MAX8211CUA+ - English Editing Encyclopedia Entry

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Monitor and Reset Circuit
• Characteristics: High accuracy, low power consumption, small package size
• Package: 8-pin µMAX® package
• Essence: Provides voltage monitoring and reset functions for electronic systems
• Packaging/Quantity: Available in tape and reel packaging, quantity varies based on supplier

Specifications

• Supply Voltage Range: 1.2V to 5.5V
• Threshold Voltage Options: 2.93V, 3.08V, 3.63V, 4.38V, 4.63V, 4.88V
• Operating Temperature Range: -40°C to +85°C
• Reset Timeout Period: Adjustable from 1ms to 640ms
• Quiescent Current: 6µA (typical)

Pin Configuration

The MAX8211CUA+ has the following pin configuration:

```

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| | --| VCC GND |-- Pin 1: Ground (GND) --| MR RST |-- Pin 2: Manual Reset Input (MR) --| RESET OUT |-- Pin 3: Reset Output (RESET OUT) --| THRESHOLD |-- Pin 4: Threshold Voltage Selection (THRESHOLD) --| | |___________| ```

Functional Features

• Monitors the supply voltage and generates a reset signal when it falls below a specified threshold.
• Provides manual reset capability through the MR pin.
• Offers adjustable reset timeout period to accommodate different system requirements.
• Low quiescent current ensures minimal power consumption.

Advantages

• High accuracy in voltage monitoring ensures reliable system operation.
• Low power consumption helps in energy-efficient designs.
• Small package size allows for space-saving integration into electronic systems.
• Adjustable reset timeout period provides flexibility for various applications.

Disadvantages

• Limited threshold voltage options may not cater to all voltage monitoring requirements.
• The 8-pin package may not be suitable for applications with a high pin count.

Working Principles

The MAX8211CUA+ operates by continuously monitoring the supply voltage. When the voltage falls below the selected threshold voltage, the circuit generates a reset signal on the RESET OUT pin. This signal can be used to reset microcontrollers or other digital circuits. The manual reset input (MR) allows for an external reset command. The reset timeout period can be adjusted using external components to meet specific system requirements.

Application Field Plans

The MAX8211CUA+ finds applications in various fields, including: 1. Battery-powered devices: Ensures proper functioning and prevents damage due to low battery voltage. 2. Industrial control systems: Provides reliable reset functionality for critical processes. 3. Automotive electronics: Monitors voltage levels to prevent malfunctions and ensure safety. 4. Home automation: Enables automatic reset and recovery in case of power fluctuations. 5. Medical equipment: Ensures continuous operation and patient safety by monitoring power supply voltage.

Alternative Models

Other alternative models that offer similar functionality to the MAX8211CUA+ include: - MAX823: Offers additional features like watchdog timer and power-fail detection. - MAX809: Provides fixed threshold voltage options and adjustable reset timeout period. - LTC2937: Includes multiple voltage monitors and programmable reset delay.

In conclusion, the MAX8211CUA+ is a voltage monitor and reset circuit IC that offers high accuracy, low power consumption, and small package size. It provides essential functions for monitoring and resetting electronic systems, making it suitable for various applications across different industries.

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