DC1100A - Schematic

T1
PA1277NL
E3
R1
220k
1206
Q1
MMBTA42
3
Cin1
2.2uF
100V
1
D2
PDZ6.8B
R2
100k
1206
4
5
6
3
7
8
E1
Co1
100uF
6.3V
D1
R3
68
1206
Co2
100uF
6.3V
Co3
100uF
6.3V
Co4
100uF
6.3V
opt.
E4
PDS1040
+Vout
3.3V, 3A
GND
D6
BAS516
C1
150pF
Vcc
U1
LTC3803ES6-3
1 Ith/Run
R10
80.6k
R6
opt.
Vu1
Q2
FDC2512
1
2
5
6
Ith
G 6
2 GND
Vin 5
3 Vfb=0.8V
Sns 4
Vcc
3
D3
R4
22 BAS516
2
1
C2
0.1uF
R7
4.7k
C3
0.1uF
10V
R16
10
Vu1
R5
680
4
-Vin
E2
2
+Vin
18V to 72V
+Vout
Rcs
0.040
1206
+Vout
R9
opt.
1206
D7
BAT760
+Vout
Vcc
Ith
D4
BAS516
R11
R12
6.8k
4
U3
3
1
2
270
U2
C4
0.1uF
1 VIN
OPTO 6
2 GND
COMP 5
C7
0.33uF
PS2801-1
3 OC
D5
BAS516
FB 4
LT4430ES6
+Vout
C5
R13
C6
2.2nF
56k
47pF
R15
R14
22.1k
100k
C8
2200pF
250V
CUSTOMER NOTICE
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
CONTRACT NO.
APPROVALS
DRAWN
June Wu
DATE
4/27/06
CHECKED
TECHNOLOGY
TITLE
LTC3803ES6-3
18V-72Vin to [email protected] Isolated DC/DC Converter
APPROVED
ENGINEER Goran Perica
4/27/06
DESIGNER
Tuesday, November 07,2006
SIZE
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900
Fax: (408)434-0507
CAGE CODE
SCALE:
FILENAME:
DWG NO
REV
DC1100A
SHEET
A
1
OF
1
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