MAX803SEXR+TG05

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Detector
• Characteristics: Low-power, reset output, adjustable threshold voltage
• Package: SOT-23-3
• Essence: Monolithic microprocessor supervisory circuit
• 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
• Quiescent Current: 1µA (typical)
• Reset Timeout Period: 140ms (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX803SEXR+TG05 has a standard 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 asserts a reset signal when it falls below the threshold voltage.
• Adjustable threshold voltage options allow flexibility in system design.
• Low quiescent current ensures minimal power consumption.
• Reset timeout period prevents false resets during power-up or voltage fluctuations.

Advantages and Disadvantages

Advantages: - Small form factor and low power consumption make it suitable for portable devices. - Adjustable threshold voltage provides customization options. - Reliable reset functionality enhances system stability.

Disadvantages: - Limited number of threshold voltage options may not meet all application requirements. - Lack of additional features such as hysteresis or watchdog timer.

Working Principles

The MAX803SEXR+TG05 is designed to monitor the supply voltage of a microprocessor or other digital systems. It compares the supply voltage with the selected threshold voltage and generates a reset signal when the voltage falls below the threshold. The reset signal remains asserted until the supply voltage rises above the threshold and the reset timeout period elapses.

Detailed Application Field Plans

The MAX803SEXR+TG05 is commonly used in various applications, including but not limited to:

1. Battery-Powered Devices: Ensures proper operation by monitoring the battery voltage and initiating a reset if it drops below a critical level.
2. Microcontroller Systems: Provides a reliable reset function to prevent erratic behavior during power-up or voltage fluctuations.
3. Industrial Control Systems: Monitors the power supply to critical components, ensuring system stability and preventing data corruption.

Detailed and Complete Alternative Models

1. MAX809SEXR+TG05: Similar to MAX803SEXR+TG05, but with fixed threshold voltage options of 2.63V, 2.93V, 3.08V, and 4.38V.
2. MAX811SEXR+TG05: Voltage detector with an active-low reset output and fixed threshold voltage options of 2.63V, 2.93V, 3.08V, and 4.38V.
3. MAX810SEXR+TG05: Voltage detector with a push-pull reset output and fixed threshold voltage options of 2.63V, 2.93V, 3.08V, and 4.38V.

These alternative models offer similar functionality and can be considered based on specific application requirements.

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