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Application Notes

Over 2200 application notes and technical articles written by engineers, for engineers.
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These articles offer experienced analysis, design ideas, reference designs, and tutorials—to make you an expert.

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Newest appnotes

Microprocessor supervisor circuits

1. Tutorials
2. Simple reset/power-on reset (POR)
3. Voltage detectors and battery monitors
4. Multivoltage monitors
5. Power-supply sequencers and voltage trackers

6. Battery-backup ICs and NV RAM controllers
7. Watchdog timers
8. Switch debouncers and pushbutton devices
9. Regulators with integrated reset

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App Note 4728 Abstract
Using window comparators in secure managers

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PDF (74K)

App Note 4270 Abstract
High-voltage watchdog timers enhance automotive system safety

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PDF (82K)

App Note 4285 Abstract
In-Circuit Programming for the MAX16046–MAX16049 EEPROM-Programmable System Managers

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PDF (45K)

App Note 4197 Abstract
Using the DS4412 to Margin the Output Voltage of a DC-DC Converter

1. Tutorials

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PDF (57K)

App Note 4081 Abstract
Alternate Circuits for Overvoltage Protection: Tips and Tricks

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PDF (39K)

App Note 3918 Abstract
User's Guide for the MAX6877 Power-Supply Tracker/Sequencer

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PDF (94K)

App Note 3917 Abstract
The MAX6876 Power-Supply Tracker/Sequencer User Guide

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WINDOW

PDF (77K)

App Note 3811 Abstract
Simple Devices for Meeting Voltage Tracking Requirements

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WINDOW

PDF (97K)

App Note 3567 Abstract
Monitoring and Sequencing Supply Voltages in High-Reliability Systems

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PDF (136K)

App Note 3227 Abstract
Power-On Reset and Related Supervisory Functions

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PDF (104K)

App Note 1926 Abstract
Watchdogs Improve System Reliability—How to Choose the Right Part

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PDF (47K)

App Note 939 Abstract
Choosing Supervisor Outputs

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PDF (88K)

App Note 279 Abstract
Supervisory Circuits Keep Your Microprocessor Under Control

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PDF (54K)

App Note 589 Abstract
CPU supervisors: frequently asked questions (FAQs)

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PDF (87K)

App Note 720 Abstract
Keep the product working—microprocessor supervisors offer big insurance in small packages

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PDF (103K)

App Note 655 Abstract
Supervisor ICs Monitor Battery-Powered Equipment

2. Simple reset/power-on reset (POR)

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PDF (43K)

App Note 4467 Abstract
Wake up and hear the IR

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PDF (37K)

App Note 4624 Abstract
Nonvolatile STANDBY/ON Switch

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PDF (34K)

App Note 3932 Abstract
Using the MAXQ3210 as a Microprocessor Supervisor

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IN NEW
WINDOW

PDF (97K)

App Note 3567 Abstract
Monitoring and Sequencing Supply Voltages in High-Reliability Systems

VIEW

IN NEW
WINDOW

PDF (136K)

App Note 3227 Abstract
Power-On Reset and Related Supervisory Functions

VIEW

IN NEW
WINDOW

PDF (74K)

App Note 3254 Abstract
Battery Monitoring in NV SRAM Modules

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PDF (21K)

App Note 1987 Abstract
Auto-Retry Controller Suits Telecom Applications

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PDF (33K)

App Note 1156 Abstract
Low-Cost AC Supply

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PDF (47K)

App Note 939 Abstract
Choosing Supervisor Outputs

VIEW

IN NEW
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PDF (88K)

App Note 279 Abstract
Supervisory Circuits Keep Your Microprocessor Under Control

VIEW

IN NEW
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PDF (54K)

App Note 589 Abstract
CPU supervisors: frequently asked questions (FAQs)

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PDF (28K)

App Note 1050 Abstract
Reset Circuit Ensures Valid Supply Voltage

VIEW

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PDF (87K)

App Note 720 Abstract
Keep the product working—microprocessor supervisors offer big insurance in small packages

VIEW

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PDF (70K)

App Note 164 Abstract
Using the DS1814 MicroMonitor to Control Microprocessor Resets

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PDF (111K)

App Note 581 Abstract
Advantages of Using a MicroMonitor and a Simple Application Demonstrating the Use of a DS1232

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PDF (103K)

App Note 655 Abstract
Supervisor ICs Monitor Battery-Powered Equipment

3. Voltage detectors and battery monitors

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PDF (57K)

App Note 4081 Abstract
Alternate Circuits for Overvoltage Protection: Tips and Tricks

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PDF (76K)

