MIC811SUY-TR

Product Overview

Category

The MIC811SUY-TR belongs to the category of integrated circuits (ICs).

Use

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

Characteristics

• Voltage monitoring: The MIC811SUY-TR is designed to monitor the supply voltage and provide a reset signal when it falls below a specified threshold.
• Reset function: It ensures that the microcontroller or other digital circuitry starts operating correctly after power-up or a voltage drop.

Package

The MIC811SUY-TR is available in a small SOT-23-3 package, which is widely used for surface mount applications.

Essence

The essence of this product lies in its ability to provide reliable voltage monitoring and reset functionality, ensuring proper operation of electronic devices.

Packaging/Quantity

The MIC811SUY-TR is typically packaged in reels containing 3000 units. This packaging format is suitable for automated assembly processes.

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Reset Threshold Voltage Options: 2.63V, 2.93V, 3.08V, 4.38V, and 4.63V
• Reset Timeout Period Options: 140ms, 280ms, 560ms, and 1120ms
• Quiescent Current: 10µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MIC811SUY-TR has three pins:

1. VDD: Connect this pin to the positive supply voltage.
2. GND: Connect this pin to the ground reference.
3. RESET: This pin outputs a reset signal when the supply voltage falls below the specified threshold.

Functional Features

• Accurate voltage monitoring: The MIC811SUY-TR ensures precise monitoring of the supply voltage, preventing erratic behavior caused by low voltages.
• Adjustable reset threshold: The product offers multiple options for setting the reset threshold voltage, allowing flexibility in different applications.
• Programmable reset timeout: The reset timeout period can be configured to suit specific system requirements.
• Low quiescent current: With a typical quiescent current of only 10µA, the MIC811SUY-TR minimizes power consumption.

Advantages and Disadvantages

Advantages

• Reliable voltage monitoring and reset functionality.
• Wide supply voltage range allows compatibility with various systems.
• Small package size enables space-saving designs.
• Low quiescent current reduces power consumption.

Disadvantages

• Limited reset threshold voltage and timeout period options.
• Not suitable for high-voltage applications.

Working Principles

The MIC811SUY-TR operates based on a voltage comparator that continuously monitors the supply voltage. When the voltage falls below the programmed threshold, the reset pin is activated, generating a reset signal. This signal remains active until the supply voltage rises above the threshold or the reset timeout period elapses.

Detailed Application Field Plans

The MIC811SUY-TR finds applications in various electronic devices where reliable voltage monitoring and reset functionality are crucial. Some common application fields include:

1. Microcontrollers: Ensures proper initialization and operation after power-up or voltage drop.
2. Embedded Systems: Provides a reset signal to ensure stable operation during power fluctuations.
3. Industrial Control Systems: Monitors supply voltage to prevent malfunctions and ensure system reliability.
4. Automotive Electronics: Facilitates safe startup and operation of critical components.

Detailed and Complete Alternative Models

1. MAX811: A similar voltage monitor and reset IC offered by Maxim Integrated.
2. ADM708: Another alternative from Analog Devices, providing voltage monitoring and reset functions.
3. TPS3808: A Texas Instruments product with adjustable threshold voltage and timeout period.

These alternative models offer similar features and can be considered as substitutes for the MIC811SUY-TR in various applications.

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