MAX6821LUK+ - English Editing Encyclopedia Entry

Product Overview

Category

MAX6821LUK+ belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in electronic devices for voltage monitoring and power sequencing applications.

Characteristics

• Voltage monitoring: MAX6821LUK+ provides accurate monitoring of supply voltages.
• Power sequencing: It enables controlled power-up and power-down sequences in electronic systems.

Package

The MAX6821LUK+ comes in a small outline package (SOT-23) which is widely used for surface mount applications.

Essence

The essence of MAX6821LUK+ lies in its ability to ensure reliable voltage monitoring and controlled power sequencing, enhancing the overall performance and safety of electronic devices.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 3000 units per reel/tube.

Specifications

• Supply voltage range: 2.5V to 5.5V
• Operating temperature range: -40°C to +85°C
• Output type: Active-low push-pull
• Threshold voltage options: Various threshold voltage options available for different monitoring requirements

Detailed Pin Configuration

The MAX6821LUK+ has the following pin configuration:

1. GND: Ground connection
2. VCC: Positive supply voltage input
3. RESET#: Active-low reset output
4. MR#: Master reset input
5. TH#: Threshold voltage selection input

Functional Features

1. Accurate voltage monitoring: The MAX6821LUK+ ensures precise monitoring of supply voltages, preventing potential damage to electronic components.
2. Controlled power sequencing: It allows for controlled power-up and power-down sequences, ensuring proper initialization and shutdown of electronic systems.
3. Flexible threshold voltage selection: The TH# pin enables the selection of different threshold voltage options, providing versatility for various monitoring requirements.

Advantages and Disadvantages

Advantages

• Accurate voltage monitoring enhances system reliability.
• Controlled power sequencing prevents potential damage during power-up and power-down.
• Flexible threshold voltage selection caters to different monitoring needs.

Disadvantages

• Limited operating temperature range (-40°C to +85°C).
• Requires external components for complete functionality.

Working Principles

The MAX6821LUK+ operates by comparing the monitored voltage with a user-defined threshold voltage. When the monitored voltage falls below the threshold, the RESET# output is activated, indicating a low-voltage condition. The MR# input allows for a master reset, overriding the voltage monitoring function.

Detailed Application Field Plans

The MAX6821LUK+ finds applications in various electronic devices, including but not limited to: - Power supplies - Battery-powered systems - Industrial control systems - Consumer electronics - Automotive electronics

Detailed and Complete Alternative Models

1. MAX6822LUK+: Similar to MAX6821LUK+, but with additional features such as adjustable reset timeout and watchdog timer functionality.
2. MAX6819: Voltage monitor IC with integrated power-on reset and manual reset inputs.
3. MAX6384: Precision voltage reference with built-in reset circuitry.

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

In conclusion, the MAX6821LUK+ is an integrated circuit designed for accurate voltage monitoring and controlled power sequencing in electronic devices. Its compact package, flexible threshold voltage selection, and reliable performance make it suitable for a wide range of applications.