App Note 4040 Abstract
User's Guide to the DS28DG02

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PDF (34K)

App Note 3932 Abstract
Using the MAXQ3210 as a Microprocessor Supervisor

VIEW

IN NEW
WINDOW

PDF (97K)

App Note 3567 Abstract
Monitoring and Sequencing Supply Voltages in High-Reliability Systems

VIEW

IN NEW
WINDOW

PDF (136K)

App Note 3227 Abstract
Power-On Reset and Related Supervisory Functions

VIEW

IN NEW
WINDOW

PDF (74K)

App Note 3254 Abstract
Battery Monitoring in NV SRAM Modules

VIEW

IN NEW
WINDOW

PDF (21K)

App Note 1987 Abstract
Auto-Retry Controller Suits Telecom Applications

VIEW

IN NEW
WINDOW

PDF (33K)

App Note 1156 Abstract
Low-Cost AC Supply

VIEW

IN NEW
WINDOW

PDF (47K)

App Note 939 Abstract
Choosing Supervisor Outputs

VIEW

IN NEW
WINDOW

PDF (88K)

App Note 279 Abstract
Supervisory Circuits Keep Your Microprocessor Under Control

VIEW

IN NEW
WINDOW

PDF (54K)

App Note 589 Abstract
CPU supervisors: frequently asked questions (FAQs)

VIEW

IN NEW
WINDOW

PDF (28K)

App Note 1050 Abstract
Reset Circuit Ensures Valid Supply Voltage

VIEW

IN NEW
WINDOW

PDF (87K)

App Note 720 Abstract
Keep the product working—microprocessor supervisors offer big insurance in small packages

VIEW

IN NEW
WINDOW

PDF (70K)

App Note 164 Abstract
Using the DS1814 MicroMonitor to Control Microprocessor Resets

VIEW

IN NEW
WINDOW

PDF (111K)

App Note 581 Abstract
Advantages of Using a MicroMonitor and a Simple Application Demonstrating the Use of a DS1232

VIEW

IN NEW
WINDOW

PDF (103K)

App Note 655 Abstract
Supervisor ICs Monitor Battery-Powered Equipment

4. Multivoltage monitors

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PDF (67K)

App Note 4283 Abstract
In-Circuit Programming of the MAX16031/MAX16032 EEPROM-Based System Monitors

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PDF (56K)

App Note 4284 Abstract
External Temperature Sensor Calibration for the MAX16031/MAX16032 System Monitors

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PDF (49K)

App Note 4109 Abstract
Low-Cost Power-Supply Sequencer

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PDF (94K)

App Note 3917 Abstract
The MAX6876 Power-Supply Tracker/Sequencer User Guide

VIEW

IN NEW
WINDOW

PDF (160K)

App Note 3601 Abstract
Troubleshooting Windows Plug-and-Play and USB for Maxim Evaluation Kits

VIEW

IN NEW
WINDOW

PDF (97K)

App Note 3567 Abstract
Monitoring and Sequencing Supply Voltages in High-Reliability Systems

VIEW

IN NEW
WINDOW

PDF (136K)

App Note 3227 Abstract
Power-On Reset and Related Supervisory Functions

VIEW

IN NEW
WINDOW

PDF (92K)

App Note 2853 Abstract
Supervisors in Multivoltage Systems

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PDF (104K)

App Note 1926 Abstract
Watchdogs Improve System Reliability—How to Choose the Right Part

VIEW

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WINDOW

PDF (186K)

App Note 236 Abstract
Configuring the DS1831's Time Delays and Voltage Trip Levels in Multi-Power-Supply Systems

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PDF (28K)

App Note 500 Abstract
5-Comparator IC Provides 3V-to-5V Regulator and µP Reset

VIEW

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PDF (47K)

App Note 939 Abstract
Choosing Supervisor Outputs

VIEW

IN NEW
WINDOW

PDF (88K)

App Note 279 Abstract
Supervisory Circuits Keep Your Microprocessor Under Control

VIEW

IN NEW
WINDOW

PDF (54K)

App Note 589 Abstract
CPU supervisors: frequently asked questions (FAQs)

VIEW

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PDF (200K)

App Note 1043 Abstract
Single Supply Sequencer Sequences Negative Voltages

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PDF (87K)

App Note 720 Abstract
Keep the product working—microprocessor supervisors offer big insurance in small packages

VIEW

IN NEW
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PDF (66K)

App Note 487 Abstract
MAX6652 System Monitor Combines Voltage Monitoring with Temperature Sensing

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PDF (103K)

App Note 655 Abstract
Supervisor ICs Monitor Battery-Powered Equipment

5. Power-supply sequencers and voltage trackers

VIEW

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WINDOW

PDF (81K)

