MAX20479

RECOMMENDED FOR NEW DESIGNS

Two/Three-Input Automotive Voltage Monitor with Watchdog

ASIL-B 2-3 Automotive Input Voltage Monitor with Watchdog

Data Sheet (Rev. 6) Product Selection Table
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Overview

  • Small Solution
    • 2.35V to 5.50V Operating Supply Voltage
    • Only One External Component Required
    • 125μA Operating Current
  • High Precision
    • Selectable 102.5% to 110% OV Monitors
    • Selectable 97.5% to 90% UV Monitors
    • ±0.8% Accuracy
    • 0.5% Step Size
    • ASIL B Compliance
  • Highly Integrated
    • MAX20479A/C - Two Voltage Monitoring Inputs
    • MAX20479B/D - Three Voltage Monitoring Inputs
    • Windowed Watchdog
    • OTP Configuration with Error-Correcting Code
    • Programmable RESET1 and RESET2 Pins
  • 10-Pin, Side-Wettable TDFN with Exposed Pad (3mmx 3mm) (Two Different Package Options)
  • AEC-Q100 Qualified
  • -40°C to +125°C Operating Temperature
MAX20479
Two/Three-Input Automotive Voltage Monitor with Watchdog
MAX20479 Simplified Block Diagram
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Documentation

Data Sheet 1

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Evaluation Kits

MAX20479EVKIT

Evaluation Kit for the MAX20478

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Features and Benefits

  • Single Supply Operation with 2.35V to 5.5V Input Supply Range
  • IN1-2 Voltage Monitor Channels Capable of Monitoring 0.5V to 3.6875V
  • IN3 Voltage Monitor Channel Capable of Monitoring 0.5V to 5.6V
  • OTP Controlled Voltage Monitoring with ECC
  • Selectable 102.5% to 110% OV Monitors
  • Selectable 97.5% to 90% UV Monitors
  • 0.5% Step Size
  • 0.8% Voltage Accuracy
  • ASIL-D Compliance (MAX20478)
  • ASIL-B Compliance (MAX20479)
  • Programmable Active-Low RESET1 and Active-Low RESET2 Pins
  • Jumpers and Test Points on Key Nodes for Simplified Evaluation
  • -40C° to +125C° Automotive Temperature Range
  • Automotive Grade External Components
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Details

The MAX20479 evaluation kit (EV kit) is a fully assembled and tested application circuit for the MAX20478/MAX20479: Two/ three input automotive voltage monitor with watchdog. The EV kit is created with automotive grade components and can test all functionality of the IC including watchdog and redundant supply monitoring. Various test points and jumpers are included to allow for various functionalities of the IC to be tested.

Applications

  • Advanced Driver-Assistance Systems
  • Autonomous Driving Processing Systems
  • Power System Supervision and Microcontroller Unit/System-on-a-Chip Monitoring
  • Remote Sensor Modules
MAX20479EVKIT
Evaluation Kit for the MAX20478

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