ltc2978 Linear Technology Corporation, ltc2978 Datasheet - Page 62

• Manufacturer Part Number: ltc2978
• Description: Octal Pmbus Power Supply Monitor And Controller With Eeprom
• Manufacturer: Linear Technology Corporation

LTC2978
Typical applicaTion

V
RUN/SS
V
RUN/SS
IN
IN
CONVERTER
IN
CONVERTER
INTERMEDIATE
CONVERTER
DC/DC
DC/DC
GND
GND
BUS
SGND
SGND
V
V
OUT
OUT
V
V
FB
FB
OUT
EN
R30
R32
R20
R10
R22
R12
LOAD
LOAD
Figure 22. LTC2978 Application Circuit with 3.3V Chip Power
40
37
38
39
41
43
44
42
45
47
48
46
51
49
50
52
5
6
7
8
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
3.3V
DACP0
SENSEP0
SENSEM0
DACM0
OUT_EN0
DACP1
SENSEP1
SENSEM1
DACM1
OUT_EN1
DACP2
SENSEP2
SENSEM2
DACM2
OUT_EN2
DACP3
SENSEP3
SENSEM3
DACM3
OUT_EN3
5.49k
10k
13
14
24
0.1µF
36?
25
35
26
TO/FROM OTHER LTC2978s AND MICROCONTROLLER
65
27
0.1µF
20
22
LTC2978
19
28
0.1µF
18
29
17
30
16
31
3.3V
34
32
33
21
15
23
10k
10k
V
V
V
V
V
V
V
V
V
V
V
V
SENSEM7
SENSEM6
SENSEM5
SENSEM4
OUT_EN7
OUT_EN6
OUT_EN5
OUT_EN4
SENSEP7
SENSEP6
SENSEP5
SENSEP4
V
V
V
V
V
V
V
V
DACM7
DACM6
DACM5
DACM4
DACP7
DACP6
DACP5
DACP4
3.3V
61
3
4
62
12
60
1
2
59
11
57
63
64
58
10
56
53
54
55
9
LOAD
LOAD
LOAD
LOAD
R27
R17
R26
R16
R25
R15
R24
R14
R37
R36
R35
R34
V
V
SGND
V
V
SGND
V
V
SGND
V
V
SGND
CONVERTER
CONVERTER
CONVERTER
CONVERTER
OUT
FB
OUT
FB
OUT
FB
OUT
FB
DC/DC
DC/DC
DC/DC
DC/DC
GND
GND
GND
GND
RUN/SS
RUN/SS
RUN/SS
RUN/SS
V
V
V
V
IN
IN
IN
IN
2978 F12
2978fa