DC438A - Schematic

3
Q1,Q6, Q10 ARE Si7860DP.
Q2,Q5,Q9 ARE OPTIONAL.
Q3, Q4, Q7, Q8, Q11, Q12 ARE Si7892DP.
VIN+
(SO8-POWERPAK)
S3+
B
R12 10
S2-
R13 10
S3-
R14 10
S3+
R15 10
15 SENSE3+
TG3 22
16 RUN/SS
BOOST3 21
17 ITH
CLKMD 20
C4
1000PF
18 UVADJ
C5
1000PF
NC 19
C7
0.1UF
R16
4.75K
SGND
ITH
E8
E9
C9
100PF
1
2
3
1
CIN4-CIN6
10UF,16V
1210
CIN7-CN9
OPT
J2
1210
VIN-
2
Q9
OPT
4
VOS+
0
JP4
PHASMD
Q11
4
VOUT+
S2-
S2+
SANYO POSCAP
4TPD330M
OPT
7343
+ COUT3-COUT8
[email protected]
J5
VOUT+
330UF 4V
7343
J4
VOUT-
1210
R26
OPT
1
2
SUMIDA-CEP125
D2
B340A
C
J3
VOUT+
1
+COUT1,2,9,10
VOS+
2
3
4
5
S2+
R28
51.1
1%
VOUT+
C20
10UF,16V
L3
0.8UH
Q12
4
E5
VOS+
S2-
5
6
7
8
1
R25
0.002
C19
1UF,16V
0805
Q10
4
R18 VIN+
357K
R31
OPT
R29
51.1
1%
R27
0.002
VOUTVOS-
E6
VOS-
VOSB
+5V
NOTES: UNLESS OTHERWISE SPECIFIED
ITH
1. ALL RESISTORS ARE IN OHMS, 0603.
ALL CAPACITORS ARE IN MICROFARADS, 0603.
ALL INDUCTORS ARE IN MICROHENRIES.
A
2. INSTALL SHUNTS FOR JP1-JP7 PIN 2 AND 3.
CONTRACT NO.
APPROVALS
DRAWN:
TECHNOLOGY
KIM T.
CHECKED:
ENGINEER:
WEI C.
3-PHASE HIGH EFFICIENCY 60A POWER SUPPLY
SIZE
A
DATE:
4
3
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
TITLE:
APPROVED:
DESIGNER:
5
OPT
C53
1000PF
C8
1500PF
R19
OPT
+ CIN3
2
R17
121K
OPT
VIN-
2
C23
0.01UF
R30
499K
RUN/SS
1
2
SUMIDA-CEP125
D5
B340A
Q8
4
1
2
3
E2
RUN/SS
L2
0.8UH
1
2
3
Q7
4
Q6
4
VIN+
D3 +5V
BAT54
3
1
1
2
VIN+
1
2
3
1
2
3
C12
4.7UF
16V
1206
Q5
OPT
4
+5V
C10 0.22UF
LTC3731CG
C6
1000PF
5
6
7
8
5
6
7
8
2
C11
1UF
R20
1
5
6
7
8
BG3 24
SW3 23
+ CIN2
S3-
S3-
S2+
13 SENSE214 SENSE3-
J1
S3-
S2-
R11 10
PGND 26
BG2 25
DRVIN
S3+
S2+
S1-
R10 10
11 SENSE112 SENSE2+
270UF
16V
R24
OPT
S3+
S1-
S1+
DRVIN 28
BG1 27
1
S1+
9 SGND
10 SENSE1+
+ CIN1
1210
1
2
3
R8 16.9K,1%
20.0k,1%
JP3
VOUT SEL C22
1
1.8V 2.5V 47PF
PG
VIN+
9V-14V
C18
10UF,16V
C17
1UF,16V
0805
5
6
7
8
3
D4
B340A
1
2
3
OPT
5
6
7
8
C21
TG2 30
SW2 29
3
C
7 DIFFOUT
8 EAIN
2
1
SUMIDA-CEP125
1
2
3
VOS-
R7
CLKOUT
OSCON
16SP270M
R23
0.002
VIN+
C13
0.22UF
5
6
7
8
10.0K,1%
2
R6
SW1 32
BOOST2 31
E4
VIN+
R22
OPT
L1
0.8UH
Q4
4
1
2
3
VOS-
5 DIFF+
6 DIFF-
Q3
4
5
6
7
8
2
VOS+
BOOST1 34
TG1 33
1
2
3
CCM STG SHD
VOS+
3 PLLFLTR
4 FCB
5
6
7
8
1
C14
0.22UF
1
2
3
JP2
FCB
3
CLKOUT 36
PGOOD 35
1
C3
1000PF
1
U1
1 VCC
2 PLLIN
PG
1210
C15
1UF,16V
0805
Q2
OPT
4
1
2
3
JP1
FREQ
1
R5
C2
10.0K,1% 0.01UF
Q1
4
E3
D
S1-
D1
BAT54A
3
R4
2.43K
EXT
SYNC
2
INT
PROG
5
6
7
8
R3
7.50K
CLKOUT
C16
10UF,16V
S1+
R21 +5V
100K
C1
1UF
3
R1
10
S1+
+5V
R2
1K
D
1
S1-
SYNC-IN
2
5
6
7
8
E1
SYNC-IN
4
5
6
7
8
5
2
DWG NO.
