MAX809REUR

The MAX809REUR is a microprocessor supervisory circuit designed to monitor power supplies in digital systems. It ensures that the microprocessor remains in a known state during power-up, power-down, and brownout conditions. This device is part of the MAX809 series, known for its low supply current and precision voltage monitoring capabilities.
Key features include a reset output that remains active whenever the monitored voltage is below the specified threshold, ensuring that the microprocessor is reset and in a safe state. The reset output is open-drain, allowing it to interface with various logic levels. The MAX809REUR typically operates at a threshold voltage around 2.93V, making it suitable for 3V systems. Its low power consumption and small SOT23 package make it ideal for portable and space-constrained applications.
The MAX809REUR enhances system reliability by preventing improper operations during power fluctuations. It is commonly used in applications like microcontrollers, embedded systems, and other digital electronics that require reliable power supervision.

The MAX809REUR is a microprocessor supervisory circuit. Equivalent products include the MCP130 series from Microchip, the TL7705 series from Texas Instruments, and the ADM809 series from Analog Devices. These alternatives offer similar functionality, including monitoring power supply levels and providing reset signals to microprocessors. Always check the specific voltage threshold and timing requirements to ensure compatibility with your application.

The MAX809REUR is a microprocessor supervisory circuit designed to monitor the power supply voltage in microprocessor systems. Here are its key features:
1. Voltage Monitoring: It monitors the supply voltage and provides a reset to the microprocessor when the voltage drops below a preset threshold.
2. Reset Output: The device has an active-low reset output, ensuring that the microprocessor is reset during power-up, power-down, and brownout conditions.
3. Precision Monitoring: The reset threshold is set with high precision, typically around 2.93V for the MAX809REUR variant.
4. Low Supply Current: It consumes very low current, typically around 1µA, making it suitable for battery-operated applications.
5. Fast Response: The device features a quick reset timeout period, typically around 140ms, ensuring rapid response to voltage changes.
6. Operating Temperature Range: It operates over a wide temperature range, typically from -40°C to +85°C.
7. Package: The MAX809REUR is available in a compact SOT-23 package.
These features make the MAX809REUR ideal for ensuring reliable operation of microprocessor-based systems by preventing faulty operation during power anomalies.

The MAX809REUR is a 3-pin microprocessor supervisory circuit designed to monitor the supply voltage in digital systems. It ensures that the microcontroller is reset when the supply voltage drops below a preset threshold, thereby preventing improper operation. The three pins are typically detailed as follows:
1. VCC: This pin is connected to the power supply voltage that you wish to monitor.
2. GND: This pin is connected to ground.
3. RESET: This pin outputs the reset signal. It remains low when VCC is below the threshold and stays low for a certain period after VCC exceeds the threshold, ensuring a stable microcontroller startup.
The MAX809REUR is commonly used in applications to prevent undefined behavior during power-up, power-down, and brownout conditions by ensuring that the system remains in a reset state until the power is stable.

The MAX809REUR is manufactured by Maxim Integrated, which is a subsidiary of Analog Devices, Inc. Maxim Integrated is known for designing and manufacturing analog and mixed-signal integrated circuits. The company specializes in creating a wide range of products, including power management ICs, sensors, data converters, interface ICs, and more, serving various sectors such as consumer electronics, automotive, communications, and industrial applications. In August 2021, Maxim Integrated was acquired by Analog Devices, a company that similarly focuses on designing and producing a broad array of analog, mixed-signal, and digital signal processing (DSP) integrated circuits used in electronic equipment. Analog Devices serves industries such as aerospace, defense, automotive, healthcare, and consumer electronics, providing solutions that enhance the performance and energy efficiency of systems and devices.

The MAX809REUR is a microprocessor supervisory circuit used primarily in applications that require monitoring of microprocessor or microcontroller power supplies. Its main purpose is to ensure reliable system performance by resetting the processor during power-up, power-down, or brownout conditions. Common application areas include:
1. Embedded systems: Ensuring stable operation by preventing the processor from executing code during inadequate power conditions.
2. Consumer electronics: Used in devices like televisions, gaming consoles, and set-top boxes for reliable power management.
3. Industrial control systems: Protecting microcontrollers in automation and control equipment.
4. Automotive electronics: Monitoring and resetting microcontrollers in ECUs and infotainment systems.
5. Networking and communication devices: Ensuring reliable operation of routers, modems, and switches during power fluctuations.

The MAX809REUR is typically available in a SOT-23 package type, which is a small-outline, 3-pin transistor package commonly used for surface-mounted devices.