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AD5100(Rev0) Datasheet PDF - Analog Devices

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The AD5100 is a programmable system management IC that combines four channels of voltage monitoring and watchdog supervision. The AD5100 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 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 7.96 V input. Most monitoring input thresholds and timing settings can be programmed on-the-fly or permanently set with the OTP memory feature.

    2 device-enabling outputs with 6 programmable monitoring
        inputs (see Table 1)
    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
        OTP1 for permanent threshold and timing settings
        OTP can be overwritten for dynamic adjustments
        Power-up by edge triggered signal
        Power-down over I2C bus
    Operating range
        Supply voltage: 6.0 V to 30 V
        Temperature range: −40°C to +125°C
    Shutdown current: 5 μA max
    Operating current: 2 mA max
    High voltage input antimigration shielding pinouts

    Automotive systems
    Network equipment
    Computers, controllers, and embedded systems

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