App Note 4715 Abstract
In-circuit programming for the MAX16065–MAX16068 and MAX16070–MAX16071 flash-programmable system managers

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PDF (155K)

App Note 4631 Abstract
Sequencing with the MAX16046 System-Management IC

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PDF (49K)

App Note 4109 Abstract
Low-Cost Power-Supply Sequencer

VIEW

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PDF (34K)

App Note 3932 Abstract
Using the MAXQ3210 as a Microprocessor Supervisor

VIEW

IN NEW
WINDOW

PDF (39K)

App Note 3918 Abstract
User's Guide for the MAX6877 Power-Supply Tracker/Sequencer

VIEW

IN NEW
WINDOW

PDF (94K)

App Note 3917 Abstract
The MAX6876 Power-Supply Tracker/Sequencer User Guide

VIEW

IN NEW
WINDOW

PDF (77K)

App Note 3811 Abstract
Simple Devices for Meeting Voltage Tracking Requirements

VIEW

IN NEW
WINDOW

PDF (160K)

App Note 3601 Abstract
Troubleshooting Windows Plug-and-Play and USB for Maxim Evaluation Kits

VIEW

IN NEW
WINDOW

PDF (97K)

App Note 3567 Abstract
Monitoring and Sequencing Supply Voltages in High-Reliability Systems

VIEW

IN NEW
WINDOW

PDF (136K)

App Note 3227 Abstract
Power-On Reset and Related Supervisory Functions

VIEW

IN NEW
WINDOW

PDF (92K)

App Note 2853 Abstract
Supervisors in Multivoltage Systems

VIEW

IN NEW
WINDOW

PDF (186K)

App Note 236 Abstract
Configuring the DS1831's Time Delays and Voltage Trip Levels in Multi-Power-Supply Systems

VIEW

IN NEW
WINDOW

PDF (28K)

App Note 500 Abstract
5-Comparator IC Provides 3V-to-5V Regulator and µP Reset

VIEW

IN NEW
WINDOW

PDF (200K)

App Note 1043 Abstract
Single Supply Sequencer Sequences Negative Voltages

VIEW

IN NEW
WINDOW

PDF (87K)

App Note 841 Abstract
Multiple Output Power Supplies with Output Sequencing

VIEW

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PDF (66K)

App Note 487 Abstract
MAX6652 System Monitor Combines Voltage Monitoring with Temperature Sensing

6. Battery-backup ICs and NV RAM controllers

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PDF (25K)

App Note 3323 Abstract
Power-Backup Switch

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PDF (74K)

App Note 3254 Abstract
Battery Monitoring in NV SRAM Modules

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PDF (52K)

App Note 3191 Abstract
Protecting Against Shorts Between a Battery and the PWM Wall Cube Charging Supply

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PDF (96K)

App Note 1195 Abstract
Maximize Battery Life and Minimize Replacements

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PDF (70K)

App Note 1136 Abstract
Switching Between Battery and External Power Sources

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PDF (47K)

App Note 939 Abstract
Choosing Supervisor Outputs

VIEW

IN NEW
WINDOW

PDF (54K)

App Note 589 Abstract
CPU supervisors: frequently asked questions (FAQs)

VIEW

IN NEW
WINDOW

PDF (28K)

App Note 1050 Abstract
Reset Circuit Ensures Valid Supply Voltage

VIEW

IN NEW
WINDOW

PDF (87K)

App Note 720 Abstract
Keep the product working—microprocessor supervisors offer big insurance in small packages

VIEW

IN NEW
WINDOW

PDF (43K)

App Note 608 Abstract
Micropower Circuit Offers Automatic Shutdown and Low-Battery Lockout

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PDF (38K)

App Note 51 Abstract
How to Save Data During a Power Fail without Corrupting It

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PDF (103K)

App Note 655 Abstract
Supervisor ICs Monitor Battery-Powered Equipment

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PDF (29K)

App Note 1000 Abstract
Battery-Switchover Circuit Accommodates 3V Systems

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PDF (62K)

App Note 64 Abstract
Provide Battery Backup For Pseudo-Static RAMs

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PDF (31K)

App Note 42 Abstract
Large Capacitor Replaces Backup Battery

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PDF (28K)

App Note 1049 Abstract
Supply Circuitry Selects Main/Backup Voltage and Disconnects Load

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PDF (188K)

App Note 926 Abstract
Simple Circuit Disconnects Load From Battery

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PDF (34K)

App Note 423 Abstract
Latching Regulator Prevents Deep Discharge Of Battery

7. Watchdog timers

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PDF (76K)

