MAX6721AUTMRD1+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Monitoring and Resetting
• Characteristics: Low-power, Precision, Programmable, Supervisory Circuits
• Package: 6-pin µDFN (2mm x 2mm)
• Essence: Provides voltage monitoring and resetting capabilities for various electronic systems.
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Reset Threshold Voltage Options: 1.575V, 1.8V, 2.32V, 2.63V, 3.08V, 4.38V, 4.63V
• Reset Timeout Period Options: 1.6ms, 10ms, 100ms, 1s, 10s, 100s
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX6721AUTMRD1+T has the following pin configuration:

```

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| | --| VCC | --| GND | --| MR | --| RESET | --| RESET_OUT | |___________| ```

• VCC: Power supply input pin
• GND: Ground reference pin
• MR: Manual reset input pin
• RESET: Active-low reset output pin
• RESET_OUT: Open-drain reset output pin

Functional Features

• Voltage Monitoring: Monitors the supply voltage and generates a reset signal when it falls below a specified threshold.
• Resetting: Resets the system when the monitored voltage drops below the threshold for a programmable timeout period.
• Manual Reset: Allows for manual resetting of the system using the MR pin.
• Open-Drain Output: Provides an open-drain reset output for compatibility with various microcontrollers and logic levels.
• Programmable Options: Offers multiple threshold voltage and timeout period options for flexibility in different applications.

Advantages and Disadvantages

Advantages: - Low-power consumption - Precision voltage monitoring - Programmable options for customization - Small package size for space-constrained designs - Open-drain output for versatile compatibility

Disadvantages: - Limited number of threshold voltage and timeout period options - Not suitable for high-voltage applications

Working Principles

The MAX6721AUTMRD1+T operates by continuously monitoring the supply voltage using an internal voltage reference. When the voltage falls below the programmed threshold, it triggers a reset signal. The reset signal remains active until the voltage rises above the threshold or the programmable timeout period elapses. The manual reset input allows for immediate system resetting if required.

Detailed Application Field Plans

The MAX6721AUTMRD1+T is commonly used in various electronic systems that require reliable voltage monitoring and resetting capabilities. Some application fields include:

1. Battery-Powered Devices: Ensures proper shutdown and system reset when the battery voltage drops below a critical level.
2. Microcontroller Systems: Protects against voltage fluctuations and provides a controlled reset during power-up or brownout conditions.
3. Industrial Control Systems: Monitors power supply integrity and resets the system in case of voltage anomalies to prevent data corruption or equipment damage.
4. Automotive Electronics: Safeguards sensitive components from voltage transients and ensures proper system operation under varying automotive conditions.

Detailed and Complete Alternative Models

1. MAX6715AUTZWD3+T: Similar voltage monitoring and resetting IC with additional watchdog timer functionality.
2. MAX6736XKSHD3+T: Voltage monitoring and resetting IC with adjustable threshold voltage and timeout period options.
3. MAX6818EAP+: Programmable voltage detector with integrated push-pull output for driving external loads.

These alternative models offer similar functionality to the MAX6721AUTMRD1+T but may have different features or specifications that cater to specific application requirements.

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