LTC2974
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LTC2974

4-Channel PMBus Power System Manager Featuring Accurate Output Current Measurement

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Linduino LTC2974 - DC1978 Linduino.INO File Download 13.00KB Linduino LTC2974 - Linduino CPP File Download 0.00KB Linduino LTC2974 - Linduino Header File Download 4.00KB
Part Models 6
1ku List Price Starting From $10.49
Features
  • Sequence, Trim, Margin and Supervise Four Power Supplies
  • Manage Faults, Monitor Telemetry and Create Fault Logs
  • PMBus™ Compliant Command Set
  • Supported by LTpowerPlay® GUI
  • Margin or Trim Supplies to within 0.25% of Target
  • Fast OV/UV Supervisors Per Channel
  • Fast Output Current Supervisors Per Channel
  • Coordinate Sequencing and Fault Management Across Multiple LTC PSM Devices
  • Automatic Fault Logging to Internal EEPROM
  • Operate Autonomously without Additional Software
  • External Temperature and Input Voltage Supervisors
  • Accurate Monitoring of Four Output Voltages, Four Output Currents, Four External Temperatures, Input Voltage and Internal Die Temperature
  • I2C/SMBus Serial Interface
  • Can Be Powered from 3.3V, or 4.5V to 15V
  • Available in 64-Lead 9mm × 9mm QFN Package
  • AEC-Q100 Qualified for Automotive Applications
Additional Details
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The LTC2974 is a 4-channel Power System Manager used to sequence, trim (servo), margin, supervise, manage faults, provide telemetry and create fault logs. PMBus commands support power supply sequencing, precision point-of-load voltage adjustment and margining. DACs use a proprietary soft-connect algorithm to minimize supply disturbances. Supervisory functions include over and under current, voltage and temperature threshold limits for four power supply output channels as well as over and under voltage threshold limits for a single power supply input channel. Programmable fault responses can disable the power supplies with optional retry after a fault is detected. Faults that disable a power supply can automatically trigger black box EEPROM storage of fault status and associated telemetry. An internal 16-bit ADC monitors four output voltages, four output currents, four external temperatures, one input voltage and die temperature. Output power is also calculated. A programmable watchdog timer monitors microprocessor activity for a stalled condition and resets the microprocessor if necessary. A single wire bus synchronizes power supplies across multiple LTC Power System Management (PSM) devices. Configuration EEPROM with ECC supports autonomous operation without additional software.

APPLICATIONS

  • Computers and Network Servers
  • Industrial Test and Measurement
  • High Reliability Systems
  • Medical Imaging
  • Video
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file View Data Sheet (Rev.F)
Documentation View All Documentation
Linduino LTC2974 - DC1978 Linduino.INO File Download 13.00KB Linduino LTC2974 - Linduino CPP File Download 0.00KB Linduino LTC2974 - Linduino Header File Download 4.00KB
Part Models 6
1ku List Price Starting From $10.49
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LTC2974

Documentation

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Data Sheet

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UPDATED 10/01/2013
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LTC2974: 4-Channel PMBus Power System Manager Featuring Accurate Output Current Measurement Data Sheet (Rev.F)

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1.93 M
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UPDATED 12/05/2013
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LTC2974: 正確な出力電流測定を特長とする4チャネルPMBusパワーシステム・マネージャ データシート

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Informational

2

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UPDATED 02/12/2018
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Power Systems Management redirect icon

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UPDATED 02/12/2018
Japanese
パワー・システム・マネージメント(PSM) redirect icon

Application Note

11

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UPDATED 12/05/2016
English
AN-153: Linduino for Power System Management redirect icon

1.00M

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UPDATED 06/01/2016
Chinese
AN153 - 用于电源系统管理的 Linduino redirect icon

1.00M

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UPDATED 10/02/2016
Japanese
AN153 - パワーシステム・マネージメント用Linduino redirect icon

1.00M

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UPDATED 04/10/2017
English
AN-166: In Flight Update with Linduino redirect icon

1.00M

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UPDATED 01/26/2017
English
AN-155: Fault Log Decoding with Linduino PSM redirect icon

224.00K

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UPDATED 01/26/2017
Japanese
AN155 - Linduino PSMを使用したフォルト・ログのデコード redirect icon

224.00K

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UPDATED 07/12/2016
English
AN-152: Power System Management Addressing (Rev.A) redirect icon

164.00K

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UPDATED 07/12/2016
Japanese
AN-152: Power System Management Addressing redirect icon

164.00K

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UPDATED 07/20/2015
English
AN-145: Overview of the EEPROM in LTC PSM Devices redirect icon

2.00M

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UPDATED 07/20/2015
Japanese
AN145 - LTC PSMデバイスのEEPROMの概要 redirect icon

2.00M

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UPDATED 09/20/2012
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AN-137: Accurate Temperature Sensing with an External P-N Junction redirect icon

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Product Information

1

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UPDATED 08/22/2016
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Design Checklist for LTC297X Family of PSM Managers redirect icon

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User Guide

3

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UPDATED 05/09/2012
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DC1978A - Demo Manual redirect icon

