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Application Notes

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  • Over 2000 application notes and technical articles written by engineers, for engineers.
  • You can comment on any application note and contribute to the engineering community.
  • These articles offer experienced analysis, design ideas, reference designs, and tutorials—to make you an expert.

    Microprocessor Supervisor Circuits

  • Battery-Backup ICs and NV RAM Controllers
  • Multivoltage Monitors
  • Power-Supply Sequencers and Voltage Trackers
  • Regulators with Integrated Reset
  • Simple Reset/Power-On Reset (POR)
    		•  
  • Switch Debouncers and Pushbutton Devices
  • Tutorials
  • Voltage Detectors and Battery Monitors
  • Watchdog Timers
    		•

    View   In New Window PDF
    104.6kB     		Tutorial 4606  Abstract
    Self-Starting Can Be Hard to Do—Understanding Power-on-Reset Requirements in Regulators and Bandgaps
    View   In New Window PDF
    45kB     		Application Note 4197  Abstract
    Using the DS4412 to Margin the Output Voltage of a DC-DC Converter
    View   In New Window PDF
    448.5kB     		Application Note 5149  Abstract
    Adding Autorestart Capability to the MAX16046 EEPROM-Programmable System Manager
    View   In New Window   Application Note 4728  Abstract
    Using Window Comparators in Secure Managers
    View   In New Window PDF
    105.1kB     		Application Note 5040  Abstract
    Voltage Monitoring in Complex Systems
    View   In New Window PDF
    84kB     		Application Note 4285  Abstract
    In-Circuit Programming for the MAX16046–MAX16049 EEPROM-Programmable System Managers

    Battery-Backup ICs and NV RAM Controllers

    View   In New Window PDF
    25kB     		Application Note 3323  Abstract
    Power-Backup Switch
    View   In New Window PDF
    188kB     		Application Note 926  Abstract
    Simple Circuit Disconnects Load From Battery
    View   In New Window PDF
    29kB     		Application Note 1000  Abstract
    Battery-Switchover Circuit Accommodates 3V Systems
    View   In New Window PDF
    70kB     		Application Note 1136  Abstract
    Switching Between Battery and External Power Sources
    View   In New Window PDF
    52kB     		Application Note 3191  Abstract
    Protecting Against Shorts Between a Battery and the PWM Wall Cube Charging Supply
    View   In New Window PDF
    43kB     		Application Note 608  Abstract
    Micropower Circuit Offers Automatic Shutdown and Low-Battery Lockout
    View   In New Window PDF
    47kB     		Tutorial 939  Abstract
    Choosing Supervisor Outputs
    View   In New Window PDF
    104kB     		Tutorial 720  Abstract
    Keep the Product Working—Microprocessor Supervisors Offer Big Insurance in Small Packages
    View   In New Window PDF
    74kB     		Application Note 3254  Abstract
    Battery Monitoring in NV SRAM Modules
    View   In New Window PDF
    96kB     		Application Note 1195  Abstract
    Maximize Battery Life and Minimize Replacements
    View   In New Window PDF
    57kB     		Tutorial 589  Abstract
    CPU Supervisors: Frequently Asked Questions (FAQs)
    View   In New Window PDF
    27kB     		Application Note 423  Abstract
    Latching Regulator Prevents Deep Discharge of Battery
    View   In New Window PDF
    28kB     		Application Note 1050  Abstract
    Reset Circuit Ensures Valid Supply Voltage
    View   In New Window PDF
    103kB     		Application Note 655 
    Supervisor ICs Monitor Battery-Powered Equipment
    View   In New Window PDF
    31kB     		Application Note 42  Abstract
    Large Capacitor Replaces Backup Battery
    View   In New Window PDF
    38kB     		Application Note 51  Abstract
    How to Save Data During a Power Fail Without Corrupting It

