Automotive ASIL-D 7-Channel Power-System Monitor

Industry's Only Auto-Qualified, ASIL-D Power-System Monitor with Challenge/Response Watchdog

Please check latest availability status for a specific part variant.


The MAX20480 is a complete ASIL-compliant SoC power-system monitor with up to seven voltage monitor inputs. Each input has programmable OV/UV thresholds of between 2.5% and 10% with ±1% accuracy. Two of the inputs have a separate remote ground-sense input and support DVS through the integrated I2C interface.

The MAX20480 contains a programmable flexible power sequence recorder (FPSR). This recorder stores power-up and power-down timestamps separately, and supports on/off and sleep/standby power sequences. The MAX20480 also contains a programmable challenge/response watchdog, which is accessible through the I2C interface, along with a configurable active-low RESET output.

The MAX20480 improves reliability while significantly reducing system size and component count, compared to separate ICs or discrete components. The MAX20480 meets ASIL-D reliability when used with a supervisory controller. The device is designed to operate over the ambient temperature range of -40°C to +125°C.

Key Features

  • Small Solution
    • 2.35V to 5.50V Operating Supply Voltage
    • Only One External Component Required
    • 150µA Operating Current
    • 8µA Power-Down Mode
  • High Precision
    • Selectable 102.5% to 110% OV Monitors
    • Selectable 97.5% to 90% UV Monitors
    • ±1% Accuracy
    • 0.5% Step Size
    • ASIL-D Compliance
  • Highly Integrated
    • Five Fixed-Voltage Monitoring Inputs
    • Two Differential DVS Tracking-Voltage Monitoring Inputs with Remote-Ground Sense
    • Power-Sequencing Recording
    • Simple or Challenge/Response Windowed Watchdog
    • Fault Recording
    • CRC on I2C Interface
    • Programmable I2C Address
    • OTP Configuration with Error-Correcting Code and Reload Functionality
    • Programmable Active-Low RESET Pin
  • 16-Pin Side-Wettable TQFN with Exposed Pad (3mm x 3mm)
  • AEC-Q100 Qualified
  • -40°C to +125°C Operating Temperature


  • ADAS
  • Autonomous Driving Processing Systems
  • Power System Supervision and MCU/SoC Monitoring
  • Remote Sensor Modules
Part NumberMonitored VoltagesInterfaceReset Thresh.
Reset OuttRESETWatchdog FeatureWatchdog TimeoutSupervisor FeaturesICC
MAX20480 7Factory Fixed
0 to 1.2
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
Open Drain
1ms to 15ms
15ms to 85ms
Input (WDI)1s to 2sOvervoltage/Window Monitor210
See All Supervisors (> 5 Monitored Voltages) (13)
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.

MAX20480EVKIT: Evaluation Kit for the MAX20480

Quality and Environmental Data

Request Reliability Report for: MAX20480 
Lead-Free Package Tin (Sn) Whisker Reports

CAD Symbols and Footprints

  • MAX20480DATEA/VY+
  • MAX20480DATEB/VY+
  • MAX20480DATEC/VY+
  • MAX20480DATED/VY+
  • MAX20480DATEE/VY+
  • 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.

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    Environmental Management System >


    Related Resources

    High-Precision Supervisory with Window Watchdog and Overvoltage Indicator

    • ±1% Accuracy
    • Enables ASIL Compliance at System Level
    • 0.5V to 5V Threshold Range with 20mV Increments

    High-Accuracy 4-Channel, Any-Input Supervisory Circuits

    • Valid Active-Low RESET Logic State for Any Input Above 1V
    • ±1% Accuracy for All Inputs
    • Low 17μA Supply Current