DC1217A - Schematic

5
4
3
2
1
VIN
E1
MAIN
VIN
TP3
CPO
2
ENLDO1
3
ENLDO2
CPO
C2M
C2P
JP3
ENLDO1 1
5
11
1.8V
V+
HI
7
D4
D5
TP4
D
M2
TP6
MLED2
8
MLED3
9
MLED4
10
M3
TP7
M4
TP8
SLED
6
LDO1
15
LDO2
14
S1
E3 LDO1
1.2V - 1.8V
0 - 200mA
C4
1.0uF
10V
PGND
V2
D3
M1
E4 LDO2
1.8V - 3.3V
0 - 200mA
C5
1.0uF
10V
21
12
U1
LTC3230EUD
MLED1
RSET
2.8V
V1
4
3.3V
13
ENS
JP2
V2 1
VIN
ENM
18
C3
2.2uF
10V
C1M
C1P
1.2V
D2
TP5
1.8V
1.5V
D1
C6
1.0uF
10V
16
17
20
JP1
V1 1
C2
1.0uF
10V
19
C1
1.0uF
10V
E2
1
GND
D
SUB
C7
4.7uF
6.3V
2.7V - 5.5V
E5
R1
17.4K
1%
C
LO
GND
C
VIN
Q1A
V+
JP4
ENLDO2 1
+5V
R2
5.1K
5%
HI
LO
R3
5.1K
5%
Q2A
1
TP9
ENM CNTL
0.1uF
16V
Q2B
DC590
ENM
JP5
E6
B
+5V
EXT
R6
1.0M
5%
EXT ENM
0V - VIN
R7
TP1
TP2
C10
0.1uF
16V
SDA
+5V
J1
+
+
+
+
+
+
+
+
+
+
+
+
+
+
3
SET
2
VDD
VSS
14
6
RC4
RC1
9
8
RC2
RC3
7
5
RC5
RC0
10
3
RA4
RA2
11
4
MCLR#
RA0
13
2
RA5
RA1
12
Q1B
R4
5.1K
5%
R5
5.1K
5%
Q3A
ENS
CNTL
1
B
TP10
DC590
Q3B
PIC16F630I/ST
ENS
EXT
OUT
5
DIV
4
+5V
GND
SW1
PIC
RESET
R9
100K
5%
R8
PIC
J2 PROG
4 4
2
2
5
5
3
3
1
1
6
6
JP6
E7
1.0M
5%
EXT ENS
0V - VIN
WARNING!
Do not look directly at operating LED.
Serious eye damage may occur.
C11
0.1uF
16V
U2
Vcc
R12
5.1K
5%
SCLK
1
2
3
A0
A1
A2
7
SDA
5
Vss
6
WP
R11
5.1K
5%
4
24LC025
5
5.11K
1%
V+
1N4148
1
OPT
HD2X7
A
R10
1
C9
0.1uF
16V
LTC1799
2
4
6
8
10
12
14
8
1
3
5
7
9
11
13
D6
10K
5%
U4
SCL
V+
U3
VIN
C8
4
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.
3
CONTRACT NO.
APPROVALS
DRAWN
M. Merchant
DATE
1/12/07
CHECKED
A
TITLE
LTC3230EUD, 5-LED Main/Sub Display Driver with Dual LDO
APPROVED
ENGINEER M. Merchant
TECHNOLOGY
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900
Fax: (408)434-0507
1/12/07
DESIGNER
Friday, September 28, 2007
SIZE CAGE CODE
SCALE:
2
FILENAME:
DWG NO
REV
A
DC1217A
SHEET
1
1
OF
1
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