ltc2978 Linear Technology Corporation, ltc2978 Datasheet - Page 14
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ltc2978
Manufacturer Part Number
ltc2978
Description
Octal Pmbus Power Supply Monitor And Controller With Eeprom
Manufacturer
Linear Technology Corporation
Datasheet
1.LTC2978.pdf
(64 pages)
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LTC2978
block DiagraM
SHARE_CLK
WDI/RESET
CONTROL0
CONTROL1
FAULTB00
FAULTB01
FAULTB10
FAULTB11
V
ALERTB
PWRGD
IN_SNS
ASEL0
ASEL1
V
V
V
REFM
V
REFP
DD33
DD33
DD25
GND
SDA
PWR
SCL
WP
15
16
17
18
14
65
34
35
28
27
29
32
33
19
30
31
22
23
24
25
26
20
21
INTERNAL
SENSOR
3R
TEMP
PMBus ALGORITHM
FAULT PROCESSOR
V
V
V
3.3V REGULATOR
2.5V REGULATOR
IN
IN
OUT
R
COMPATIBLE)
CONTROLLER
(400kHz I
SEQUENCER
WATCHDOG
INTERFACE
PMBus
MUX
2
V
C
OUT
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
SENSEM0
SENSEP0
SENSEM1
SENSEP1
SENSEM2
SENSEP2
SENSEM3
SENSEP3
SENSEM4
SENSEP4
SENSEM5
SENSEP5
SENSEM6
SENSEP6
SENSEM7
SENSEP7
V
DD
NONVOLATILE MEMORY
RAM
+
–
MONITOR LIMITS
SERVO TARGETS
ADC_RESULTS
15-BIT
∑ ADC
EEPROM
CLOCKS
ADC
REFERENCE
1.232V
(TYP)
V
DD
CMP0
10 BITS
IDAC0
–
+
–
+
OSCILLATOR
+
–
10-BIT
UVLO
VDAC
V
DD
+
–
VBUF0
GENERATION
CLOCK
+
–
CMP0
SC
OPEN-DRAIN
OUTPUT
OUTPUT
CONFIG
36
37
42
43
46
47
48
49
52
53
62
63
64
39
40
44
50
55
56
59
60
38
41
45
51
54
57
58
61
12
10
11
1
2
3
4
5
6
7
8
9
2978 BD
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
SENSEP0
SENSEM0
SENSEP1
SENSEM1
SENSEP2
SENSEM2
SENSEP3
SENSEM3
SENSEP4
SENSEM4
SENSEP5
SENSEM5
SENSEP6
SENSEM6
SENSEP7
SENSEM7
DACP0
DACP1
DACP2
DACP3
DACP4
DACP5
DACP6
DACP7
DACM0
DACM1
DACM2
DACM3
DACM4
DACM5
DACM6
DACM7
OUT_EN0
OUT_EN1
OUT_EN2
OUT_EN3
IN_EN
OUT_EN4
OUT_EN5
OUT_EN6
OUT_EN7
2978fa