ltc2978 Linear Technology Corporation, ltc2978 Datasheet - Page 13

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

FAULTB00
FAULTB01
FAULTB10
FAULTB11
SDA
SCL
ALERTB
CONTROL0
CONTROL1
ASEL0
ASEL1
REFP
REFM
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
GND
*Any unused V
pin FuncTions
SENSEP0
SENSEM0
DACM0
DACP0
DACP1
DACM1
SENSEP1
SENSEM1
DACP2
DACM2
SENSEP2
SENSEM2
SENSEP3
SENSEM3
DACP3
DACM3
SENSEP4
SENSEM4
DACM4
DACP4
DACP5
DACM5
DACM6
DACP6
DACP7
DACM7
SENSEP5
SENSEM5
SENSEP6
SENSEPn
36*
37*
42*
43*
46*
47*
48*
49*
52*
53*
62*
63*
64*
23
24
25
26
27
28
29
30
31
32
33
34
35
38
39
40
41
44
45
50
51
54
55
56
57
58
59
60
61
65
or V
SENSEMn
pins must be tied to GND.
Ground
In/Out
In/Out
In/Out
In/Out
In/Out
Out
Out
Out
Out
Out
Out
Out
Out
Out
Out
Out
Out
Out
Out
Out
Out
Out
Out
Out
In
In
In
In
In
In
In
In
In
In
In
In
In
In
In
In
In
In
Open-Drain Output and Digital Input. Active Low Bidirectional Fault Indicator-00. Connect a 10k Pull-Up
Resistor to V
Open-Drain Output and Digital Input. Active Low Bidirectional Fault Indicator-01. Connect a 10k Pull-Up
Resistor to V
Open-Drain Output and Digital Input. Active Low Bidirectional Fault Indicator-10. Connect a 10k Pull-Up
Resistor to V
Open-Drain Output and Digital Input. Active Low Bidirectional Fault Indicator-11. Connect a 10k Pull-Up
Resistor to V
PMBus Bidirectional Serial Data Pin
PMBus Serial Clock Input Pin (400kHz Maximum)
Open-Drain Output. Generates an Interrupt Request in a Fault/Warning Situation
Control Pin 0 Input
Control Pin 1 Input
Ternary Address Select Pin 0 Input. Connect to V
Ternary Address Select Pin 1 Input. Connect to V
Reference Voltage Output. Needs 0.1µF Decoupling Capacitor to REFM
Reference Return Pin. Needs 0.1µF Decoupling Capacitor to REFP .
DC/DC Converter Differential (+) Output Voltage-0 Sensing Pin
DC/DC Converter Differential (–) Output Voltage-0 Sensing Pin
Voltage Buffered IDAC0 Return. Connect to Channel 0 DC/DC Converter’s GND Sense or Return to GND
Voltage Buffered IDAC0 Output
Voltage Buffered IDAC1 Output
Voltage Buffered IDAC1 Return. Connect to Channel 1 DC/DC Converter’s GND Sense or Return to GND
DC/DC Converter Differential (+) Output Voltage or Current-1 Sensing Pins
DC/DC Converter Differential (–) Output Voltage or Current-1 Sensing Pins
Voltage Buffered IDAC2 Output
Voltage Buffered IDAC2 Return. Connect to Channel 2 DC/DC Converter’s GND Sense or Return to GND
DC/DC Converter Differential (+) Output Voltage-2 Sensing Pin
DC/DC Converter Differential (–) Output Voltage-2 Sensing Pin
DC/DC Converter Differential (+) Output Voltage or Current-3 Sensing Pins
DC/DC Converter Differential (–) Output Voltage or Current-3 Sensing Pins
Voltage Buffered IDAC3 Output
Voltage Buffered IDAC3 Return. Connect to Channel 3 DC/DC Converter’s GND Sense or Return to GND
DC/DC Converter Differential (+) Output Voltage-4 Sensing Pin
DC/DC Converter Differential (–) Output Voltage-4 Sensing Pin
Voltage Buffered IDAC4 Return. Connect to Channel 4 DC/DC Converter’s GND Sense or Return to GND
Voltage Buffered IDAC4 Output
Voltage Buffered IDAC5 Output
Voltage Buffered IDAC5 Return. Connect to Channel 5 DC/DC Converter’s GND Sense or Return to GND
Voltage Buffered IDAC6 Return. Connect to Channel 6 DC/DC Converter’s GND Sense or Return to GND
Voltage Buffered IDAC6 Output
Voltage Buffered IDAC7 Output
Voltage Buffered IDAC7 Return. Connect to Channel 7 DC/DC Converter’s GND Sense or Return to GND
DC/DC Converter Differential (+) Output Voltage or Current-5 Sensing Pins
DC/DC Converter Differential (–) Output Voltage or Current-5 Sensing Pins
DC/DC Converter Differential (+) Output Voltage-6 Sensing Pin
Exposed Pad, Must be Soldered to PCB
DD33
DD33
DD33
DD33
DD33
DD33
, GND or Float to Encode 1 of 3 Logic States
, GND or Float to Encode 1 of 3 Logic States
LTC2978

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