REV
DC438A-3 * LTC3731CG
Thursday, April 17, 2003
SHEET 1
1
A
OF
2
A
5
4
3
2
1
DYNAMIC LOAD CIRCUIT
D7
MMBZ5231BLT1
1
3
2
CMDSH-3
C35
0.01UF
0.1UF
50K
4
1
R34
+
6
-
7
R36 1K
3
R35
10.0K,1%
U5
LT1460HCS3-2.5
IN
2
OFF
2
ON
1
JP7
DLC
3
5
+
-
7
1
Q13
SUD50N03-07
R40
0.01
2512
R39 2K
R43
10.0K,1%
C25
1206
4.7UF
16V
C26
0.1UF
R42
0.01
2512
LOAD STEP
VOUT-
C
VOUT+
OUT 2
-12V
C48-C52
47UF,6.3V
1812
JP5
DLC BIAS
4
SHDN
U6
LT1930ES5
R44
115K
1%
FB 3
C42
4.7UF
16V
1206
C41
10PF
VIN+
L5B
CLS62
R9
13.3K
1%
D8
B0540W
1
2
C44
1UF
C43
4.7UF
16V
1206
U7
1
VIN
2
GND
3
SHDN
INT
3
OUT 5
C45
0.1UF
BYP 4
C46
4.7UF
16V
1206
EXT
1
JP6
5V SELECT
2
L5A
CLS62
3
2
3
OFF
+5V
C47
1UF
2 4
ON
2
1206
SW 1
C38
1UF,16V
0805
D6
+12V
B0540W
2
1
+12V
VIN 5
+5V
1
3
CMD4D08-100
GND
C39
4.7UF
16V
1206
1
B
C40
1UF, 25V
L4
10UH
1
VIN+
C32
0.1UF
J6
1
3
1
R37
15K
R38
50K
IMAX 2
ADJ.
50K
SLOPE UP
+12V
4
U3B
LT1361CS8
2
-
1
5
C30,C31,C54,C55,C56
22UF
6.3V
1206
0.01UF
3
2
U3A
LT1361CS8
6
3
+
1
R33
3
C29
U4
LT1210CR
VOUT+
2
3
4
5
D10
1
C
C34
0.1UF
1
C28
3
2
1
+12V C37
0.1UF
1
2
CMDSH-3
1
R32
1.5K
D9
GND
TRIG
RSET
DSCH
THRES
CON
TLC555CD
OUT 3
2
GND VDD 8
2
4
7
6
5
R41
39K
4.7UF
16V
8
SLOPE DOWN
U2
C27
1206
3
C33
0.1UF
C36
100PF
8
+5V
D
+12V
4
D
E7
B
+5V
LT1761ES5-5
INTERNAL BIAS
-12V
CONTRACT NO.
APPROVALS
DRAWN:
A
TITLE:
APPROVED:
ENGINEER:
DESIGNER:
TECHNOLOGY
KIM T.
CHECKED:
WEI C.
3-PHASE HIGH EFFICIENCY 60A POWER SUPPLY
SIZE
A
DATE:
5
4
3
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
2
DWG NO.
REV
DC438A-3 * LTC3731CG
Thursday, April 17, 2003
SHEET 2
1
A
OF
2
A
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