    Multivoltage Monitors

    View   In New Window PDF
    136kB     		Application Note 3227  Abstract
    Power-On Reset and Related Supervisory Functions
    View   In New Window PDF
    44kB     		Application Note 4839  Abstract
    Supervise and Power-Sequence a SoC
    View   In New Window PDF
    88kB     		Tutorial 279  Abstract
    Supervisory Circuits Keep Your Microprocessor Under Control
    View   In New Window PDF
    66kB     		Application Note 487  Abstract
    MAX6652 System Monitor Combines Voltage Monitoring with Temperature Sensing
    View   In New Window PDF
    28kB     		Application Note 500  Abstract
    5-Comparator IC Provides 3V-to-5V Regulator and µP Reset
    View   In New Window PDF
    104kB     		Application Note 1926  Abstract
    Watchdogs Improve System Reliability—How to Choose the Right Part
    View   In New Window PDF
    105.1kB     		Application Note 5040  Abstract
    Voltage Monitoring in Complex Systems
    View   In New Window PDF
    104kB     		Tutorial 720  Abstract
    Keep the Product Working—Microprocessor Supervisors Offer Big Insurance in Small Packages
    View   In New Window PDF
    47kB     		Tutorial 939  Abstract
    Choosing Supervisor Outputs
    View   In New Window PDF
    92kB     		Application Note 2853  Abstract
    Supervisors in Multivoltage Systems
    View   In New Window PDF
    57kB     		Tutorial 589  Abstract
    CPU Supervisors: Frequently Asked Questions (FAQs)
    View   In New Window PDF
    186kB     		Application Note 236  Abstract
    Configuring the DS1831's Time Delays and Voltage Trip Levels in Multi-Power-Supply Systems
    View   In New Window PDF
    160kB     		Application Note 3601  Abstract
    Troubleshooting Windows Plug-and-Play and USB for Maxim Evaluation Kits
    View   In New Window PDF
    56kB     		Application Note 4284  Abstract
    External Temperature Sensor Calibration for the MAX16031/MAX16032 System Monitors
    View   In New Window PDF
    103kB     		Application Note 655 
    Supervisor ICs Monitor Battery-Powered Equipment
    View   In New Window PDF
    80kB     		Application Note 4283  Abstract
    In-Circuit Programming of the MAX16031/MAX16032 EEPROM-Based System Monitors
    View   In New Window PDF
    97kB     		Application Note 3567  Abstract
    Monitoring and Sequencing Supply Voltages in High-Reliability Systems
    View   In New Window PDF
    93kB     		Application Note 4518  Abstract
    Circuit Transfers Resistance Value Through Isolation Barrier
    View   In New Window PDF
    52kB     		Application Note 4109  Abstract
    Low-Cost Power-Supply Sequencer
    View   In New Window PDF
    57kB     		Application Note 4543  Abstract
    Precision Circuit Monitors Negative-Supply Thresholds
    View   In New Window PDF
    200kB     		Application Note 1043  Abstract
    Single Supply Sequencer Sequences Negative Voltages

    Power-Supply Sequencers and Voltage Trackers

    View   In New Window PDF
    186kB     		Application Note 236  Abstract
    Configuring the DS1831's Time Delays and Voltage Trip Levels in Multi-Power-Supply Systems
    View   In New Window PDF
    92kB     		Application Note 2853  Abstract
    Supervisors in Multivoltage Systems
    View   In New Window PDF
    28kB     		Application Note 500  Abstract
    5-Comparator IC Provides 3V-to-5V Regulator and µP Reset
    View   In New Window PDF
    44kB     		Application Note 4839  Abstract
    Supervise and Power-Sequence a SoC
    View   In New Window PDF
    78kB     		Application Note 4568  Abstract
    Bipolar DC-Voltage Detector Offers Sensitivity and Precision
    View   In New Window PDF
    96kB     		Application Note 841  Abstract
    Staggered- or Simultaneous-Output Voltage Sequencing/Tracking is Flexible for xDSL and Cable Modem Systems
    View   In New Window PDF
    97kB     		Application Note 3567  Abstract
    Monitoring and Sequencing Supply Voltages in High-Reliability Systems
    View   In New Window PDF
    200kB     		Application Note 1043  Abstract
    Single Supply Sequencer Sequences Negative Voltages
    View   In New Window PDF
    160kB     		Application Note 3601  Abstract
    Troubleshooting Windows Plug-and-Play and USB for Maxim Evaluation Kits
    View   In New Window PDF
    77kB     		Application Note 3811  Abstract
    Simple Devices for Meeting Voltage Tracking Requirements
    View   In New Window PDF
    52kB     		Application Note 4109  Abstract
    Low-Cost Power-Supply Sequencer
    View   In New Window PDF
    155kB     		Application Note 4631  Abstract
    Sequencing with the MAX16046 System-Management IC
    View   In New Window PDF
    448.5kB     		Application Note 5149  Abstract
    Adding Autorestart Capability to the MAX16046 EEPROM-Programmable System Manager
    View   In New Window PDF
    81kB     		Application Note 4715  Abstract
    In-Circuit Programming for the MAX16065–MAX16068 and MAX16070/MAX16071 Flash-Programmable System Managers
    View   In New Window PDF
    66kB     		Application Note 487  Abstract
    MAX6652 System Monitor Combines Voltage Monitoring with Temperature Sensing
    View   In New Window PDF
    136kB     		Application Note 3227  Abstract
    Power-On Reset and Related Supervisory Functions
    View   In New Window PDF
    48kB     		Application Note 4565  Abstract
    Ramp Generator Controls DC-DC Converters

