MAX803LEXR+T10

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Monitor
• Characteristics: Low Power, Precision, Reset Output
• Package: SOT-23-3
• Essence: Monitors voltage levels and provides a reset signal when the voltage drops below a specified threshold.
• Packaging/Quantity: Tape & 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: 140ms, 560ms, 1120ms, 2240ms
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX803LEXR+T10 IC has three pins:

1. GND: Ground pin for reference potential.
2. RESET: Output pin that goes low when the monitored voltage falls below the threshold.
3. VCC: Supply voltage input pin.

Functional Features

• Monitors the supply voltage and generates a reset signal when it falls below the specified threshold.
• Provides a precise and stable reset output.
• Low power consumption, suitable for battery-powered applications.
• Offers multiple options for reset threshold voltage and timeout period.
• Small form factor package allows for space-efficient designs.

Advantages and Disadvantages

Advantages

• Precise voltage monitoring ensures reliable system operation.
• Low power consumption extends battery life in portable devices.
• Multiple options for reset threshold and timeout provide flexibility for different applications.
• Small package size enables compact circuit designs.

Disadvantages

• Limited to voltage monitoring and reset functionality, may not be suitable for complex system requirements.
• SOT-23-3 package may require additional care during soldering due to its small size.

Working Principles

The MAX803LEXR+T10 operates by continuously monitoring the supply voltage connected to the VCC pin. When the voltage drops below the specified threshold, the RESET pin goes low, indicating a reset condition. The reset signal remains active until the voltage rises above the threshold and the timeout period elapses.

Detailed Application Field Plans

The MAX803LEXR+T10 is commonly used in various applications where reliable voltage monitoring and reset functionality are required. Some of the typical application fields include:

1. Microcontrollers: Ensures proper initialization and system stability during power-up or voltage fluctuations.
2. Embedded Systems: Provides a reset signal to restart the system in case of power supply issues.
3. Industrial Control Systems: Monitors critical voltages to prevent malfunctions and ensure safe operation.
4. Automotive Electronics: Protects sensitive components from voltage variations and ensures proper functioning.
5. Battery-Powered Devices: Maximizes battery life by initiating a reset when the voltage drops below a certain level.

Detailed and Complete Alternative Models

1. MAX809LEXR+T10: Similar to MAX803LEXR+T10 but with different reset threshold voltage options.
2. MAX811TEXR+T10: Voltage monitor with manual reset input and adjustable reset timeout period.
3. MAX812REUS+T10: Supervisory circuit with watchdog timer and adjustable reset threshold.

These alternative models offer similar functionality with slight variations in features and specifications.

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