2.00M

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UPDATED 06/24/2014
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DC1508B - Demo Manual redirect icon

792.00K

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UPDATED 06/27/2013
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DC1962C - Demo Manual redirect icon

4.00M

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Reliability Data

1

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UPDATED 03/26/2018
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R544 Reliability Data redirect icon

151.77 K

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Technical Articles

7

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UPDATED 04/01/2012
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Digital Power Management Reduces Energy Costs While Improving System Performance redirect icon

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UPDATED 04/01/2015
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I2C Programmable Multichannel Voltage Supervisors with EEPROM redirect icon

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UPDATED 07/28/2014
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LTC Power System Management Tips for Success redirect icon

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UPDATED 08/21/2012
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Digital Power Supervision and Telemetry redirect icon

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UPDATED 03/12/2015
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Linduino PSM redirect icon

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UPDATED 01/23/2018
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Fault Management Architecture redirect icon

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UPDATED 09/01/2012
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Digital Point of Load Converters vs. Digital Managers redirect icon

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Documentation

Technical Documents 20
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Data Sheet 1

LTC2974: 4-Channel PMBus Power System Manager Featuring Accurate Output Current Measurement Data Sheet (Rev.F)

Reliability Data 1

R544 Reliability Data

User Guide 3

DC1978A - Demo Manual
DC1508B - Demo Manual
DC1962C - Demo Manual

Application Note 6

AN-153: Linduino for Power System Management
AN-166: In Flight Update with Linduino
AN-155: Fault Log Decoding with Linduino PSM
AN-152: Power System Management Addressing (Rev.A)
AN-145: Overview of the EEPROM in LTC PSM Devices
AN-137: Accurate Temperature Sensing with an External P-N Junction

Technical Articles 7

Digital Power Management Reduces Energy Costs While Improving System Performance
I2C Programmable Multichannel Voltage Supervisors with EEPROM
LTC Power System Management Tips for Success
Digital Power Supervision and Telemetry
Linduino PSM
Fault Management Architecture
Digital Point of Load Converters vs. Digital Managers

Informational 1

Power Systems Management

Product Information 1

Design Checklist for LTC297X Family of PSM Managers

Device Drivers 1

LTC297x GitHub Linux Driver Source Code

Product Selector Card 4

Quad Power System Manager
Digital Power System Management
Power and Thermal Monitoring
Power System Manager and Super Sequencer Selection Guide

Analog Dialogue 2

Current Sensing with PMBus Digital Power System Managers—Part 1
Current Sensing with PMBus Digital Power System Managers—Part 2

Webcast 2

Digital Power System Management for Embedded Systems
Designing Power Solutions for FPGA Applications

Video

4

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Video

2018-05-30

04:40

Dynamically adjust Xilinx FPGA Transceiver power supply 1V±0.25%

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Video

2017-09-18

A Guide to Ordering Custom Programmed Digital Power System Management Devices

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Video

2017-09-18

LTC2974 Video Product Brief

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Video

2017-09-18

LTC2974 Demonstration Video

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ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
LTC2974CUP#PBF 64-Lead QFN (9mm x 9mm x 0.75mm w/ EP) external-link
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LTC2974CUP#TRPBF 64-Lead QFN (9mm x 9mm x 0.75mm w/ EP) external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
LTC2974IUP#PBF 64-Lead QFN (9mm x 9mm x 0.75mm w/ EP) external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
LTC2974IUP#TRPBF 64-Lead QFN (9mm x 9mm x 0.75mm w/ EP) external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
LTC2974IUP#WPBF 64-Lead QFN (9mm x 9mm x 0.75mm w/ EP) external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
LTC2974IUP#WTRPBF 64-Lead QFN (9mm x 9mm x 0.75mm w/ EP) external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link

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May 22, 2019

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Notification of Change to LTC2974

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Datasheet Specification Comparison

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Software & Part Ecosystem

Parts Product Life Cycle Description

Digital Power System Managers2
LTC2975
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8-Channel PMBus Power System Manager Featuring Accurate Output Voltage Measurement

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PRODUCTION

Programmable Hex Voltage Supervisor with EEPROM

Evaluation Kits 4

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DC1962C

Power System Management Demo Board (PowerStick) | 14-Supply Management with LTC2977, LTC2974 and LTC3880 [Requires DC1613]

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DC1962C

Power System Management Demo Board (PowerStick) | 14-Supply Management with LTC2977, LTC2974 and LTC3880 [Requires DC1613]

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DC1962C
Power System Management Demo Board (PowerStick) | 14-Supply Management with LTC2977, LTC2974 and LTC3880 [Requires DC1613]
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Product Detail

DC1962C Demo Board for:
LTC2974 4-Channel PMBus Power System Manager Featuring Accurate Output Current Measurement
LTC3880 Dual Output PolyPhase Step-Down DC/DC Controller with Digital Power System Management
LTC2977 8-Channel PMBus Power System Manager Featuring Accurate Output Voltage Measurement

Resources

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PDF

DC1962C - Schematic Download

622.00K

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PDF

DC1962C - Demo Manual Download

4.00M

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DC1962C - Design Files Download

