MAX803REXR+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Monitor
• Characteristics: Low Power, Precision, Reset Output
• Package: SOT-23-3
• Essence: Supervisory Circuit
• Packaging/Quantity: Tape & Reel, 3000 pieces 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 MAX803REXR+T IC has a SOT-23-3 package with the following pin configuration:

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

Functional Features

• Monitors the supply voltage and provides a reset output when the voltage drops below a specified threshold.
• Offers four different reset threshold voltage options to suit various applications.
• Provides a reset timeout period to ensure proper system reset.
• Low power consumption makes it suitable for battery-powered devices.
• Precision voltage monitoring ensures accurate reset functionality.

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows compatibility with various systems. - Multiple reset threshold voltage and timeout period options provide flexibility. - Low power consumption extends battery life in portable devices. - Precision voltage monitoring ensures reliable system reset.

Disadvantages: - Limited to SOT-23-3 package, which may not be suitable for all applications. - Lack of adjustable reset threshold voltage limits customization options.

Working Principles

The MAX803REXR+T is a supervisory circuit that monitors the supply voltage of a system. When the voltage drops below the specified threshold, it generates a reset output signal. This signal can be used to reset microcontrollers, processors, or other digital logic devices, ensuring proper system operation.

The IC operates within a wide supply voltage range of 1.0V to 5.5V, making it compatible with various systems. It offers multiple reset threshold voltage options, allowing designers to select the appropriate level for their specific application. The reset timeout period ensures that the reset output remains active for a sufficient duration to guarantee a complete system reset.

With low power consumption and precision voltage monitoring, the MAX803REXR+T is suitable for battery-powered devices where energy efficiency and accurate reset functionality are crucial.

Detailed Application Field Plans

The MAX803REXR+T finds applications in various fields, including:

1. Embedded Systems: Used to monitor and reset microcontrollers in embedded systems, ensuring reliable operation.
2. Consumer Electronics: Provides voltage monitoring and reset functionality in devices such as smartphones, tablets, and gaming consoles.
3. Industrial Automation: Ensures proper system reset in industrial control systems, preventing malfunctions and downtime.
4. Medical Devices: Monitors voltage levels in medical equipment, triggering a reset when necessary to maintain patient safety.
5. Automotive Electronics: Used in automotive systems to monitor and reset critical components, enhancing overall reliability.

Detailed and Complete Alternative Models

1. MAX809REUR+T: Similar to MAX803REXR+T but available in a SOT-23-3 package with different reset threshold voltage options.
2. MAX811TEUS+T: Offers additional features like manual reset input and watchdog timer in a SOT-143 package.
3. MAX809SEUR+T: Provides a higher reset threshold voltage range in a SOT-23-3 package.

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