MAX6721UTYHD3+ - English Editing Encyclopedia Entry

Product Overview

Category

MAX6721UTYHD3+ belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in electronic devices for voltage monitoring and reset functions.

Characteristics

• Voltage monitoring: MAX6721UTYHD3+ provides accurate monitoring of the power supply voltage.
• Reset function: It generates a reset signal when the voltage falls below a certain threshold.
• Low power consumption: The IC operates with low power consumption, making it suitable for battery-powered devices.
• Wide operating voltage range: It can operate within a wide range of input voltages.
• High accuracy: The IC offers high precision in voltage monitoring.

Package

MAX6721UTYHD3+ is available in a small SOT23-6 package.

Essence

The essence of MAX6721UTYHD3+ lies in its ability to monitor voltage levels and generate reset signals, ensuring reliable operation of electronic devices.

Packaging/Quantity

This IC is typically sold in reels containing a specific quantity, such as 3000 units per reel.

Specifications

• Supply voltage range: 1.6V to 5.5V
• Threshold voltage options: Various threshold voltage options are available, such as 2.63V, 2.93V, 3.08V, etc.
• Operating temperature range: -40°C to +85°C
• Quiescent current: Typically 3µA
• Reset timeout period: Configurable options, such as 140ms, 280ms, 560ms, etc.

Detailed Pin Configuration

MAX6721UTYHD3+ has the following pin configuration:

```

---

| | --| VDD | --| GND | --| MR | --| RESET | --| VOUT | |___________| ```

• VDD: Power supply input
• GND: Ground reference
• MR: Manual reset input (active-low)
• RESET: Reset output
• VOUT: Voltage monitor output

Functional Features

1. Voltage Monitoring: MAX6721UTYHD3+ continuously monitors the power supply voltage and compares it with a preset threshold.
2. Reset Generation: When the voltage falls below the threshold, the IC generates a reset signal to ensure proper device operation.
3. Manual Reset: The manual reset input allows for external control of the reset function.
4. Adjustable Timeout Period: The reset timeout period can be configured to meet specific application requirements.

Advantages and Disadvantages

Advantages

• Accurate voltage monitoring ensures reliable device operation.
• Low power consumption extends battery life in portable devices.
• Wide operating voltage range makes it compatible with various power sources.
• Small package size enables space-saving designs.
• Configurable reset timeout period enhances flexibility.

Disadvantages

• Limited threshold voltage options may not cover all voltage monitoring requirements.
• SOT23-6 package may require additional handling precautions during assembly.

Working Principles

MAX6721UTYHD3+ operates by comparing the power supply voltage with a preset threshold voltage. When the voltage drops below the threshold, the IC triggers the reset output, indicating a low-voltage condition. This reset signal can be used to initiate system recovery or perform other necessary actions. The manual reset input allows for external control of the reset function, providing flexibility in certain applications.

Detailed Application Field Plans

MAX6721UTYHD3+ finds applications in various electronic devices that require voltage monitoring and reset functionality. Some potential application fields include:

1. Microcontrollers: Ensuring stable operation by monitoring the power supply voltage and initiating a reset if necessary.
2. Industrial Control Systems: Preventing malfunctions by monitoring voltage levels in critical components and triggering a reset when needed.
3. Battery-Powered Devices: Extending battery life by accurately monitoring voltage and initiating power-saving measures or shutdown procedures.
4. Automotive Electronics: Ensuring reliable operation of vehicle systems by monitoring voltage levels and initiating appropriate actions in case of voltage fluctuations.

Detailed and Complete Alternative Models

1. MAX6715UTZHD3+: Similar to MAX6721UTYHD3+, but with different threshold voltage options.
2. MAX6730UTYHD3+: Offers additional features such as watchdog timer functionality.
3. MAX6801UR44D3+: Provides voltage monitoring and reset functions in a different package (SOT143-4).

These alternative models offer similar voltage monitoring and reset capabilities, catering to different application requirements.

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