Data Sheet
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Alternative Parts

LTC2936
LTC2936

Programmable Hex Voltage Supervisor with EEPROM and Comparator Outputs

LTC2939
LTC2939

Configurable 6-Supply Monitors with Watchdog Timer

Overview

Features and Benefits

  • Supervises 6 Power Supplies
  • I2C Adjustable UV and OV Trip Points
  • Guaranteed Threshold Accuracy: ±1%
  • I2C/SMBus Interface
  • Internal EEPROM
  • 256 Programmable Thresholds per Channel
  • Up to Three Range Settings per Channel
  • Two General Purpose Inputs
  • Three General Purpose Inputs/Outputs
  • Programmable Output Delays
  • Supply Voltage Range, 3.4V to 13.9V
  • Supply Voltage Power Sharing from V1 to V4
  • 16-Lead 5mm × 4mm DFN and SSOP Packages

Product Details

The LTC2933 is an EEPROM configurable voltage supervisor which can simultaneously monitor up to six power supply voltage inputs. Each voltage detector offers I2C programmable over/undervoltage thresholds in various ranges and increments.

Two general purpose inputs (GPI) can be configured as programmable manual reset (MR), UV disable (UVDIS), margin (MARG) or auxiliary comparator (AUXC) inputs. Three general purpose pins (GPIO) can be configured for input or output operation. When configured as an input, a GPIO pin can be mapped to any other GPIO configured as output. The GPIO pins can also be configured as ALERT or fault outputs. Faults can be configured with programmable delay-on-release times. Output type and polarity are also configurable.

Status and history registers log faults and can be polled via the I2C interface. A fault log snapshot is also backed up in internal EEPROM. All parameters are programmable via the I2C interface. Configuration EEPROM supports autonomous operation without additional software.

Applications

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

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At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Evaluation Kits (3)

Documentation & Resources

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  • Data Sheets (1)
  • Reliability Data (1)
  • User Guides (2)
  • Product Selector Card (4)
  • Videos (1)
  • Press Releases (1)
  • Technical Articles (2)
    • Document Type

    Tools & Simulations

    Linduino

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

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    Linduino

    Code Files

    LTC2933 - DC1633B.INO
    LTC2933 Linduino Header File

    Design Tools

    LTpowerPlay®

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

    Product Recommendations

    LTC2933 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.

    LTC2933 Material Declaration
    Quality And Reliability
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    PCN-PDN Information

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    • LTC2933CGN#PBF Production
    • LTC2933CGN#TRPBF Production
    • LTC2933IGN#PBF Production
    • LTC2933IGN#TRPBF Production

    Support & Discussions

    LTC2933 Discussions

    RE: LTC2933 EEPROM retention
    17 week(s) ago in Power Management
    All LTC2933 Discussions
    LTC2933 Contact ADI Technical Support »
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    LTC2933 Contact ADI Technical Support » LTC2933 Ask your question »

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