LTC2975
Info : RECOMMENDED FOR NEW DESIGNS
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LTC2975

4-Channel PMBus Power System Manager Featuring Accurate Input Current and Energy Measurement

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Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 8
1ku List Price Starting From $11.48
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
  • Monitor Input Current (±1%) and Accumulate Energy
  • Fast OV/UV and OC 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 Current, and Internal Die Temperature
  • Can Be Powered from 3.3V, or 4.5V to 15V
  • Pin-Compatible to the LTC2974
  • Available in 64-Lead 9mm × 9mm QFN Package and in 63-Lead 6.25mm × 7.5mm BGA Package
  • AEC-Q100 Qualified for Automotive Applications
Additional Details
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The LTC2975 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, input voltage and current, and die temperature. Input power, energy, and 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 ADI 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
  • Video and Medical Imaging
Part Models 8
1ku List Price Starting From $11.48

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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

Apr 29, 2019

- 19_0085

Notification of Change to LTC2975

LTC2975CUP#PBF

PRODUCTION

LTC2975CUP#TRPBF

PRODUCTION

LTC2975IUP#PBF

PRODUCTION

LTC2975IUP#TRPBF

PRODUCTION

Jul 21, 2021

- 21_0159

Ink Mark to Laser Mark Conversion for µModule

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Apr 29, 2019

- 19_0085

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Notification of Change to LTC2975

LTC2975CUP#PBF

PRODUCTION

LTC2975CUP#TRPBF

PRODUCTION

LTC2975IUP#PBF

PRODUCTION

LTC2975IUP#TRPBF

PRODUCTION

Jul 21, 2021

- 21_0159

arrow down

Ink Mark to Laser Mark Conversion for µModule

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 5

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DC2518A

LTC2975 Demo Board: ±12V, ±48V Power Supply Management [requires DC1613]

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DC2518A

LTC2975 Demo Board: ±12V, ±48V Power Supply Management [requires DC1613]

LTC2975 Demo Board: ±12V, ±48V Power Supply Management [requires DC1613]

Product Detail

The DC2518A is a demonstration system for the LTC2975 Power System Manager that interfaces to various regulators. The board contains all the circuitry needed to use the LTC2975 in a power system and control four power supplies. The four power supplies include linear and switching regulators for the purpose of demonstrating a variety of methods to sense voltage and current. The demo board provides a sophisticated, digitally programmable 4-channel power supply system.

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DC2578A

Total Power Management: Hot Swap, Intermediate Bus Voltage, Point-of-Load (Featuring LTC4281, LTC3886, LTC3887, LTC2975) [Requires DC1613]

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DC2578A

Total Power Management: Hot Swap, Intermediate Bus Voltage, Point-of-Load (Featuring LTC4281, LTC3886, LTC3887, LTC2975) [Requires DC1613]

Total Power Management: Hot Swap, Intermediate Bus Voltage, Point-of-Load (Featuring LTC4281, LTC3886, LTC3887, LTC2975) [Requires DC1613]

Product Detail

The DC2578A is a complete power chain, including a hot swap controller, an intermediate bus controller, and six point-of-load channels with power system management. The board demonstrates how to safely transfer power from a backplane, through an LTC4281 hot swap controller, through an LTC3886 step-down intermediate bus controller (IBC), and out through the point-of-load converters (POLs) that regulate load voltages. It shows the comprehensive set of power management, cooperation, and safety features of the Analog Devices solution, and showcases how easy it is to configure and manage the whole power hierarchy. Each regulated supply has the ability to sequence, trim, margin, supervise, measure, respond cooperatively to faults, and log fault information in nonvolatile memory. In addition, the onboard load pulser helps with optimizing the adjustable LTC3886 control loop response. The rich set of status and telemetry information provided by the entire system is consolidated and presented under one GUI interface — LTpowerPlay.

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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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DC2022A

LTC2975 Demo Board: 4 Power Supply Manager with Input Energy Monitoring [Requires DC1613]

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DC2022A

LTC2975 Demo Board: 4 Power Supply Manager with Input Energy Monitoring [Requires DC1613]

LTC2975 Demo Board: 4 Power Supply Manager with Input Energy Monitoring [Requires DC1613]

Product Detail

The DC2022A is a demonstration system that showcases the LTC2975, a 4-channel I2C/SMBus/PMBus power system manager with EEPROM. The LTC2975 monitors and controls four power supply rails. The LTC2975 also monitors input current and input voltage, which are used to calculate input power and accumulate energy. The DC2022A demonstrates the ability of the LTC2975 to sequence, trim, margin, supervise, monitor, and log faults for four power supplies. Each power supply channel’s output voltage is monitored and the LTC2975 monitors its own internal die temperature.

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DC2428A

LTC2975 Demo Board Set | LTM4644-1 Quad 4A Power Supply Management (includes DC2382A + DC2363A) [requires DC1613]

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DC2428A

LTC2975 Demo Board Set | LTM4644-1 Quad 4A Power Supply Management (includes DC2382A + DC2363A) [requires DC1613]

LTC2975 Demo Board Set | LTM4644-1 Quad 4A Power Supply Management (includes DC2382A + DC2363A) [requires DC1613]

Product Detail

The DC2428A is a two-board demonstration system for the LTC2975 Power System Manager and LTM4644-1 quad 4A μModule regulator. The DC2382A contains all the circuitry needed to use the LTC2975 in a power system and control four power supplies. The DC2363A contains four power supplies (LTM4644-1) that the LTC2975 configures and controls. The DC2363A and DC2382A demo boards together provide a sophisticated 4-channel digitally programmable power supply system.

Tools & Simulations

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.

Purchase Linduino

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