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Three- to Five-Input Power-System Monitor with Clock Monitor and Watchdog

A Complete ASIL D Compliant SoC Power-System Monitor with up to Five Voltage Monitor Inputs

Product Details

Key Features

Parametric specs for Supervisors (2 Monitored Voltages)
Package/Pins TQFN-CU/16
Budgetary
Price (See Notes)
1.87
Parametric specs for Supervisors (4 Monitored Voltages)
Package/Pins TQFN-CU/16
Budgetary
Price (See Notes)
1.87
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Parametric specs for Supervisors (3 Monitored Voltages)
Package/Pins TQFN-CU/16
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Parametric specs for Resets and Supervisors with Pushbutton Manual Reset Inputs
Package/Pins TQFN-CU/16
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Parametric specs for Supervisors (> 5 Monitored Voltages)
Package/Pins TQFN-CU/16
View Less

Simplified Block Diagram

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.

Parameters

Parametric specs for Supervisors (2 Monitored Voltages)
Package/Pins TQFN-CU/16
Budgetary
Price (See Notes)
1.87
Parametric specs for Supervisors (4 Monitored Voltages)
Package/Pins TQFN-CU/16
Budgetary
Price (See Notes)
1.87
Parametric specs for Supervisors (3 Monitored Voltages)
Package/Pins TQFN-CU/16
Parametric specs for Resets and Supervisors with Pushbutton Manual Reset Inputs
Package/Pins TQFN-CU/16
Parametric specs for Supervisors (<u>></u> 5 Monitored Voltages)
Package/Pins TQFN-CU/16

Key Features

  • Small Solution
    • 2.35V to 5.60V Operating Supply Voltage
    • Only One External Component Required
    • 150µA Operating Current
    • 8µA Power-Down Mode
    • Universal Channel Configurations
  • High Precision
    • Selectable 102.5% to 110% OV Monitors
    • Selectable 97.5% to 90% UV Monitors
    • ±0.8% Accuracy with 0.5% Step Size
    • ASIL D Compliance
  • Highly Integrated
    • Five Fixed-Voltage Monitoring Inputs
    • Clock/Fault Monitor Input (25kHz to 50MHz)
    • 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
    • Two Independently Programmable Active-Low RESET Pins
  • 3mm x 3mm, 16-Pin, Side-Wettable TQFN-EP
  • AEC-Q100 Qualified
  • -40°C to +125°C Operating Temperature

Applications/Uses

  • ADAS
  • Autonomous Driving Processing Systems
  • Power System Supervision and MCU/SoC Monitoring
  • Remote Sensor Modules

Description

The MAX20484 is a complete ASIL D compliant SoC power system monitor with up to five voltage monitor inputs. Each input has programmable OV/UV thresholds of between 2.5% and 10% with ±0.8% accuracy.

The MAX20484 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 MAX20484 also contains a programmable challenge/response watchdog, which is accessible through the I2C interface, and an external clock/fault monitor along with two configurable active-low RESET outputs.

The MAX20484 significantly reduces system size and component count while improving reliability, as compared to separate ICs or discrete components. The MAX20484 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.

Simplified Block Diagram

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.