    Regulators with Integrated Reset

    View   In New Window PDF
    33kB     		Application Note 3283  Abstract
    One Button Turns Microprocessor On and Off
    View   In New Window PDF
    57kB     		Application Note 4081  Abstract
    Alternate Circuits for Overvoltage Protection: Tips and Tricks
    View   In New Window PDF
    103kB     		Application Note 655 
    Supervisor ICs Monitor Battery-Powered Equipment
    View   In New Window PDF
    29kB     		Application Note 1000  Abstract
    Battery-Switchover Circuit Accommodates 3V Systems
    View   In New Window PDF
    27kB     		Application Note 423  Abstract
    Latching Regulator Prevents Deep Discharge of Battery
    View   In New Window PDF
    33kB     		Application Note 1156  Abstract
    Low-Cost AC Supply
    View   In New Window PDF
    43kB     		Application Note 608  Abstract
    Micropower Circuit Offers Automatic Shutdown and Low-Battery Lockout

    Simple Reset/Power-On Reset (POR)

    View   In New Window PDF
    111kB     		Application Note 581  Abstract
    Advantages of Using a MicroMonitor and a Simple Application Demonstrating the Use of a DS1232
    View   In New Window PDF
    97kB     		Application Note 3567  Abstract
    Monitoring and Sequencing Supply Voltages in High-Reliability Systems
    View   In New Window PDF
    67kB     		Application Note 4850  Abstract
    Microcontroller Controls Current-Loop AFE Protection
    View   In New Window PDF
    33kB     		Application Note 1156  Abstract
    Low-Cost AC Supply
    View   In New Window PDF
    104.6kB     		Tutorial 4606  Abstract
    Self-Starting Can Be Hard to Do—Understanding Power-on-Reset Requirements in Regulators and Bandgaps
    View   In New Window PDF
    74kB     		Application Note 3254  Abstract
    Battery Monitoring in NV SRAM Modules
    View   In New Window PDF
    57kB     		Tutorial 589  Abstract
    CPU Supervisors: Frequently Asked Questions (FAQs)
    View   In New Window PDF
    21kB     		Application Note 1987  Abstract
    Auto-Retry Controller Suits Telecom Applications
    View   In New Window PDF
    70kB     		Application Note 164  Abstract
    Using the DS1814 MicroMonitor to Control Microprocessor Resets
    View   In New Window PDF
    47kB     		Tutorial 939  Abstract
    Choosing Supervisor Outputs
    View   In New Window PDF
    43kB     		Application Note 4467  Abstract
    Wake up and hear the IR
    View   In New Window PDF
    103kB     		Application Note 655 
    Supervisor ICs Monitor Battery-Powered Equipment
    View   In New Window PDF
    28kB     		Application Note 1050  Abstract
    Reset Circuit Ensures Valid Supply Voltage
    View   In New Window PDF
    88kB     		Tutorial 279  Abstract
    Supervisory Circuits Keep Your Microprocessor Under Control
    View   In New Window PDF
    136kB     		Application Note 3227  Abstract
    Power-On Reset and Related Supervisory Functions
    View   In New Window PDF
    104kB     		Tutorial 720  Abstract
    Keep the Product Working—Microprocessor Supervisors Offer Big Insurance in Small Packages
    View   In New Window PDF
    37kB     		Application Note 4624  Abstract
    Nonvolatile STANDBY/ON Switch

