MAX803TEXR+TG077

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Detector
• Characteristics: Low-power, microprocessor reset circuit
• Package: SOT-23-3
• Essence: Monitors power supply voltage and generates a reset signal when the voltage drops below a specified threshold.
• 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: 140ms, 280ms, 560ms, 1120ms
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX803TEXR+TG077 has three pins:

1. GND: Ground connection.
2. RESET: Output pin that provides a reset signal to the microprocessor when the supply voltage drops below the threshold.
3. VCC: Power supply input.

Functional Features

• Monitors the supply voltage continuously.
• Generates a reset signal when the voltage drops below the specified threshold.
• Provides a stable reset output during power-up and power-down conditions.
• Low quiescent current consumption of only 1µA.
• Built-in glitch immunity ensures reliable operation in noisy environments.

Advantages and Disadvantages

Advantages: - Low-power consumption makes it suitable for battery-powered applications. - Small package size allows for space-saving designs. - Wide operating voltage range enables compatibility with various systems. - Glitch immunity ensures reliable performance in noisy environments.

Disadvantages: - Limited reset threshold voltage and timeout period options. - Not suitable for applications requiring precise voltage monitoring.

Working Principles

The MAX803TEXR+TG077 operates by comparing the supply voltage with a fixed threshold voltage. When the supply voltage drops below the threshold, the internal circuitry generates a reset signal. This signal remains active until the supply voltage rises above the threshold and a specified timeout period elapses.

Detailed Application Field Plans

The MAX803TEXR+TG077 is commonly used in various electronic systems where reliable power supply monitoring is crucial. Some application fields include:

1. Microcontroller-based systems
2. Embedded systems
3. Industrial control systems
4. Automotive electronics
5. Portable devices

Detailed and Complete Alternative Models

1. MAX809: Similar voltage detector IC with adjustable reset threshold and timeout options.
2. MAX811: Voltage detector IC with manual reset input and adjustable reset threshold.
3. MAX803L: Low-power voltage detector IC with fixed reset threshold and longer timeout period.

These alternative models offer different features and specifications to cater to specific application requirements.

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