MAX811SEUS+TG50

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Monitor and Reset Generator
• Characteristics: Low-power, precision voltage monitor with manual reset input
• Package: SOT-143
• Essence: Monitors the power supply voltage of a microprocessor or other digital system and holds the microprocessor in reset until the supply voltage has reached and stabilized at the proper operating level.
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.2V to 5.5V
• Manual Reset Input Threshold Voltage: 0.2V to 0.9V
• Power-On Reset Timeout Period: 140ms (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

1. GND: Ground
2. MR: Manual Reset Input
3. VCC: Positive Supply Voltage
4. RESET: Active-Low Reset Output

Functional Features

• Precision monitoring of power supply voltage
• Manual reset input for immediate system reset
• Guaranteed reset output valid down to VCC = 1V
• Low supply current of 7µA (typical)
• Open-drain RESET output can be pulled up to any voltage
• Power-on reset timeout period ensures proper system initialization

Advantages

• Provides reliable voltage monitoring and reset generation for microprocessors and digital systems
• Low-power consumption helps conserve energy
• Flexible reset output allows compatibility with various system configurations
• Wide operating temperature range enables usage in harsh environments

Disadvantages

• Limited to monitoring and resetting voltage levels within the specified range
• Requires external components for proper operation
• SOT-143 package may not be suitable for all applications

Working Principles

The MAX811SEUS+TG50 is designed to monitor the power supply voltage of a microprocessor or digital system. It compares the supply voltage with a fixed threshold and generates a reset signal when the voltage falls below the threshold. The manual reset input allows for an immediate system reset, overriding the voltage monitoring function. The open-drain RESET output can be pulled up to any voltage, providing flexibility in system design.

Detailed Application Field Plans

• Microprocessor-based systems
• Digital control systems
• Battery-powered devices
• Embedded systems
• Industrial automation

Detailed and Complete Alternative Models

1. MAX811LEUS+TG50: Similar to MAX811SEUS+TG50 but with a different package (SOT-23)
2. MAX811REUS+TG50: Similar to MAX811SEUS+TG50 but with a wider operating temperature range (-40°C to +125°C)
3. MAX811TEUS+TG50: Similar to MAX811SEUS+TG50 but with a higher manual reset input threshold voltage (0.4V to 1.2V)

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