    Switch Debouncers and Pushbutton Devices

    View   In New Window PDF
    31kB     		Application Note 582  Abstract
    Watchdog Timer Assumes Varied Roles
    View   In New Window PDF
    54kB     		Application Note 287  Abstract
    Switch Bounce and Other Dirty Little Secrets
    View   In New Window PDF
    30kB     		Application Note 1802  Abstract
    Few Components Needed for an ESD-Protected Solid-State Potentiometer (EPOT) System with Two Pushbuttons
    View   In New Window PDF
    49kB     		Application Note 1865  Abstract
    Different Ways to Use a MAX6369 Series Watchdog Timer
    View   In New Window PDF
    28kB     		Application Note 893  Abstract
    Switch-Debouncer IC Creates A Long-Period Timer
    View   In New Window PDF
    28kB     		Application Note 1858  Abstract
    Tiny IC Debounces Pushbutton Switch
    View   In New Window PDF
    448.5kB     		Application Note 5149  Abstract
    Adding Autorestart Capability to the MAX16046 EEPROM-Programmable System Manager
    View   In New Window PDF
    30kB     		Application Note 4444  Abstract
    Single-Pushbutton ON/OFF Power Control
    View   In New Window PDF
    39kB     		Application Note 3743  Abstract
    Circuit Removes Relay-Contact Bounce
    View   In New Window PDF
    37kB     		Application Note 1837  Abstract
    One-Shot Timing Improves Microprocessor Reset Circuit
    View   In New Window PDF
    61kB     		Application Note 4626  Abstract
    Multiple-Pulse Generator Aids IC Testing
    View   In New Window PDF
    37kB     		Application Note 4624  Abstract
    Nonvolatile STANDBY/ON Switch
    View   In New Window PDF
    28kB     		Application Note 892  Abstract
    Watchdog Timer Allows Entry to Test Mode
    View   In New Window PDF
    33kB     		Application Note 3283  Abstract
    One Button Turns Microprocessor On and Off

    Tutorials

    View   In New Window PDF
    104kB     		Tutorial 720  Abstract
    Keep the Product Working—Microprocessor Supervisors Offer Big Insurance in Small Packages
    View   In New Window PDF
    97kB     		Application Note 3567  Abstract
    Monitoring and Sequencing Supply Voltages in High-Reliability Systems
    View   In New Window PDF
    57kB     		Application Note 4081  Abstract
    Alternate Circuits for Overvoltage Protection: Tips and Tricks
    View   In New Window PDF
    57kB     		Tutorial 589  Abstract
    CPU Supervisors: Frequently Asked Questions (FAQs)
    View   In New Window PDF
    47kB     		Tutorial 939  Abstract
    Choosing Supervisor Outputs
    View   In New Window PDF
    104kB     		Application Note 1926  Abstract
    Watchdogs Improve System Reliability—How to Choose the Right Part
    View   In New Window PDF
    103kB     		Application Note 655 
    Supervisor ICs Monitor Battery-Powered Equipment
    View   In New Window PDF
    77kB     		Application Note 3811  Abstract
    Simple Devices for Meeting Voltage Tracking Requirements
    View   In New Window PDF
    88kB     		Tutorial 279  Abstract
    Supervisory Circuits Keep Your Microprocessor Under Control
    View   In New Window PDF
    136kB     		Application Note 3227  Abstract
    Power-On Reset and Related Supervisory Functions

