9
dc1033bf
DEMO MANUAL DC1033B
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
V2(WALL)
2.7V - 28V
50V
V1(BAT)
2.7V - 28V
PFI
M2
PB#
GND
50V
VS
VM
50V
INT# / KILL#
UNTIE
TIE
OFFTONT
CAP
OPEN
CAP
OPEN
H I
LO
M1
GND
GND
GND
GND
16V
M1CONFG
M2CONFG
V2MON
LO
TIEM1
2P6V
0 (OPT)
NOTE 2
0 (OPT)
NOTE 4
NOTE 5
NOTE 3
EN
OPT
OPT
50V
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1. ALL RESISTORS AND CAPACITORS ARE 0603.
NOTE: UNLESS OTHERWISE SPECIFIED
2. BYPASS V1 SECOND FET OPTION WITH 0 OHM RESISTOR.
3. BYPASS V2 SECOND FET OPTION WITH 0 OHM RESISTOR.
4. REMOVE R3 AND INCLUDE R17 TO MONITOR V2 AT PFI.
5. REMOVE R1 AND INCLUDE R16 FOR VM TO MONITOR VS
INSTEAD OF DC/DC OUTPUT VOLTAGE.
6. CV1, CV2 SHOULD BE SMALL IF NEEDED.
G1STAT
PFO#
RST#
INT#
KILL#
WDE
PB#
TO MICROPROCESSOR
PFI
PFO#
G1STAT
INT#
PB#
M1
V1
G1
RST#
VM
V2
KILL#
G2
M2
EN
2P6V
VS
WDE
VS
VS
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
1
DEMO CIRCUIT 1033B
Monday, August 31, 2015
1
1
PUSHBUTTON ON/OFF POWERPATH CONTROLLER
N/A
LTC2952CUF
KIM T.
DILIAN R.
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
1
DEMO CIRCUIT 1033B
Monday, August 31, 2015
1
1
PUSHBUTTON ON/OFF POWERPATH CONTROLLER
N/A
LTC2952CUF
KIM T.
DILIAN R.
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
1
DEMO CIRCUIT 1033B
Monday, August 31, 2015
1
1
PUSHBUTTON ON/OFF POWERPATH CONTROLLER
N/A
LTC2952CUF
KIM T.
DILIAN R.
REVISION HISTORY
DESCRIPTION DATEAPPROVEDECO REV
DILIAN R.
REBUILD WITH CHANGE
__
1 08-31-15
REVISION HISTORY
DESCRIPTION DATEAPPROVEDECO REV
DILIAN R.
REBUILD WITH CHANGE
__
1 08-31-15
REVISION HISTORY
DESCRIPTION DATEAPPROVEDECO REV
DILIAN R.
REBUILD WITH CHANGE
__
1 08-31-15
R15
100k
J2
D5
RED
INT#
2 1
E14
D4
GRN
SUP_EN
2 1
JP3
1
3
2
R16
511k
E7
E8
D2
ORN
G1STAT
2 1
JP2
2
4
6
1
3
5
E17
E6
JP4
1
3
2
R10
100k
E4
R11
100
R5
100
E15
R9
845k
E1
E18
R3
511k
CO
0.47uF
R4
100k
C2
1nF
C1
0.1uF
E12
R7
100
R14
100k
JP1
1
3
2
E3
CONT
0.022uF
E2
E22
E20
E13
COFFT
0.068uF
CV2
OPT
R8
100
E21
E9
R1
365k
R13
105k
R18
100k
U4
LT3010EMS8E
IN
8
/SHDN
5
GND
4
OUT
1
ADJ
2
GND
9
J1
D1
ORN
RST#
2 1
E10
U3
Si7923DN
D1
8
D1
7
S1
1
G1
2
G2
4
S2
3
D2
5
D2
6
R6
100
R12
1k
R17
511k
D3
ORN
PFO#
2 1
E19
JP5
1
3
2
U2
Si7923DN
D1
8
D1
7
S1
1
G1
2
G2
4
S2
3
D2
5
D2
6
U1
LTC2952
G1
16
V1
15
V2
13
PFI
2
M2
18
M1
19
PB#
4
GND
9
ONT
7
OFFT
8
WDE
3
KILL#
20
INT#
10
RST#
5
PFO#
6
G1STAT
17
EN
11
VM
1
VS
14
G2
12
GND
21
CV1
OPT
SW1
12
CVS
0.47uF
R2
100k
E5
E11
