LTC2978C View Datasheet(PDF) - Linear Technology

Part Name

Description

MFG CO.

LTC2978C

Octal PMBus Power Supply Monitor and Controller with EEPROM

Linear Technology 

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LTC2978

Block Diagram

VPWR 15

VDD33 16

VDD33 17

VDD25 18

3R

VIN_SNS 14

3.3V REGULATOR

VIN

VOUT

2.5V REGULATOR

VIN

VOUT

R

GND 65

INTERNAL

TEMP

MUX

SENSOR

VDD

VSENSEM0

VSENSEP0

VSENSEM1

VSENSEP1

VSENSEM2

VSENSEP2

VSENSEM3

VSENSEP3

VSENSEM4

VSENSEP4

VSENSEM5

VSENSEP5

VSENSEM6

VSENSEP6

VSENSEM7

VSENSEP7

+ 16-BIT

– ∆∑ ADC

REFP 34

REFM 35

ADC

CLOCKS

VDD

REFERENCE

1.232V

(TYP)

CMP0

+ 10-BIT

– VDAC

DAC0

10 BITS

+

VBUF0

–

+SC

–CMP0

SCL 28

SDA 27

ALERTB 29

ASEL0 32

ASEL1 33

WP 19

CONTROL0 30

CONTROL1 31

WDI/RESETB 22

FAULTB00 23

FAULTB01 24

FAULTB10 25

FAULTB11 26

PWRGD 20

SHARE_CLK 21

PMBus

INTERFACE

(400kHz I2C

COMPATIBLE)

CONTROLLER

PMBus ALGORITHM

FAULT PROCESSOR

WATCHDOG

SEQUENCER

NONVOLATILE MEMORY

EEPROM

RAM

ADC_RESULTS

MONITOR LIMITS

SERVO TARGETS

OSCILLATOR

VDD

UVLO

CLOCK

GENERATION

OUTPUT

CONFIG

OPEN-DRAIN

OUTPUT

16

For more information www.linear.com/LTC2978

36 VSENSEP0

37 VSENSEM0

42 VSENSEP1

43 VSENSEM1

46 VSENSEP2

47 VSENSEM2

48 VSENSEP3

49 VSENSEM3

52 VSENSEP4

53 VSENSEM4

62 VSENSEP5

63 VSENSEM5

64 VSENSEP6

1 VSENSEM6

2 VSENSEP7

3 VSENSEM7

39 VDACP0

40 VDACP1

44 VDACP2

50 VDACP3

55 VDACP4

56 VDACP5

59 VDACP6

60 VDACP7

38 VDACM0

41 VDACM1

45 VDACM2

51 VDACM3

54 VDACM4

57 VDACM5

58 VDACM6

61 VDACM7

4 VOUT_EN0

5 VOUT_EN1

6 VOUT_EN2

7 VOUT_EN3

12 VIN_EN

8 VOUT_EN4

9 VOUT_EN5

10 VOUT_EN6

11 VOUT_EN7

2978 BD

2978fd

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