MAX803REXR+T10

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: Low-power, microprocessor reset circuit
• Package: SOT-23-3
• Essence: Ensures reliable system operation by monitoring the power supply voltage
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.0V to 5.5V
• Reset Threshold Voltage Options: 2.63V, 2.93V, 3.08V, 4.38V
• Reset Timeout Period Options: 1.6ms, 20ms, 140ms, 1120ms
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX803REXR+T10 has a standard SOT-23-3 package with the following pin configuration:

• Pin 1: GND (Ground)
• Pin 2: RESET (Reset Output)
• Pin 3: VCC (Power Supply)

Functional Features

• Monitors the power supply voltage and asserts the reset output when the voltage drops below the specified threshold.
• Provides a debounced reset signal to the microprocessor, ensuring a reliable reset operation.
• Offers a choice of reset threshold voltage and timeout period options to suit different system requirements.
• Consumes low quiescent current, making it suitable for battery-powered applications.

Advantages and Disadvantages

Advantages: - Reliable voltage monitoring for enhanced system stability. - Flexible options for reset threshold voltage and timeout period. - Low power consumption for extended battery life. - Compact SOT-23-3 package for space-constrained designs.

Disadvantages: - Limited number of reset threshold voltage and timeout period options. - Not suitable for high-voltage applications.

Working Principles

The MAX803REXR+T10 operates by continuously monitoring the power supply voltage. When the voltage drops below the specified threshold, the reset output is asserted, indicating a power failure or unstable voltage condition. The reset signal remains active until the voltage rises above the threshold and the timeout period elapses. This ensures that the microprocessor is properly reset and prevents erratic behavior during power-up or voltage fluctuations.

Application Field Plans

The MAX803REXR+T10 is widely used in various electronic systems where reliable voltage monitoring and microprocessor reset functionality are required. Some application fields include:

1. Embedded Systems: Provides a stable reset operation for microcontrollers, ensuring proper initialization and preventing software glitches.
2. Industrial Automation: Ensures uninterrupted operation of control systems by monitoring the power supply voltage and initiating a reset when necessary.
3. Automotive Electronics: Enhances the reliability of automotive electronic systems by monitoring the battery voltage and resetting the microcontroller in case of voltage drops or transients.
4. Medical Devices: Guarantees the safe operation of medical equipment by monitoring the power supply voltage and initiating a reset if voltage deviations occur.

Alternative Models

• MAX803SEXR+T10
• MAX803TEXR+T10
• MAX803XEXR+T10

These alternative models offer similar functionality and characteristics to the MAX803REXR+T10, providing flexibility in choosing the most suitable voltage supervisor for specific applications.

Word count: 345 words