DC1594A - Schematic

1
2
3
4
5
6
NOTE: UNLESS OTHERWISE SPECIFIED
ECO
1. ALL RESISTORS ARE IN OHMS 0603
A
REV
__
ALL CAPACITORS ARE IN MICROFARADS 0603
7
REVISION HISTORY
DESCRIPTION
1
APPROVED
DATE
VLAD O.
12/2/09
PRODUCTION
A
VDD
E1
R2
3.3K
1
+ CIN1
(Opt.)
1
R1
3.3K
1
VDD
12V or 5V
D2
LED
(GREEN)
D3
LED
(RED)
U1*
E2
R3
3.3K
TIMER
INTVCC
EN1
E6
3
EN2
E7
12
E9
C1
0.1uF
16V
E12
5
13
GATE
10
TIMER
11
E8
ISET
15
E10
IMON
14
E11
RMON
20K
0805
3
2
1
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
2
RSET
(Opt.)
0805
3
ISET
4
K.L.
APP ENG.
VLAD O.
U1
-A
LTC4219IDHC-12
-B
LTC4219IDHC-5
TECHNOLOGY
TITLE: SCHEMATIC
SIZE
N/A
SCALE = NONE
5
DATE:
IC NO.
C
ASSY.
APPROVALS
PCB DES.
IMON
*
ENABLE2
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.
1
PG
INTVCC
CUSTOMER NOTICE
D
GND
B
PG
JP3
EN2
DISABLE2
ENABLE1
DISABLE1
OFF
ON
JP2
EN1
OUT
12V / 5.4A
or
5V / 5.4A
D4
LED
(GREEN)
D5
LED
(EMBER)
RGATE
(Opt.)
C
JP1
CT
E4
1
R6
(Opt.)
CGATE
(Opt.)
FLT
C2
0.1uF
16V
VDD
3
2
1
3
2
1
VDD
4
FB
R5
3.3K
+ COUT2
(Opt.)
2
2
R4
(Opt.)
9
8
7
1
E5
OUT
OUT
OUT
+ COUT1
22uF
25V
2
FLT
VDD
VDD
GND
EN2
1
16
6
EN1
E3
2
GND
2
2
D1
SMAJ22A
B
8
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900 www.linear.com
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
POSITIVE 12V INTEGRATED HOT SWAP /
POSITIVE 5V INTEGRATED HOT SWAP
6
REV.
LTC4219IDHC-12 / LTC4219IDHC-5
DEMO CIRCUIT 1594A-A/B
Wednesday, December 02, 2009
7
D
1
SHEET 1
8
OF 1
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