Supervisory Circuits
Analog Devices power supply voltage monitors and microprocessor supervisors monitor positive and negative power supplies, with integration of up to eight supply monitors in a tiny package. These devices generate a reset signal if any power supply goes above or below the user-defined threshold. Reset times are usually fixed at 200 ms or are adjustable with a single capacitor. Aside from power supply monitoring, CPUs and ASICs can also be supervised by an integrated watchdog timer.
Subcategories
Product Selection Table
Latest Resources
Application Note
- In-Circuit Programming of the MAX16031/MAX16032 EEPROM-Based System Monitors
- In-Circuit Programming for the MAX16046–MAX16049 EEPROM-Programmable System Managers
- In-Circuit Programming for the MAX16065–MAX16068 and MAX16070/MAX16071 Flash-Programmable System Managers
- Advantages of Using a MicroMonitor and a Simple Application Demonstrating the Use of a DS1232
- Using the LTC2937 A Step-by-Step Guide to Sequencing and Supervision PDF
Rarely Asked Question
Design Note
- Microcontroller Controls Current-Loop AFE Protection
- Low-Cost Power-Supply Sequencer
- Watchdog Timer Assumes Varied Roles
- SMT Assembly and PCB Design Guidelines for Leaded Packages
- External Temperature Sensor Calibration for the MAX16031/MAX16032 System Monitors
Product Selector Card
- Voltage Monitors and Supervisors Product Highlights PDF
- Power System Manager and Super Sequencer Selection Guide PDF
- Programmable Six Supply Sequencer and Supervisor PDF
- Voltage Monitors & Supervisors Quick Guide PDF
- Digital Power System Management PDF
Technical Article
- The ABCs of Glitch-free Voltage Supervisors
- How Glitch-Free Supervisors Aid in High-Reliability Applications
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Adding Hysteresis for Smooth Undervoltage and Overvoltage Lockout
Analog Dialogue
- A Reliable Power-Up and Power-Down Sequence
- Design with MAX16132-MAX16135 Supervisors