5
dc2161af
DEMO MANUAL DC2161A
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa-
tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.
SCHEMATIC DIAGRAM
5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
NOTE: UNLESS OTHERWISE SPECIFIED
1. ALL CAPACITORS ARE IN MICROFARADS, 0402. 2. ALL RESISTORS ARE IN OHM, 0402.
B
ASSY A
U1
LTC4231-1 LTC4231-2
*
SUFFIX
1 2
*
ON EXT OFF
IN
GATE
SOURCE
OUT
SENSE
REVISION HISTORY
DESCRIPTION
DATE
APPROVED
ECO
REV
BOB S.
PRODUCTION
2
08-06-14
__
REVISION HISTORY
DESCRIPTION
DATE
APPROVED
ECO
REV
BOB S.
PRODUCTION
2
08-06-14
__
REVISION HISTORY
DESCRIPTION
DATE
APPROVED
ECO
REV
BOB S.
PRODUCTION
2
08-06-14
__
SIZE
DATE:
IC NO.
REV.
SHEET
OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY
Fax: (408)434-0507
Milpitas, CA 95035 Phone: (408)432-1900
1630 McCarthy Blvd.
LTC Confidential-For Customer Use Only
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
SCHEMATIC
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
SCALE = NONE
www.linear.com
2
Wednesday, August 06, 2014
11
MICROPOWER HOT SWAP CONTROLLER
KIM T.
BOB S.
N/A
LTC4231IMS-1/ 2 DEMO CIRCUIT 2161A
SIZE
DATE:
IC NO.
REV.
SHEET
OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY
Fax: (408)434-0507
Milpitas, CA 95035 Phone: (408)432-1900
1630 McCarthy Blvd.
LTC Confidential-For Customer Use Only
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
SCHEMATIC
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
SCALE = NONE
www.linear.com
2
Wednesday, August 06, 2014
11
MICROPOWER HOT SWAP CONTROLLER
KIM T.
BOB S.
N/A
LTC4231IMS-1/ 2 DEMO CIRCUIT 2161A
SIZE
DATE:
IC NO.
REV.
SHEET
OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY
Fax: (408)434-0507
Milpitas, CA 95035 Phone: (408)432-1900
1630 McCarthy Blvd.
LTC Confidential-For Customer Use Only
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
SCHEMATIC
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
SCALE = NONE
www.linear.com
2
Wednesday, August 06, 2014
11
MICROPOWER HOT SWAP CONTROLLER
KIM T.
BOB S.
N/A
LTC4231IMS-1/ 2 DEMO CIRCUIT 2161A
R7 8.45k
R7 8.45k
C1 0.1uF 0603
C1 0.1uF 0603
E5
STATUS
E5
STATUS
U1 LTC4231
U1 LTC4231
IN
2
ON
3
GND
8
GNDSW
7
STATUS
9
SOURCE
11
SENSE
1
UVL
4
GATE
12
UVH
5
OV
6
TIMER
10
R6 1.24M 0805
R6 1.24M 0805
E9
ON
E9
ON
R2 0.015
1206
1/4W
R2 0.015
1206
1/4W
E6
GND
E6
GND
E10
TIMER
E10
TIMER
C2 OPT
C2 OPT
R3 10
R3 10
E8
GND
E8
GND
R8 23.7k
R8 23.7k
JP1
UV/OV
ENABLE
DISABLE
HD1X3-079
JP1
UV/OV
ENABLE
DISABLE
HD1X3-079
1
3
2
R5 12.1k 0603
R5 12.1k 0603
R9 66.5k
R9 66.5k
Q1A
Si7960DP
Q1A
Si7960DP
2
7
8
1
J2
GND
J2
GND
E1E1
R10 100k
R10 100k
E2E2
J1
VIN 12V
J1
VIN 12V
Q1B
Si7960DP
Q1B
Si7960DP
4
5
6
3
JP2 IQ
NORMAL
MEASURE IQ
JP2 IQ
NORMAL
MEASURE IQ
1
3
2
D1 SMBJ24CA
D1 SMBJ24CA
1
2
R4 OPT
R4 OPT
D2 GREEN
D2 GREEN
2
1
C4 0.082uF
C4 0.082uF
J4
GND
J4
GND
E4E4
R11 100k
R11 100k
R1 10 0603
R1 10 0603
J3
VOUT 12V, 3A
J3
VOUT 12V, 3A
E3E3
JP3
HD2X3-079
ENABLE
JP3
HD2X3-079
ENABLE 1 3 5
6
4
2
E7
IQ
E7
IQ
+
C3 100uF 25V 7343
+
C3 100uF 25V 7343