    Voltage Detectors and Battery Monitors

    View   In New Window PDF
    74kB     		Application Note 3254  Abstract
    Battery Monitoring in NV SRAM Modules
    View   In New Window PDF
    78kB     		Application Note 4568  Abstract
    Bipolar DC-Voltage Detector Offers Sensitivity and Precision
    View   In New Window PDF
    111kB     		Application Note 581  Abstract
    Advantages of Using a MicroMonitor and a Simple Application Demonstrating the Use of a DS1232
    View   In New Window PDF
    57kB     		Application Note 4081  Abstract
    Alternate Circuits for Overvoltage Protection: Tips and Tricks
    View   In New Window PDF
    21kB     		Application Note 1987  Abstract
    Auto-Retry Controller Suits Telecom Applications
    View   In New Window PDF
    70kB     		Application Note 164  Abstract
    Using the DS1814 MicroMonitor to Control Microprocessor Resets
    View   In New Window PDF
    57kB     		Tutorial 589  Abstract
    CPU Supervisors: Frequently Asked Questions (FAQs)
    View   In New Window PDF
    104kB     		Tutorial 720  Abstract
    Keep the Product Working—Microprocessor Supervisors Offer Big Insurance in Small Packages
    View   In New Window PDF
    47kB     		Tutorial 939  Abstract
    Choosing Supervisor Outputs
    View   In New Window PDF
    136kB     		Application Note 3227  Abstract
    Power-On Reset and Related Supervisory Functions
    View   In New Window PDF
    28kB     		Application Note 1050  Abstract
    Reset Circuit Ensures Valid Supply Voltage
    View   In New Window PDF
    103kB     		Application Note 655 
    Supervisor ICs Monitor Battery-Powered Equipment
    View   In New Window PDF
    57kB     		Application Note 4519  Abstract
    Simple and Easy Power-OK Indicator Detects Under- and Over-Voltage
    View   In New Window PDF
    33kB     		Application Note 1156  Abstract
    Low-Cost AC Supply
    View   In New Window PDF
    88kB     		Tutorial 279  Abstract
    Supervisory Circuits Keep Your Microprocessor Under Control
    View   In New Window PDF
    97kB     		Application Note 3567  Abstract
    Monitoring and Sequencing Supply Voltages in High-Reliability Systems
    View   In New Window PDF
    105kB     		Application Note 4545  Abstract
    Flexible Overvoltage/Undervoltage Detector Monitors Negative and Positive Voltages

    Watchdog Timers

    View   In New Window PDF
    31kB     		Application Note 582  Abstract
    Watchdog Timer Assumes Varied Roles
    View   In New Window PDF
    70kB     		Application Note 4567  Abstract
    Simple Timeout Protection for High Current Flash LED Drivers
    View   In New Window PDF
    70kB     		Application Note 164  Abstract
    Using the DS1814 MicroMonitor to Control Microprocessor Resets
    View   In New Window PDF
    56kB     		Application Note 4558  Abstract
    Simple Latching Watchdog Timer
    View   In New Window PDF
    104kB     		Tutorial 720  Abstract
    Keep the Product Working—Microprocessor Supervisors Offer Big Insurance in Small Packages
    View   In New Window PDF
    88kB     		Tutorial 279  Abstract
    Supervisory Circuits Keep Your Microprocessor Under Control
    View   In New Window PDF
    47kB     		Tutorial 939  Abstract
    Choosing Supervisor Outputs
    View   In New Window PDF
    92kB     		Application Note 1070  Abstract
    Windowed Watchdog Enhances µP Supervisors
    View   In New Window PDF
    67kB     		Application Note 4850  Abstract
    Microcontroller Controls Current-Loop AFE Protection
    View   In New Window PDF
    57kB     		Application Note 3623  Abstract
    Battery-Charger PWM Input Has Watchdog Protection
    View   In New Window PDF
    57kB     		Tutorial 589  Abstract
    CPU Supervisors: Frequently Asked Questions (FAQs)
    View   In New Window PDF
    49kB     		Application Note 1865  Abstract
    Different Ways to Use a MAX6369 Series Watchdog Timer
    View   In New Window PDF
    28kB     		Application Note 892  Abstract
    Watchdog Timer Allows Entry to Test Mode
    View   In New Window PDF
    104kB     		Application Note 1926  Abstract
    Watchdogs Improve System Reliability—How to Choose the Right Part


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