QUICK START GUIDE FOR DEMONSTRATION CIRCUIT 1317A-D
ACTIVE RESET ISOLATED 18-72V INPUT TO 24V @5A DC/DC POWER CONVERTER
6
Rcs1
0.006R
+Vin
R54
4.7R
Cu1
4.7u
R23 1.5k
R24
47k
Vu1
R15
169k
R20
75k
C10
0.1u
Vu1
Q1
D10*
100p
C15
2.2nF, 2kV
R
28
30
9k
R22
13.3k
HAT2173
G45R2-0408.004
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
C13
.47u
R26
220R
R30
1.2k
R14
33K
C23
1uF
Vfb
Vfb
R13
22K
C
o1
22
uF
, X
7R
+Vo1
R27
470R
R38
6.04k
R35
237k
R34
13.7k
C19
1uF
C17
15n
+Vo1
SS
3
Vcc
1
FB 4
Opto 6
GND
2
Comp 5
U4
LT4430
Cin
3x2.2uF
+Vin
D5
PDZ10B
Vu1
D2
BAS516
R11
82k
-Vin
+Vin
18V to 72V
R1
2.2R
R
32
18
7k
L1
HR-PQA2050-27
Q2
HAT2173
Q3
RJK2055
FG
CG
Q12
BC856T
D3
Q10
PBSS8110
+Vb
+Vb
L2
1.5mH
U6
PS2801-1
T1
D11
BAS516
GND
+Vout
* Please change the ref designator to reflect the symbol.
+
C
sy
s
27
0u
, H
V
H
C9
100p
C
25
33
n
Q13
Si2325
D14
BAS516
R45
10k
+Vr2
+Vr2
D17
BAS516
2, 3
4, 5
7, 8
10, 11
C33
0.1u
R29*
PMEG3002
C34
0.22u
R53
200R
R2
560k
C8
100p
1
6
Figure 7. Demo board DC1317A-D schematic
NOTE:
This schematic shows only the components required for operation of -D 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-D schematic to decide if any of the optional
components should be included in your design.
R17
560R
T2A
PE-68386
C14
10u
C12
470p
R19
56k
CS-
2
CS+
1
CG
3
Vcc
4
FG 5
GND 6
Timer 7
Sync 8
U5
LTC3900
R21
10k
R18
10k
R16
221K
C5
0.22u
Q9
BCX55
R10
4.7k
D9
PDZ10B
R8
2.2R
FG
CG
C7
220p
Out
C6*
BAS521
D7*
330p
L3*
BAS521
L4
10uH
R3
287
C3
1u
R5
10R
Inp
3
Vcc
1
TS 4
Boost 6
GND
2
TG 5
U2
LTC4440-5
C21
470p
D1
BAS516
Vu1
R9
47R
C11
3.3n
D6
B0540
+Vo1
24V @5A
Out
