Features and Benefits

  • 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

Product Details

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.


  • Automotive systems
  • Network equipment
  • Computers, controllers, and embedded systems
  • Data Sheet, Rev. 0, 10/08

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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.

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