MAX16043

Dual-/Triple-/Quad-Voltage, Capacitor-Adjustable, Sequencing/Supervisory Circuits

Versatile Sequencing and Monitoring Circuits that Can Be Used Across Multiple Design Platforms


Please check latest availability status for a specific part variant.

Description

The MAX16041/MAX16042/MAX16043 are dual-/triple-/quad-voltage monitors and sequencers that are offered in a small thin QFN package. These devices offer enormous design flexibility as they allow fixed and adjustable thresholds to be selected through logic inputs and provide sequence timing through small external capacitors. These versatile devices are ideal for use in a wide variety of multivoltage applications.

As the voltage at each monitored input exceeds its respective threshold, its corresponding output goes high after a propagation delay or a capacitor-set time delay. When a voltage falls below its threshold, its respective output goes low after a propagation delay. Each detector circuit also includes its own enable input, allowing the power-good outputs to be shut off independently. The independent output for each detector has an open-drain configuration capable of supporting voltages up to 28V, thereby allowing them to interface to shutdown and enable inputs of various DC-DC regulators. Each detector can operate independently as four separate supervisory circuits or can be daisy-chained to provide controlled power-supply sequencing.

The MAX16041/MAX16042/MAX16043 also include a push-pull reset function that deasserts only after all of the independently monitored voltages exceed their threshold. The reset timeout is internally fixed or can be adjusted externally. These devices are offered in a 4mm x 4mm TQFN package and are fully specified from -40°C to +125°C.

MAX16041, MAX16042, MAX16043: Simplified Functional Diagram MAX16041, MAX16042, MAX16043: Simplified Functional Diagram Enlarge+

Key Features

  • 2.2V to 28V Operating Voltage Range
  • Fixed Thresholds for 3.3V, 2.5V, 1.8V, 1.5V, and 1.2V Systems
  • 1.5% Accurate Adjustable Threshold Monitors Voltages Down to 0.5V
  • 2.7% Accurate Fixed Thresholds Over Temperature
  • Fixed (140ms min)/Capacitor-Adjustable Delay Timing
  • Independent Open-Drain Outputs/Push-Pull RESET Output
  • Enable Inputs for Each Monitored Voltage
  • 9 Logic-Selectable Threshold Options
  • Manual Reset and Tolerance Select (5%/10%) Inputs
  • Small, 4mm x 4mm TQFN Package
  • Fully Specified from -40°C to +125°C
  • Applications/Uses

    • DC-DC Supplies
    • Multivoltage Systems
    • Networking/Telecommunication Equipment
    • Servers/Workstations
    • Storage Systems
    Part NumberOptionInterfaceInput Chan.VIN
    (V)
    Oper. Temp.
    (°C)
    Package/PinsBudgetary
    Price
    maxSee Notes
    MAX16041 Sequence
    Factory Fixed
    R/C Adjustable
    2
    <6
    >6
    -40 to +125
    TQFN/16
    $1.41 @1k
    MAX16042 3
    TQFN/20
    $2.05 @1k
    MAX16043 4
    TQFN/24
    $2.47 @1k
    See All Power-Supply Sequencers and Voltage Trackers (44)

    Part NumberReset Thresh.
    (V)
    Reset OuttRESETWatchdog FeatureSupervisor FeaturesReset Thresh. Accur.
    (%)
    ICC
    (µA)
    Package/Pins
    min@ +25°Cmax
    MAX16041 
    0 to 1.2
    1.2 to 1.8
    1.8 to 2.5
    2.5 to 3.3
    3.3 to 5.5
    >=5.5
    Active Low
    Push-Pull
    1ms to 15ms
    15ms to 85ms
    85ms to 300ms
    300ms to 1s
    <1ms
    >1s
    Adjustable
    No Watchdog
    Adjustable Reset Input
    High Voltage (>6V)
    Manual Reset
    Power Fail Comparator/Low Battery Detect
    1.575
    See Data Sheet
    See All Supervisors (2 Monitored Voltages) (73)

    Part NumberReset Thresh.
    (V)
    Reset OuttRESETWatchdog FeatureSupervisor FeaturesReset Thresh. Accur.
    (%)
    ICC
    (µA)
    Package/Pins
    min@ +25°Cmax
    MAX16042 
    0 to 1.2
    1.2 to 1.8
    1.8 to 2.5
    2.5 to 3.3
    3.3 to 5.5
    >=5.5
    Active Low
    Push-Pull
    1ms to 15ms
    15ms to 85ms
    85ms to 300ms
    300ms to 1s
    <1ms
    >1s
    Adjustable
    No Watchdog
    Adjustable Reset Input
    High Voltage (>6V)
    Manual Reset
    Power Fail Comparator/Low Battery Detect
    1.575
    See Data Sheet
    See All Supervisors (3 Monitored Voltages) (29)

    Part NumberReset Thresh.
    (V)
    Reset OuttRESETWatchdog FeatureSupervisor FeaturesReset Thresh. Accur.
    (%)
    ICC
    (µA)
    Package/Pins
    min@ +25°Cmax
    MAX16043 
    0 to 1.2
    1.2 to 1.8
    1.8 to 2.5
    2.5 to 3.3
    3.3 to 5.5
    >=5.5
    Active Low
    Push-Pull
    1ms to 15ms
    15ms to 85ms
    85ms to 300ms
    300ms to 1s
    <1ms
    >1s
    Adjustable
    No Watchdog
    Adjustable Reset Input
    High Voltage (>6V)
    Manual Reset
    Power Fail Comparator/Low Battery Detect
    1.575
    See Data Sheet
    See All Supervisors (4 Monitored Voltages) (22)
    Pricing Notes:
    This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

    Quality and Environmental Data

    Product Reliability Reports: MAX16043.pdf 
    Lead-Free Package Tin (Sn) Whisker Reports

    CAD Symbols and Footprints

  • MAX16043TG+
  • MAX16043TG+T
  • Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

    Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

    Quality Management System >
    Environmental Management System >

     
    Status:
    Package:
    Temperature:

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