MAX804REPA+ - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuits (ICs)

Use: The MAX804REPA+ is a voltage detector and reset circuit IC. It is designed to monitor the power supply voltage of electronic devices and provide a reset signal when the voltage falls below a certain threshold.

Characteristics: - Low power consumption - Wide operating voltage range - Adjustable reset threshold - Small package size - High accuracy

Package: The MAX804REPA+ is available in a small 8-pin plastic package.

Essence: This IC plays a crucial role in ensuring the reliable operation of electronic devices by monitoring the power supply voltage and initiating a reset when necessary.

Packaging/Quantity: The MAX804REPA+ is typically sold in reels containing 250 units.

Specifications

• Supply Voltage Range: 1.0V to 5.5V
• Reset Threshold Voltage Options: Adjustable from 1.2V to 4.63V
• Reset Timeout Period: Fixed at 140ms
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 3µA (typical)

Pin Configuration

The MAX804REPA+ features an 8-pin package with the following pin configuration:

1. GND (Ground)
2. VCC (Supply Voltage)
3. MR (Manual Reset Input)
4. RESET (Reset Output)
5. TH (Threshold Voltage Adjust)
6. CT (Capacitor Connection)
7. NC (No Connection)
8. NC (No Connection)

Functional Features

• Voltage Monitoring: The MAX804REPA+ continuously monitors the supply voltage.
• Reset Generation: When the supply voltage drops below the set threshold, the IC generates a reset signal.
• Adjustable Threshold: The threshold voltage can be adjusted to suit specific application requirements.
• Manual Reset: The IC provides a manual reset input for immediate system reset.
• Reset Timeout: The reset signal remains active for a fixed period of 140ms after the supply voltage rises above the threshold.

Advantages and Disadvantages

Advantages: - Low power consumption ensures minimal impact on overall system energy efficiency. - Wide operating voltage range makes it compatible with various power supply configurations. - Adjustable reset threshold allows customization for different voltage levels. - Small package size enables space-saving integration into compact electronic devices. - High accuracy ensures reliable voltage monitoring and reset functionality.

Disadvantages: - Fixed reset timeout period may not be suitable for all applications requiring longer or shorter reset durations. - Limited number of pins restricts the availability of additional features or functionalities.

Working Principles

The MAX804REPA+ operates by comparing the supply voltage with the set threshold voltage. When the supply voltage falls below the threshold, the IC triggers a reset signal. This signal remains active for a fixed duration of 140ms after the supply voltage rises above the threshold. The threshold voltage can be adjusted using an external resistor connected to the TH pin.

Detailed Application Field Plans

The MAX804REPA+ finds applications in various electronic devices where reliable voltage monitoring and reset functionality are essential. Some potential application fields include: 1. Microcontrollers and microprocessors 2. Embedded systems 3. Power management circuits 4. Industrial control systems 5. Automotive electronics 6. Battery-powered devices

Detailed and Complete Alternative Models

1. MAX803REXK+ - Similar voltage detector and reset circuit IC with adjustable threshold and push-pull output.
2. MAX809REUR+ - Voltage monitor and reset circuit IC with fixed threshold and open-drain output.
3. MAX811SEUS+ - Supervisor circuit IC with adjustable threshold, manual reset input, and watchdog timer functionality.

These alternative models offer similar features and can be considered as substitutes for the MAX804REPA+ depending on specific application requirements.

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