MAX811REUS+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Monitor and Reset Generator
• Characteristics: Low-power, precision voltage monitor with reset output
• Package: SOT-143
• Essence: Monitors the power supply voltage of a microcontroller or other digital systems and generates a reset signal when the voltage drops below a specified threshold.
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.2V to 5.5V
• Threshold Voltage Options: 2.93V, 3.08V, 3.63V, 4.38V
• Reset Timeout Period: 140ms (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX811REUS+T has the following pin configuration:

1. GND: Ground connection
2. RESET: Active-low reset output
3. MR: Manual reset input
4. VCC: Power supply voltage input

Functional Features

• Monitors the power supply voltage continuously
• Generates a reset signal when the voltage drops below the set threshold
• Provides a manual reset option through the MR pin
• Low-power consumption for battery-powered applications
• Precision voltage monitoring for reliable system operation

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows compatibility with various systems - Multiple threshold voltage options for flexibility in different applications - Small package size enables space-saving designs - Low-power operation extends battery life - Reliable voltage monitoring ensures system stability

Disadvantages: - Limited reset timeout period may not be suitable for all applications - Manual reset feature requires an external signal source

Working Principles

The MAX811REUS+T operates by continuously monitoring the power supply voltage connected to the VCC pin. When the voltage drops below the set threshold, the RESET pin is driven low, indicating a reset condition. The reset signal remains active until the voltage rises above the threshold or a manual reset signal is applied to the MR pin.

Detailed Application Field Plans

The MAX811REUS+T finds applications in various fields, including:

1. Microcontroller Systems: Provides reliable reset generation for microcontrollers, ensuring proper initialization and system stability.
2. Industrial Control Systems: Monitors power supply voltage in industrial control systems, preventing erratic behavior due to voltage fluctuations.
3. Embedded Systems: Ensures proper functioning of embedded systems by generating resets when the power supply voltage falls outside the specified range.
4. Battery-Powered Devices: Extends battery life in portable devices by efficiently monitoring voltage levels and initiating resets when necessary.

Detailed and Complete Alternative Models

• MAX809REUR+: Similar functionality with a different package (SOT-23)
• MAX810LEUR+: Lower supply voltage range (1.0V to 5.5V) with a different package (SOT-23)
• MAX813LESA+: Dual voltage monitor with adjustable threshold options and a different package (SOIC)

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