DC1717A - Schematic

5
4
3
2
1
REVISION HISTORY
V1
VS1
J1
V1 (+12V)
E1
VS1
8 7
D1
SMBJ26CA
C1
OPT
1206
C2
OPT
2220
1
3
2
4
D13
BAT42WS-V
1. ALL RESISTORS ARE IN OHMS, 0603.
ALL CAPACITORS ARE IN MICROFARADS, 0603.
G1
2. INSTALL SHUNTS AS SHOWN ON JUMPERS.
VS2
E2
C3
OPT
1206
C4
OPT
2220
1
3
2
C21
0.047uF
50V
0805
4
VOUT
J3
1
FG2
D14
BAT42WS-V
VS3
D3
SMBJ26CA
J6
C8
OPT
1206
C9
OPT
2220
1
C22
0.047uF
50V
0805
4
FG3
18 17
21
2
UV2
R7
590K
0805
OV2
R8
69.8K
0805
R9
130K
0805
C11
1uF
50V
20
3
4
19
5
6
VS1 G1
V1
16 15
VS2 G2
OV1
VS3
V2
13
D15
BAT42WS-V
J4
GND
C
R35
240
1206
G3
VOUT
VALID1
VALID2
VALID3
UV2
OV2
SHDN
V3
HYS
UV3
OV3
CAS
EP
LED DRIVER
/VALID1
/VALID2
5V
R30
100k
/VALID3
5V
R31
100k
EN
R32
100k
B
7
E7
8
E8
9
E9
22
E10
E11
23
24
R11
127k
11
1
2
3
5V
HYS
RHYS
JP1
30mV
R33
100k
1
2
3
5V
EN
ON
R36
100k
OFF
JP2
VALID2
VALID3
EN
SHDN
JP3
E12
CAS
10
CUSTOMER NOTICE
R10
1.05M
0805
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.
R12
69.8K
0805
TECHNOLOGY
KIM T.
VLAD O.
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
PRIORITIZED POWERPATH CONTROLLER
3
N/A
SCALE = NONE
2
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900 www.linear.com
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
TITLE: SCHEMATIC
SIZE
4
VALID1
SHDN
1
ON
2
3
OFF
GND
R13
130K
0805
5
E6
G3
12
EN
25
OV3
14
U1
LTC4417CUF
UV1
V3
UV3
R28
249
C12
1uF
50V
5V
1
V2
C17
0.1uF
50V
0805
VOUT
2A MAX
1
OV1
R5
69.8K
0805
C10
1uF
50V
2
UV1
R4
1.69M
0805
R6
130K
0805
C19
0.1uF
50V
0805
1
FG3
V1
B
Q11
MMBT3904
2
2
C7
47uF
50V
SANYO
50CE47BS
D18
LN1351C
GRN
VOUT
6 5
Q3
Si7905DN
E4
C18
0.1uF
50V
0805
A
3
Q10
MMBTA42
2
8 7
C6 +
OPT
2220
E16
12
VS3
J5
GND
1
3
V3
R34
68k
1206
G2
C
C5
OPT
1206
3
2
R26
249
E3
12-11-12
6 5
Q2
Si7905DN
FG2
V3 (+8V)
DATE
VLAD O.
VS2
8 7
D2
SMBJ26CA
APPROVED
D
1
2
V2 (+5V)
DESCRIPTION
PRODUCTION
NOTES: UNLESS OTHERWISE SPECIFIED
FG1
R23
249
V2
3
C20
0.047uF
50V
0805
FG1
J2
REV
__
6 5
Q1
Si7905DN
D
ECO
DATE:
IC NO.
LTC4417CUF
DEMO CIRCUIT 1717A
12/11/2012, 01:19 PM
REV.
3
SHEET
1
1
OF
2
A
5
4
3
2
1
OPTIONAL CIRCUIT
1
12
1
14
VS3
VDD
3
5V
GND
2
7
Q7
FDD4685
VOUT
3
8
2
9
10
11
V2
1
1
FG3
V3
Q8
FDD4685
1
Q9
FDD4685
VOUT
2
2
D7
MMSZ5231BT1G
5.1V
OPT
6
Q6
FDD4685
2
1
EN
3
4
5
3
3
VS2
FG2
R19
30.9K
Q5
FDD4685
VOUT
D
1
2
13
/VALID3
1
2
V1
U2
74HC27PW
Q4
FDD4685
2
FG1
D
3
3
VS1
C
C
VOUT POWER SOURCE
U3
74HC27PW
D8
LN1351C
1
1
2
13
/VALID1
D9
LN1351C
6
7
E15
A
2
D10
LN1351C
5V
GND
VDD
1
14
2
1
3
4
5
/VALID3
9
10
11
7
2
R22
1k
VALID1
GRN
12
D11
LN1351C
6
1
2
R20
1k
VALID2
GRN
8
D16
LN1351C
5V
GND
OUT
ADJ
E13
7
R17
845k
OPT
C16
10nF
10V
0805
C14
10uF
10V
0805
C15
1uF
50V
LDO
D12
LN1351C
GRN
VDD
1
14
2
R21
1k
B
VALID3
GRN
R18
115k
OPT
R29
1k
5V
CUSTOMER NOTICE
4
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.
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
5
D17
LN1351C
1
5V
6
1
IN
SHDN
/VALID2
V3
GRN
U4
LT3060ETS8-5
5
1
2
13
R16
1k
2
GND
C13
1uF
50V
8
2
3 GND
4 GND
GND
8
REF/BYP
AUXILIARY VOLTAGE INPUT
6V - 24V
E14
1
R15
1k
/VALID1
V2
GRN
9
10
11
B
R14
1k
V1
GRN
12
3
4
5
/VALID2
2
VALID STATUS
U5
74HC27PW
3
TECHNOLOGY
KIM T.
VLAD O.
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900 www.linear.com
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
TITLE: SCHEMATIC
PRIORITIZED POWERPATH CONTROLLER
SIZE
N/A
SCALE = NONE
2
DATE:
IC NO.
LTC4417CUF
DEMO CIRCUIT 1717A
12/11/2012, 01:19 PM
REV.
3
SHEET
1
2
OF
2
A
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