MAX811SEUS

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MAX811SEUS

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Supervisory Circuits 4-Pin uP Voltage Monitors with Manual Re

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Übersicht

Description

The MAX811SEUS is a microprocessor supervisory circuit designed to monitor the power supply levels in digital systems. It ensures that microprocessors operate correctly by asserting a reset signal during power-up, power-down, or when the power supply voltage falls below a predetermined threshold. This helps in preventing undefined states in microprocessors, which can lead to improper system behavior.
Key features of the MAX811SEUS include a low supply current, a precision voltage reference, and a manual reset input for versatility. Its small package size makes it ideal for space-constrained applications. The device operates with a supply voltage range suitable for most microprocessor systems, and it provides a reset timeout period to allow the system to stabilize before the processor resumes operation.
Overall, the MAX811SEUS is a reliable solution for enhancing the robustness of electronic devices by ensuring microprocessor stability in varying power conditions.

Equivalent

The MAX811SEUS is a microprocessor supervisory circuit. Equivalent products include:
1. ADM811 series by Analog Devices
2. TPS3110 series by Texas Instruments
3. MCP101 series by Microchip Technology
4. CAT811 series by ON Semiconductor
5. LM809 series by STMicroelectronics
These alternatives offer similar functions like reset threshold voltages, active-low reset output, and manual reset capabilities, suitable for microprocessor or microcontroller applications. Always verify specifications to ensure full compatibility.

Features

The MAX811SEUS is a microprocessor supervisory circuit designed to monitor the power supply voltage level in electronic devices. Its key features include:
1. Reset Functionality: Provides a reset signal to the microprocessor during power-up, power-down, and brownout conditions to ensure reliable system operation.
2. Reset Threshold: The device has a fixed reset threshold voltage of 4.38V, suitable for monitoring standard supply voltages.
3. Reset Timeout: Features a 140ms minimum reset timeout period to allow stabilization of the system after power events.
4. Low Supply Current: Consumes a minimal amount of power, enhancing efficiency in low-power applications.
5. Manual Reset Input: Includes a manual reset input for external override, allowing for flexible control.
6. Push-Pull Output: Equipped with a push-pull reset output configuration, suitable for applications requiring both pull-up and pull-down capabilities.
7. Wide Operating Temperature Range: Operates effectively within the range of -40°C to +85°C, making it suitable for various environmental conditions.
These features make the MAX811SEUS ideal for ensuring reliable system resets and voltage monitoring in a variety of microprocessor-based applications.

Pinout

The MAX811SEUS is a microprocessor supervisory circuit designed to monitor power supplies in digital systems. It typically comes in a small SOT-143 package, which has a pin count of 4.
The functions of these pins are as follows:
1. GND (Pin 1): Ground pin, connected to the system ground.
2. RESET (Pin 2): Active-low reset output. It asserts a reset signal when the monitored voltage drops below a preset threshold or during power-up.
3. VCC (Pin 3): Power supply input. It monitors the voltage level of the system's power supply.
4. N.C. (Pin 4): No connection or sometimes used for additional functions based on specific configurations.
The MAX811SEUS ensures reliable operation by generating a reset signal to the microprocessor during power-up, power-down, and brownout conditions, thereby preventing erratic system behavior.

Manufacturer

The MAX811SEUS is manufactured by Maxim Integrated. Maxim Integrated is a company that specializes in designing and manufacturing analog and mixed-signal integrated circuits. These products are used in a wide range of applications including consumer electronics, industrial devices, automotive systems, and communication technologies. Maxim Integrated is known for producing components that enhance the performance, efficiency, and functionality of electronic devices. In 2021, Maxim Integrated was acquired by Analog Devices, Inc., another major player in the semiconductor industry, which further expanded their portfolio and market presence.

Application

The MAX811SEUS is a microprocessor supervisory circuit used primarily to monitor the power supply voltage in digital systems. Its key applications include:
1. Embedded Systems: Ensures reliable power-up and power-down sequencing.
2. Consumer Electronics: Maintains system stability by preventing faulty operation during voltage fluctuations.
3. Industrial Automation: Monitors critical systems to avoid data corruption and system crashes.
4. Computing Devices: Protects microcontrollers and FPGAs from under-voltage conditions.
5. Networking Equipment: Ensures uninterrupted operation of routers and switches.
6. Telecommunication Systems: Provides reliability in base stations and other critical infrastructures.
Its small size and low power consumption make it ideal for portable and battery-powered applications.

Package

The MAX811SEUS is a microprocessor supervisory circuit typically available in a SOT-143 package. This small outline transistor package is designed for compact applications, offering easy surface-mounting on printed circuit boards.

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