Data Sheet Rev. B
User Guides
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Overview

Features and Benefits

  • Time and Event Based Sequencing
  • 12 Programmable Undervoltage (UV) and Overvoltage (OV) Comparators: ±0.75% Accuracy
  • I2C/SMBus Interface
  • Stalled Power Supply Detection
  • Single Wire Synchronization Allows Controller Expansion to 50 Devices (300 Power Supplies)
  • Configuration and Fault Logging in EEPROM
  • EEPROM Specified Over Entire Temperature Range, Rated to 125°C, 10k Writes, 20yr Retention
  • Supported by LTpowerPlay® GUI
  • Fault and System Status Registers
  • Reset Output with Programmable Delay
  • Wide Input Supply Voltage Range: 2.9V to 16.5V
  • 28-Lead QFN (5mm × 6mm) Package

Product Details

The LTC2937 is a 6-channel power supply sequencer and voltage supervisor. Supplies are enabled or disabled with precise user controlled order and time spacing. To detect power supply output faults during sequencing and monitoring, the LTC2937 accurately monitors supply turn-on/-off delays and output voltage levels. In the event of a fault, response actions include complete power supply shutdown and optional restarts. Root cause of power faults are logged to EEPROM. For systems with high supply count, a simple single wire connection between multiple LTC2937 devices allows sequencing expansion to 300 supplies. After successful sequencing and supply voltage stabilization, the reset output pulls high to initiate microprocessor or other system activity. To accommodate supply margin testing, the reset output can be disabled. Upon supply turn-off, integrated current sources are available as needed to discharge slowly decaying supplies. Configuration EEPROM supports autonomous operation without software.

Applications

  • Network Servers
  • Data Storage Systems
  • Telecom Equipment
  • High Availability Computer Systems

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Evaluation Kits (2)

Documentation & Resources

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  • Reliability Data (1)
  • Application Notes (1)
  • User Guides (2)
  • Design Notes (1)
  • Product Selector Card (4)
  • Technical Articles (2)
  • Press Releases (1)
    • Document Type

    Tools & Simulations

    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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    Linduino

    Code Files

    LTC2937 - DC2313A Linduino.INO File
    LTC2937 Linduino Header File

    Design Tools

    LTpowerPlay®

    LTpowerPlay® is a powerful, Windows-based development environment supporting Linear Technology's Digital Power System Management (PSM) products.

    Software Development Kit

    Reference Designs (1)

    Product Recommendations

    LTC2937 Companion Parts

    Recommended Related Parts

    Design Resources

    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.

    LTC2937 Material Declaration
    Quality And Reliability
    Symbols and Footprints

    Support & Discussions

    LTC2937 Discussions

    RE: LTC2937 ON Pin control circuitry
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    LTC2937 Contact ADI Technical Support » LTC2937 Ask your question »

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    Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.