Overview

Features and Benefits

  • Sequence, Trim, Margin and Supervise 24 Power Supplies
  • Manage Faults, Monitor Telemetry and Create Fault Logs
  • PMBus Compliant Command Set
  • Supported by LTpowerPlay® GUI
  • Margin or Trim Supplies to within 0.15% of Target
  • Fast OV/UV Supervisors Per Channel
  • Coordinate Sequencing and Fault Management Across Multiple ADI PSM Devices
  • Automatic Fault Logging to Internal EEPROM
  • Operate Autonomously without Additional Software
  • Internal Temperature and Input Voltage Supervisors
  • Accurate Monitoring of 24 Output Voltages, Three Input Voltages and Internal Die Temperature
  • I2C/SMBus Serial Interface
  • Can Be Powered from 3.3V, or 4.5V to 15V
  • Programmable Watchdog Timer
  • Available in 210-Lead 8.1mm × 16.9mm BGA Package

Product Details

The LTC2980-24 is a 24-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 overvoltage and undervoltage threshold limits for 24 power supply output channels and three power supply input channels, as well as over and under temperature limits. 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 24 output voltages, three input voltages, and die temperature. In addition, odd numbered channels can be configured to measure the voltage across a current sense resistor. 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
  • Medical Imaging
  • Video

Product Lifecycle icon-recommended Recommended for New Designs

This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.

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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.

PCN-PDN Information

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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.