MAX6821YUK+ - English Editing Encyclopedia Entry

Product Overview

Category

MAX6821YUK+ belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in electronic devices for voltage monitoring and power supply sequencing.

Characteristics

• Voltage monitoring: MAX6821YUK+ provides accurate monitoring of input voltages.
• Power supply sequencing: It ensures proper power-up and power-down sequencing in electronic systems.

Package

The MAX6821YUK+ comes in a small SOT23-5 package.

Essence

The essence of MAX6821YUK+ lies in its ability to monitor and control voltage levels, ensuring reliable operation of electronic devices.

Packaging/Quantity

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

Specifications

• Input voltage range: 2.5V to 5.5V
• Operating temperature range: -40°C to +85°C
• Output type: Active-low push-pull
• Quiescent current: 10µA (typical)
• Threshold accuracy: ±1.5%
• Power-on reset timeout: 140ms (typical)

Detailed Pin Configuration

The MAX6821YUK+ has five pins arranged as follows:

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Pin 1: GND (Ground) Pin 2: VCC (Power Supply) Pin 3: RESET (Active-Low Reset Output) Pin 4: MR (Manual Reset Input) Pin 5: TH (Threshold Voltage Input)

Functional Features

1. Voltage Monitoring: The MAX6821YUK+ accurately monitors the input voltage and generates a reset signal when it falls below a specified threshold.
2. Power Sequencing: It ensures proper power-up and power-down sequencing, preventing potential damage to electronic components.
3. Manual Reset: The MR pin allows for manual reset control, enabling system recovery in case of a fault or error.

Advantages and Disadvantages

Advantages

• Accurate voltage monitoring ensures reliable operation of electronic devices.
• Power sequencing feature protects sensitive components during power-up and power-down.
• Manual reset capability provides flexibility in system recovery.

Disadvantages

• Limited input voltage range (2.5V to 5.5V).
• Requires external components for complete functionality.

Working Principles

The MAX6821YUK+ operates by continuously monitoring the input voltage using the TH pin. When the voltage falls below the specified threshold, it generates an active-low reset signal on the RESET pin. This signal can be used to initiate system recovery or perform other necessary actions.

Detailed Application Field Plans

The MAX6821YUK+ finds applications in various electronic systems, including: - Microcontrollers and microprocessors - Power management units - Industrial automation equipment - Consumer electronics - Automotive electronics

Detailed and Complete Alternative Models

1. MAX6822YUK+: Similar to MAX6821YUK+, but with a different threshold voltage range.
2. MAX6823YUK+: Provides additional features such as adjustable reset timeout and watchdog timer.
3. MAX6824YUK+: Offers multiple voltage monitoring channels for complex systems.

These alternative models provide similar functionality to the MAX6821YUK+ but may have different specifications or additional features.

In conclusion, the MAX6821YUK+ is an integrated circuit designed for voltage monitoring and power supply sequencing in electronic devices. Its accurate monitoring, power sequencing capabilities, and manual reset option make it suitable for various applications. However, it has limitations in terms of input voltage range and requires external components for complete functionality. Alternative models with different specifications and features are available to cater to specific requirements.