Overview

Features and Benefits

  • Complete supervisory and sequencing solution for up to 10 supplies
  • 10 supply fault detectors enable supervision of supplies to:
    <0.5% accuracy at all voltages at 25°C
    <1.0 % accuracy across all voltages and temperatures
  • 5 selectable input attenuators allow supervision of:
    Supplies up to 14.4 V on VH
    Supplies up to 6 V on VP1 to VP4 (VPn)
  • 10 programmable output drivers (PDO1 to PDO10):
    Open collector with external pull-up
    Push/pull output, driven to VDDCAP or VPx
    Open collector with weak pull-up to VDDCAP or VPx
    Internally charge-pumped high drive for use with external N-FET (PDO1 to PDO6 only)
  • Sequencing engine (SE) implements state machine control of PDO outputs
    State changes conditional on input events
    Enables complex control of boards
    Power-up and power-down sequence control
    Fault event handling
    Interrupt generation on warnings
    Watchdog function can be integrated in SE
    Program software control of sequencing
    through SMBus
  • 5 dual-function inputs, VX1 to VX5 (VXn)
    High impedance input to supply fault detector with thresholds between 0.573 V and 1.375 V
    General-purpose logic input
  • Complete voltage margining solution for 6 voltage rails
  • 6 voltage output, 8-bit DACs (0.300 V to 1.551 V) allow voltage adjustment via dc-to-dc converter trim/feedback node
  • 12-bit ADC for readback of all supervised voltages
  • Internal and external temperature sensors
  • Reference input (REFIN) has 2 input options
  • Driven directly from 2.048 V (±0.25%) REFOUT pin
  • More accurate external reference for improved ADC performance
  • Device powered by the highest of VPx, VH for improved redundancy
  • User EEPROM: 256 bytes
  • Industry-standard 2-wire bus interface (SMBus)
  • Guaranteed PDO low with VH, VPx = 1.2 V
  • Available in 40-lead, 6 mm × 6 mm LFCSP and 48-lead, 7 mm × 7 mm TQFP packages

Product Details

The ADM1062 Super Sequencer® is a configurable supervisory/sequencing device that offers a single-chip solution for supply monitoring and sequencing in multiple-supply systems. In addition to these functions, the ADM1062 integrates a 12-bit ADC and six 8-bit voltage output DACs. These circuits can be used to implement a closed-loop margining system that enables supply adjustment by altering either the feedback node or the reference of a dc-to-dc converter using the DAC outputs.

For more information about the ADM1062 register map, refer to the AN-698 Application Note

APPLICATIONS

  • Central office systems
  • Servers/routers
  • Multivoltage system line cards
  • DSP/FPGA supply sequencing
  • In-circuit testing of margined supplies

Product Lifecycle icon-recommended Production

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.

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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.