DC1542A - Schematic

5
4
3
2
1
REVISION HISTORY
ECO
REV
__
VOUT
VIN
VIN
E6
6V - 55V
D
+
C9
4.7uF
63V
DESCRIPTION
APPROVED
PRODUCTION
2
DATE
WALKER B. 05-12-10
VOUT
C3
2.2uF
100V
1210
L1
100uH
C7
2.2uF
100V
1210
CDRH8D43HP-101NC
GND
C2
4.7uF
50V
1206
R7
270K
0603
E5
E1
R1
93.1K
C1
4.7uF
50V
1206
D
LED1-
VOUT
E2
R4
3.01K
LED2E3
D4
OPT
LED3-
EN/UVLO
1
ON
2
OFF
3
R9
91K
E4
D1
bias
DFLS160
1
E14
C8
4.7uF
25V
0805
2
C4
0.22uF
0603
fault
JP1
C
50
VREF
R11 100K
30
R12 100K
29
R13 100K
28
33
CTRL3
E11
E12
37
FAULT
BIAS
24
LED3
21
LED2
20
LED1
VOUT
FB
2
19
44
48
25
6
R19
49.9K
13
R21
100K
0603
PWM2
PWM3
CTRL1
CTRL2
GND
31
C
CTRL3
R17 100K
t
9
53
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
E10
CTRLM
GND
32
R14 100K
PWM1
ISET3
CTRL2
TSET
R16
82.5K
EN/UVLO
ISET2
CTRL1
VIN
ISET1
PWM3
E9
7
R15
8.87K
RT
PWM2
E8
4
E7
FAULT
VREF
VREF
VIN
SYNC
PWM1
51
DA
BOOST
E16
SW
46
E15
EN/UVLO
BIAS
R10
100K
R22
33.2K
R23
20K
R24
20K
11
12
18
22
23
26
34
35
39
41
43
16
15
14
R18 100K
17
B
27
B
R25
20K
U1
LT3596EUHG
SYNC
E13
R20
10K
NOTE: UNLESS OTHERWISE SPECIFIED
CUSTOMER NOTICE
1. ALL RESISTORS ARE 0402
A
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
5
APPROVALS
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO PCB DES.
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APP ENG.
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
4
3
TECHNOLOGY
AK
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900 www.linear.com
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
WALKER B TITLE: SCHEMATIC
60V STEP-DOWN 3-CHANNEL LED DRIVER
SIZE
N/A
SCALE = NONE
2
DATE:
IC NO.
LT3596EUHG
REV.
2
DEMO CIRCUIT 1542A
Friday, June 25, 2010
SHEET 1
1
OF 1
A
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