the optional
components should be included in your design.