20
dc1540bf
DEMO MANUAL DC1540B
SCHEMATIC DIAGRAM
5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
ALERTB
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
VDACP0 VDACM0
VOUT_EN0
VIN_SNS
CONTROL1
SDA
SCL
CONTROL0
VIN_EN
VOUT_EN1 VOUT_EN2 VOUT_EN3 VOUT_EN4 VOUT_EN5 VOUT_EN6 VOUT_EN7
VDACP1 VDACM1
VDACP2 VDACM2
VDACP3 VDACM3
VDACP4 VDACM4
VDACP5 VDACM5
VDACP6 VDACM6
VDACP7 VDACM7
PWRGD
FAULTB00
FAULTB01
FAULTB10
FAULTB11
WDI/RESETB
VSENSEP0 VSENSEM0
VSENSEP1 VSENSEM1
VSENSEP2 VSENSEM2
VSENSEP3 VSENSEM3
VSENSEP4 VSENSEM4
VSENSEP5 VSENSEM5
VSENSEP6 VSENSEM6
VSENSEP7 VSENSEM7
ALERTB
SHARE_CLK
SIZE
DATE:
DWG NO.
REV
SHEET
OF
TITLE:
CONTRACT NO.
APPROVALS
DRAWN:
CHECKED:
APPROVED:
ENGINEER:
DESIGNER:
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 CIRUIT 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.
A
DC1360B
Thursday, August 01, 2013
1
4
LTC2977IUP
CHRIS P.
DAVE C.
B
LTC2977 8-CHANNEL PM BUS POWER SYSTEM MANAGER
SIZE
DATE:
DWG NO.
REV
SHEET
OF
TITLE:
CONTRACT NO.
APPROVALS
DRAWN:
CHECKED:
APPROVED:
ENGINEER:
DESIGNER:
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 CIRUIT 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.
A
DC1360B
Thursday, August 01, 2013
1
4
LTC2977IUP
CHRIS P.
DAVE C.
B
LTC2977 8-CHANNEL PM BUS POWER SYSTEM MANAGER
SIZE
DATE:
DWG NO.
REV
SHEET
OF
TITLE:
CONTRACT NO.
APPROVALS
DRAWN:
CHECKED:
APPROVED:
ENGINEER:
DESIGNER:
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 CIRUIT 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.
A
DC1360B
Thursday, August 01, 2013
1
4
LTC2977IUP
CHRIS P.
DAVE C.
B
LTC2977 8-CHANNEL PM BUS POWER SYSTEM MANAGER
TO OTHER LTC2977's (SHEET 2)
CONTROL1
CONTROL0
PCB LAYOUT NOTES: PLACE BYPASS CAPS C8 AND C10 AS CLOSE TO U1 AS POSSIBLE. PLACE C9 VERY NEAR U1 PINS 34 & 35
CONTROL1
CONTROL0
POWER GOOD
LO
LO
HI
HI
WDI/RESETB
TANT. 35V
VIN_SNS_IN
HI
HI
GND
GND
ON
OFF
LTC2977 WRITE- PROTECT
ALERTB
JP2 ASEL1
JP2 ASEL1
D2D2
TP9TP9
R70
0
R70
0
R5 10K
R5 10K
U1
LTC2977 IUP
U1
LTC2977 IUP
VOUT_EN4
8
VOUT_EN5
9
VOUT_EN6
10
VOUT_EN7
11
VIN_EN
12
NC
13
VIN_SNS
14
VPWR
15
VDD33_OUT
16
VDD33_IN
17
VDD25
18
WP
19
PWRGD
20
SHARE_CLK
21
WDI/RESET
22
FAULTB00
23
FAULTB01
24
FAULTB10
25
FAULTB11
26
SDA
27
SCL
28
ALERTB
29
CONTROL0
30
CONTROL1
31
ASEL0
32
ASEL1
33
REFP
34
REFM
35
VSENSEP0
36
VSENSEM0
37
VDACM0
38
VDACP0
39
VDACP1
40
VDACM1
41
VSENSEP1
42
VSENSEM1
43
VDACP2
44
VDACM2
45
VSENSEP2
46
VSENSEM2
47
VSENSEP3
48
VSENSEM3
49
VDACP3
50
VDACM3
51
VSENSEP4
52
VSENSEM6
1
VSENSEP7
2
VSENSEM7
3
VOUT_EN0
4
VOUT_EN1
5
VOUT_EN2
6
VOUT_EN3
7
VSENSEM4
53
VDACM4
54
VDACP4
55
VDACP5
56
VDACM5
57
VDACM6
58
VDACP6
59
VDACP7
60
VDACM7
61
VSENSEP5
62
VSENSEM5
63
VSENSEP6
64
E-PAD
65
TP11TP11
C8
100nF
C8
100nF
R15
100
R15
100
C59
1.0uF
C59
1.0uF
Q1
2N7002
Q1
2N7002
R60
100
R60
100
R1 10K
R1 10K
TP8TP8
R11 10K
R11 10K
R71
10
R71
10
TP17TP17
R63 0
R63 0
TP13TP13
TP1TP1
TP16TP16
TP6TP6
R9
0
R9
0
TP7TP7
JP5JP5
R64
0
R64
0
R75 10K
R75 10K
C16 0.01uF
C16 0.01uF
R8 75
R8 75
R16
100
R16
100
SW1
SW1
R59 100
R59 100
R6 10K
R6 10K
R4
10K
R4
10K
SW3SW3
JP6
SHARE_CLK
JP6
SHARE_CLK
R7 10K
R7 10K
C17
0.01uF
C17
0.01uF
JP3 ASEL0
JP3 ASEL0
C10
100nF
C10
100nF
TP12TP12
TP15TP15
SW2
SW2
C9 100nF
C9 100nF
R3 10K
R3 10K
TP10TP10
R2 10K
R2 10K
D1D1
R10 200
R10 200
C12
0.01uF
C12
0.01uF