Specifications
| Attribute | Value |
| Package | Tube |
| ProductStatus | Active |
| Type | Simple Reset/Power-On Reset |
| NumberofVoltagesMonitored | 1 |
| Voltage-Threshold | 4.65V |
| Output | Open Drain or Open Collector |
| Reset | Active Low |
| ResetTimeout | 280ms Minimum |
| OperatingTemperature | -55°C ~ 125°C |
| MountingType | Through Hole |
| Package/Case | 16-CDIP (0.300, 7.62mm) |
Overview
Description
The MAX791MJE is a microprocessor supervisory circuit designed to monitor power supply levels in digital systems. It ensures reliable operation by keeping track of the voltage levels and providing reset signals during power-up, power-down, and brownout conditions. The device is part of the MAX791 series, known for its precision and reliability in maintaining system stability.
Key features of the MAX791MJE include a reset timeout period and a manual reset input that allows users to initiate a system reset. The device typically monitors 3V or 5V power supplies and provides a push-pull reset output. It is designed to be highly accurate, with a low quiescent current, making it suitable for battery-operated applications.
This supervisory circuit is often used in microprocessor and microcontroller applications to prevent the system from operating under insufficient voltage conditions, which could lead to erratic behavior or data corruption. Its compact design and robust functionality make it an essential component in ensuring the integrity and reliability of electronic systems.
Key features of the MAX791MJE include a reset timeout period and a manual reset input that allows users to initiate a system reset. The device typically monitors 3V or 5V power supplies and provides a push-pull reset output. It is designed to be highly accurate, with a low quiescent current, making it suitable for battery-operated applications.
This supervisory circuit is often used in microprocessor and microcontroller applications to prevent the system from operating under insufficient voltage conditions, which could lead to erratic behavior or data corruption. Its compact design and robust functionality make it an essential component in ensuring the integrity and reliability of electronic systems.
Equivalent
Equivalent products to the MAX791MJE chip, a microprocessor supervisory circuit, include:
1. Texas Instruments TPS3820 - A similar voltage supervisor with reset functionality.
2. ON Semiconductor NCP3063 - Offers similar monitoring and reset capabilities.
3. Microchip Technology MCP131 - Provides voltage monitoring and reset features.
4. STMicroelectronics STM809 - Known for voltage monitoring and reset capabilities.
5. Analog Devices ADM690 - Includes power-fail detection and reset generation like the MAX791.
Ensure compatibility in terms of specifications and footprint when selecting an equivalent.
1. Texas Instruments TPS3820 - A similar voltage supervisor with reset functionality.
2. ON Semiconductor NCP3063 - Offers similar monitoring and reset capabilities.
3. Microchip Technology MCP131 - Provides voltage monitoring and reset features.
4. STMicroelectronics STM809 - Known for voltage monitoring and reset capabilities.
5. Analog Devices ADM690 - Includes power-fail detection and reset generation like the MAX791.
Ensure compatibility in terms of specifications and footprint when selecting an equivalent.
Features
The MAX791MJE is a microprocessor supervisory circuit designed to monitor system voltages and provide power-fail warnings, ensuring reliable operation. Key features include:
1. Voltage Monitoring: It supervises the power supply voltage to ensure it stays within specified limits.
2. Reset Output: Provides a reset signal to the microprocessor during power-up, power-down, and brownout conditions to prevent erratic operation.
3. Low Supply Current: Operates with a low quiescent current, making it energy-efficient.
4. Precision Threshold: Offers accurate voltage detection threshold, ensuring timely intervention.
5. Watchdog Timer: Monitors microprocessor activity and resets the system if it detects a fault, enhancing reliability.
6. Manual Reset Input: Allows external control for resetting the system.
7. Backup Battery Management: Supports switching to backup battery power during primary power failure.
8. Compact Package: Available in a small form factor, ideal for space-constrained applications.
These features make the MAX791MJE suitable for a wide range of applications in power-sensitive environments, ensuring system stability and protection.
1. Voltage Monitoring: It supervises the power supply voltage to ensure it stays within specified limits.
2. Reset Output: Provides a reset signal to the microprocessor during power-up, power-down, and brownout conditions to prevent erratic operation.
3. Low Supply Current: Operates with a low quiescent current, making it energy-efficient.
4. Precision Threshold: Offers accurate voltage detection threshold, ensuring timely intervention.
5. Watchdog Timer: Monitors microprocessor activity and resets the system if it detects a fault, enhancing reliability.
6. Manual Reset Input: Allows external control for resetting the system.
7. Backup Battery Management: Supports switching to backup battery power during primary power failure.
8. Compact Package: Available in a small form factor, ideal for space-constrained applications.
These features make the MAX791MJE suitable for a wide range of applications in power-sensitive environments, ensuring system stability and protection.
Pinout
The MAX791MJE is a microprocessor supervisory circuit. It typically comes in an 8-pin package. The primary functions of the MAX791MJE include monitoring the power supply voltage to ensure proper operation of a microprocessor system, generating a reset signal during power-up, power-down, and brownout conditions to prevent erratic system behavior, and providing a watchdog timer that forces a reset if the microprocessor does not toggle a particular input within a set time frame. Additionally, it can offer a manual reset input and a low-line output indicator. These features are essential for maintaining the reliability and stability of microprocessor-based systems.
Manufacturer
The MAX791MJE is manufactured by Maxim Integrated, which is a part of Analog Devices, Inc. Maxim Integrated is known for designing and manufacturing analog and mixed-signal integrated circuits. The company focuses on various sectors, including industrial, communications, consumer, and automotive markets. As a part of Analog Devices, Maxim Integrated contributes to providing high-performance semiconductor solutions, enhancing the capabilities of electronic devices across diverse applications.
Application
The MAX791MJE is a microprocessor supervisory circuit designed primarily for monitoring the power supply in microprocessor-based systems. Its primary application areas include:
1. Embedded Systems: Ensuring reliability by monitoring voltage levels and providing reset signals to prevent erroneous operations.
2. Industrial Control: Maintaining system integrity in automated control systems by supervising power supply conditions.
3. Communication Equipment: Protecting processors in networking and telecommunication devices from power faults.
4. Consumer Electronics: Enhancing the stability and performance of devices like set-top boxes and home appliances.
5. Automotive Electronics: Providing fail-safe operation by supervising the supply voltage in automotive control units.
1. Embedded Systems: Ensuring reliability by monitoring voltage levels and providing reset signals to prevent erroneous operations.
2. Industrial Control: Maintaining system integrity in automated control systems by supervising power supply conditions.
3. Communication Equipment: Protecting processors in networking and telecommunication devices from power faults.
4. Consumer Electronics: Enhancing the stability and performance of devices like set-top boxes and home appliances.
5. Automotive Electronics: Providing fail-safe operation by supervising the supply voltage in automotive control units.
Package
The MAX791MJE is a microprocessor supervisory circuit typically available in a ceramic Dual In-line Package (DIP). This package type provides enhanced reliability and is suitable for various applications requiring precise monitoring and control of microprocessor functions.
