AD5100:  System-Management IC with Programmable Quad Voltage Monitoring and Supervisory Functions

The AD5100 is a programmable system-management IC that combines four channels of voltage monitoring and a watchdog supervision that can be used to shut down external supplies, reset processors, or ...More

AD5100:  System-Management IC with Programmable Quad Voltage Monitoring and Supervisory Functions

Product Description

The AD5100 is a programmable system-management IC that combines four channels of voltage monitoring and a watchdog supervision that can be used to shut down external supplies, reset processors, or disable any other system electronics when the system malfunctions. The AD5100 can also be used to protect systems from the faulty condition of improper device power-up sequencing. The AD5100, a robust watchdog reset controller, can monitor two 30 V inputs with shutdown and reset controls, one 2.3 V to 5.0 V input and one 1.6 V to 7.96V. input. Most monitoring input thresholds and timing settings can be programmed on the fly or permanently set in the factory with the OTP feature.

The AD5100 is versatile for system-monitoring applications where critical microprocessor, DSP, and embedded systems operate under harsh conditions such as automotive, industrial or communications network environments.

The AD5100 is available in a compact QSOP-16 package and can operate in an extended automotive temperature range from −40°C to +125°C.

Applications

  • Automotive systems
  • Network equipment
  • Computers, controllers, and embedded systems

    • Data Sheet, Rev. 0, 10/08

    Features

    • 2 device-enabling outputs with 6 programmable monitoring
      Inputs (See Table 1 on data sheet)
    • Two 30 V monitoring inputs with shutdown control of external devices
      Programmable overvoltage, undervoltage, turn-on and turn-off thresholds, and shutdown timings
      Shutdown warning with fault detection
      Reset control of external devices
    • 5 V and 7.96 V monitoring inputs with reset control of external devices
      Programmable reset thresholds and hold time
    • eMOST-compatible inputs
      Diagnostic application using V2MON and V4MON
    • Two supervisory functions
      Watchdog reset controller with programmable timeout and selectable floating input
      Manual reset control for external devices
    • Digital interface and programmability
      I2C-compatible interface
      OTP for permanent threshold and timing settings
      OTP can be overwritten for dynamic adjustments
      Power-up by edge triggered signal
      Power-down over I2C bus
    • Additional Features found on the data sheet

    Diagrams

    AD5100 Diagram
    Functional Block Diagram for AD5100

    Характеристики

    Batt-Backup-Flg No
    Manual Reset Capability Yes
    Reset Threshold Summary Programmable
    Reset Output-Stage Active-Low/Push-Pull
    Min Reset Timeout (ms) Adj
    Typ Watchdog Timeout (ms) adj.
    Watchdog Timer Yes
    Package SOP
    Power Fail Indicator Yes

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    AD5100 - System-Management IC with Programmable Quad Voltage Monitoring and Supervisory Functions

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    Part# Reset Threshold Summary Min Reset Timeout (ms) Reset Output-Stage Manual Reset Capability Typ Watchdog Timeout (ms) Power Fail Indicator Package Product Description Price* (1000-4999)
    AD5100 Programmable Adj Active-Low/Push-Pull Yes adj. Yes SOP System-Mgmt IC with Programmable Quad Voltage Monitoring and Supervisory Functions $1.60
    ADM1232 4.37V & 4.62V 250 Active-High/Push-Pull, Active-Low/Open-Drain Yes 250, 500, 62.5 No DIP, SOIC, SOP Microprocessor Supervisory Circuit $0.95
    ADM13305 5 Options--0.6Adj to 4.55 140 Active-High/Push-Pull, Active-Low/Push-Pull Yes 1.6 - SOIC Dual Processor Supervisor with Watchdog $0.96
    ADM6316 26 Options--2.5 to 5V 1, 1,200, 140, 20 Active-Low/Push-Pull Yes 102, 1,600, 25,600, 6.3 No SOT Supervisory Ckt w/ Watchdog, Manual Reset & Active-Low, Push-Pull Reset Output in 5-Lead SOT-23 $0.51
    ADM6318 26 Options--2.5 to 5V 1, 1,200, 140, 20 Active-High/Push-Pull, Active-Low/Push-Pull No 102, 1,600, 25,600, 6.3 No SOT Supervisory Circuit with Watchdog and Dual Active-Low/Active-High Push-Pull Reset Outputs $0.50
    ADM6320 26 Options--2.5 to 5V 1, 1,200, 140, 20 Active-Low/Open-Drain Yes 102, 1,600, 25,600, 6.3 No SOT Supervisory Circuit with Watchdog, Manual Reset & Active-Low, Open-Drain Reset Output $0.51
    ADM6321 26 Options--2.5 to 5V 1, 1,200, 140, 20 Active-High/Push-Pull, Active-Low/Open-Drain No 102, 1,600, 25,600, 6.3 No SOT Supervisory Circuit with Watchdog and Dual Active-Low Open-Drain/Active-High Push-Pull Reset Outputs $0.51
    ADM6821 9 Options--1.58 to 4.63V 140 Active-High/Push-Pull Yes 1,600 No SOT Low Voltage Supervisory Circuit w/ Watchdog, Manual Reset and Active-High, Push-Pull Reset Output -
    ADM6822 9 Options--1.58 to 4.63V 140 Active-Low/Open-Drain Yes 1,600 No SOT Low Voltage Supervisory Circuit w/ Watchdog, Manual Reset and Open-Drain Reset Output -
    ADM6823 9 Options--1.58 to 4.63V 140 Active-Low/Push-Pull Yes 1,600 No SOT Low Voltage Supervisory Circuit w/ Watchdog, Manual Reset and Active-Low, Push-Pull Reset Output $0.76
    ADM6824 9 Options--1.58 to 4.63V 140 Active-High/Push-Pull, Active-Low/Push-Pull No 1,600 No SOT Low Voltage Supervisory Circuit w/ Watchdog, Manual Reset, Active-Hi & Low Push-Pull Reset Output -
    ADM699 4.65V 140 Active-High/Push-Pull, Active-Low/Push-Pull No 1,600 No DIP, SOIC µP Supv w/ Watchdog, 4.65V Trip Point, Low Supply Current and Active Low Reset Output $1.68
    ADM705 4.65V 160 Active-Low/Push-Pull Yes 1,600 Yes DIP, SOIC µP Supv w/ 4.65V Trip Voltage, Watchdog, Pwr Fail, Manual Reset & Active Low Reset Output $1.02
    ADM706 4.4V 160 Active-Low/Push-Pull