10.00M

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DC1978A

LTC2974 Demo Board Kit (Includes DC1809 + DC1810), Requires DC1613

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DC1508B-B

LTC2974, LTC2975 Socketed Programming Board (Requires DC1613)

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DC1508B-B

LTC2974, LTC2975 Socketed Programming Board (Requires DC1613)

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DC1508B-B
LTC2974, LTC2975 Socketed Programming Board (Requires DC1613)
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Product Detail

The DC1508B programming board contains the circuitry needed to program and verify the EEPROM of the LTC2974, LTC2975, LTC2977, LTC2978, and LTC2978A. This is its sole purpose. The DC1508B is shipped with a clamshell style programming socket installed. The EEPROM contains the factory default configuration. The LTpowerPlay™ *.proj file that corresponds to the factory default can be found in the GUI.

Resources

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DC1508B - Demo Manual Download

792.00K

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DC1508B - Design File Download

2.00M

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DC1508B - Schematic Download

54.00K

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DC1962C-KIT

Starter Kit for Power System Management [Includes DC1962C, DC1613A]

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DC1962C-KIT

Starter Kit for Power System Management [Includes DC1962C, DC1613A]

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DC1962C-KIT
Starter Kit for Power System Management [Includes DC1962C, DC1613A]
Buy Now View Details

Product Detail

DC1962C-KIT Demo Board for:
LTC2977 8-Channel PMBus Power System Manager Featuring Accurate Output Voltage Measurement
LTC2974 4-Channel PMBus Power System Manager Featuring Accurate Output Current Measurement
LTC3880 Dual Output PolyPhase Step-Down DC/DC Controller with Digital Power System Management


 


Resources

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PDF

DC1962C - Schematic Download

622.00K

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PDF

DC1962C - Demo Manual Download

4.00M

pdf icon

ZIP

DC1962C - Design Files Download

10.00M

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Evaluation Kits4

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DC1962C

Power System Management Demo Board (PowerStick) | 14-Supply Management with LTC2977, LTC2974 and LTC3880 [Requires DC1613]
evaluation kit item images

DC1978A

LTC2974 Demo Board Kit (Includes DC1809 + DC1810), Requires DC1613
evaluation kit item images

DC1508B-B

LTC2974, LTC2975 Socketed Programming Board (Requires DC1613)
evaluation kit item images

DC1962C-KIT

Starter Kit for Power System Management [Includes DC1962C, DC1613A]

Tools & Simulations 2

Linduino

Linduino is Analog Devices’ Arduino compatible system for developing and distributing firmware libraries and example code for our integrated circuits. Each Linduino-supported product includes an example main program, defined in the LTSketchbook/Part Number folder and driver code, defined in the LTSketchbook/libraries folder.

Linduino code repository on GitHub and instructions on how to use the code.

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Code Files

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LTC2974 - Linduino CPP File redirect

LTC2974 - Linduino Header File redirect

LTC2974 - DC1978 Linduino.INO File redirect

Reference Designs 2

Kintex Ultrascale Plug In Card - Top View

Xilinx Tested Power Solution for the Kintex UltraScale MGTs (Multi-Gigabit Transceivers)

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Xilinx Tested Power Solution for the Kintex UltraScale MGTs (Multi-Gigabit Transceivers)

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Xilinx Tested Power Solution for the Kintex UltraScale MGTs (Multi-Gigabit Transceivers)

Circuits from the lab

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Features and Benefits

  • Analog Devices has worked closely with FPGA and processor manufacturers to develop verified power solutions that optimize cost, size and efficiency in high performance applications
  • Our reference designs are supported by an intuitive design tool set and IP
  • Our team can provide designs for quick prototypes that can speed time to market in the most complex applications
View Detailed Reference Design external link

Part Used 4

LTC2974 reference design link

LT3065 Series reference design link

LTM4624 reference design link

LTM4649 reference design link

DC2352A - Top View

Xilinx Tested Power Solution for the Virtex UltraScale MGTs (Multi-Gigabit Transceivers)

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Xilinx Tested Power Solution for the Virtex UltraScale MGTs (Multi-Gigabit Transceivers)

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Xilinx Tested Power Solution for the Virtex UltraScale MGTs (Multi-Gigabit Transceivers)

Circuits from the lab

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Features and Benefits

  • Analog Devices has worked closely with FPGA and processor manufacturers to develop verified power solutions that optimize cost, size and efficiency in high performance applications
  • Our reference designs are supported by an intuitive design tool set and IP
  • Our team can provide designs for quick prototypes that can speed time to market in the most complex applications
View Detailed Reference Design external link

Part Used 3

LTC2974 reference design link

LTM4624 reference design link

LTM4630-1 reference design link

Reference Designs2

Kintex Ultrascale Plug In Card - Top View

Xilinx Tested Power Solution for the Kintex UltraScale MGTs (Multi-Gigabit Transceivers)

DC2352A - Top View

Xilinx Tested Power Solution for the Virtex UltraScale MGTs (Multi-Gigabit Transceivers)

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