LTC2974
Info : RECOMMENDED FOR NEW DESIGNS
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LTC2974

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

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Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
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
Part Models 6
1ku List Price Starting From $10.49

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Documentation

Documentation

Video

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
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Product Lifecycle

PCN

May 22, 2019

- 19_0118

Notification of Change to LTC2974

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PRODUCTION

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Part Models

Product Lifecycle

PCN

May 22, 2019

- 19_0118

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Notification of Change to LTC2974

LTC2974CUP#PBF

PRODUCTION

LTC2974CUP#TRPBF

PRODUCTION

LTC2974IUP#PBF

PRODUCTION

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PRODUCTION

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 4

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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)

LTC2974, LTC2975 Socketed Programming Board (Requires DC1613)

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.

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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]

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

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

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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]

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

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


 


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

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Reference Designs

Reference Designs 2

Kintex Ultrascale Plug In Card - Top View

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xilinx-tested-power-solution-for-the-kintex-ultrascale-mgts-multi-gigabit-transceivers

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
DC2352A - Top View

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xilinx-tested-power-solution-for-the-virtex-ultrascale-mgts-multi-gigabit-transceivers

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

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