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ADM1184:  0.8% Accurate Quad Voltage Monitor

Product Details


The ADM1184 is an integrated, 4-channel voltage-monitoring device. A 2.7 V to 5.5 V power supply is required on the VCC pin to power the device.

Four precision comparators monitor four voltage rails. Each comparator has a 0.6 V reference with a worst-case accuracy of 0.8%. Resistor networks that are external to the VIN1, VIN2, VIN3, and VIN4 pins set the trip points for the monitored supply rails.

The ADM1184 has four open-drain outputs. Of these outputs, OUT1 to OUT3 can be used to enable power supplies, and PWRGD is a common power-good output indicating that all monitored supplies are above their respective thresholds.

OUT1 to OUT3 are dependent on their associated VINx input (that is, VIN1, VIN2, or VIN3). If a supply monitored by VINx drops below its programmed threshold, the associated OUTx pin and PWRGD are disabled.

PWRGD is a common power-good output indicating the status of all monitored supplies. There is an internal 190 ms (typical) delay associated with the assertion of the PWRGD output. If VIN1, VIN2, VIN3, or VIN4 drops below its programmed threshold, PWRGD is deasserted immediately.

The ADM1184 is available in a 10-lead mini small outline package (MSOP).

Applications

  • Monitor and alarm functions
  • Telecommunications
  • Microprocessor systems
  • PC/servers
  • Data Sheet, Rev. 0, 3/08

    FEATURES and BENEFITS

    • Powered from 2.7 V to 5.5 V on the VCC pin
    • 4 inputs can be programmed to monitor different voltage levels with external resistor dividers
    • 3 open-drain enable outputs (OUT1, OUT2, and OUT3)
    • Monitors 4 supplies via 0.8% accurate comparators
    • Open-drain power-good output (PWRGD)
    • Internal 190 ms delay associated with assertion of PWRGD
    • 10-lead MSOP

    Typical Application Circuit

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    Price, packaging, availability

    ADM1184 Model Options
    Model Package Pins Temp.
    Range
    Packing,
    Qty
    Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
    Purchase/Sample
    ADM1184ARMZ Status: Production 10 ld MSOP 10 Ind Tube, 50 $1.85 $1.79 Y  Material Info Notify Me Purchase Sample
    ADM1184ARMZ-REEL7 Status: Production 10 ld MSOP 10 Ind Reel, 1000 - $1.79 Y  Material Info Notify Me Purchase
    Price Table Help

    The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

    ADM1184 Evaluation Board
    Model Description Price RoHS View PCN/ PDN Check Inventory/
    Purchase/Sample
    EVAL-ADM1184EBZ Status: Production Evaluation Board $100.00 Yes -

    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.

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