App Note 4040 Abstract
User's Guide to the DS28DG02

VIEW

IN NEW
WINDOW

PDF (34K)

App Note 3932 Abstract
Using the MAXQ3210 as a Microprocessor Supervisor

VIEW

IN NEW
WINDOW

PDF (57K)

App Note 3623 Abstract
Battery-Charger PWM Input Has Watchdog Protection

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PDF (104K)

App Note 1926 Abstract
Watchdogs Improve System Reliability—How to Choose the Right Part

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IN NEW
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PDF (49K)

App Note 1865 Abstract
Different Ways to Use a MAX6369 Series Watchdog Timer

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PDF (92K)

App Note 1070 Abstract
Windowed Watchdog Enhances µP Supervisors

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PDF (47K)

App Note 939 Abstract
Choosing Supervisor Outputs

VIEW

IN NEW
WINDOW

PDF (88K)

App Note 279 Abstract
Supervisory Circuits Keep Your Microprocessor Under Control

VIEW

IN NEW
WINDOW

PDF (54K)

App Note 589 Abstract
CPU supervisors: frequently asked questions (FAQs)

VIEW

IN NEW
WINDOW

PDF (28K)

App Note 892 Abstract
Watchdog Timer Allows Entry to Test Mode

VIEW

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PDF (87K)

App Note 720 Abstract
Keep the product working—microprocessor supervisors offer big insurance in small packages

VIEW

IN NEW
WINDOW

PDF (70K)

App Note 164 Abstract
Using the DS1814 MicroMonitor to Control Microprocessor Resets

VIEW

IN NEW
WINDOW

PDF (31K)

App Note 582 Abstract
Watchdog Timer Assumes Varied Roles

8. Switch debouncers and pushbutton devices

VIEW

IN NEW
WINDOW

PDF (37K)

App Note 4624 Abstract
Nonvolatile STANDBY/ON Switch

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PDF (61K)

App Note 4626 Abstract
Multiple-Pulse Generator Aids IC Testing

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PDF (30K)

App Note 4444 Abstract
Single-Pushbutton ON/OFF Power Control

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PDF (34K)

App Note 3932 Abstract
Using the MAXQ3210 as a Microprocessor Supervisor

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PDF (39K)

App Note 3743 Abstract
Circuit Removes Relay-Contact Bounce

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PDF (33K)

App Note 3283 Abstract
One Button Turns Microprocessor On and Off

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PDF (37K)

App Note 1837 Abstract
One-Shot Timing Improves Microprocessor Reset Circuit

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PDF (49K)

App Note 1865 Abstract
Different Ways to Use a MAX6369 Series Watchdog Timer

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PDF (32K)

App Note 1802 Abstract
ESD-Protected EPOT System has Pushbutton Interface

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PDF (28K)

App Note 893 Abstract
Switch-Debouncer IC Creates A Long-Period Timer

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PDF (28K)

App Note 892 Abstract
Watchdog Timer Allows Entry to Test Mode

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PDF (28K)

App Note 1858 Abstract
Tiny IC Debounces Pushbutton Switch

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PDF (31K)

App Note 582 Abstract
Watchdog Timer Assumes Varied Roles

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PDF (54K)

App Note 287 Abstract
Switch Bounce and Other Dirty Little Secrets

9. Regulators with integrated reset

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PDF (57K)

App Note 4081 Abstract
Alternate Circuits for Overvoltage Protection: Tips and Tricks

VIEW

IN NEW
WINDOW

PDF (33K)

App Note 3283 Abstract
One Button Turns Microprocessor On and Off

VIEW

IN NEW
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PDF (33K)

App Note 1156 Abstract
Low-Cost AC Supply

VIEW

IN NEW
WINDOW

PDF (43K)

App Note 608 Abstract
Micropower Circuit Offers Automatic Shutdown and Low-Battery Lockout

VIEW

IN NEW
WINDOW

PDF (103K)

App Note 655 Abstract
Supervisor ICs Monitor Battery-Powered Equipment

VIEW

IN NEW
WINDOW

PDF (62K)

App Note 64 Abstract
Provide Battery Backup For Pseudo-Static RAMs

VIEW

IN NEW
WINDOW

PDF (29K)

App Note 1000 Abstract
Battery-Switchover Circuit Accommodates 3V Systems

VIEW

IN NEW
WINDOW

PDF (28K)

App Note 1049 Abstract
Supply Circuitry Selects Main/Backup Voltage and Disconnects Load

VIEW

IN NEW
WINDOW

PDF (34K)

App Note 423 Abstract
Latching Regulator Prevents Deep Discharge Of Battery

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