MIC812RU TR

Product Overview

• Category: Integrated Circuit
• Use: Power Management
• Characteristics: Low Voltage Reset Monitor
• Package: SOT-23-3
• Essence: Monitors power supply voltage and generates a reset signal when the voltage falls below a specified threshold.
• Packaging/Quantity: Tape & Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Reset Threshold Options: 2.63V, 2.93V, 3.08V, 4.38V
• Reset Timeout Period: 140ms (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MIC812RU TR has a SOT-23-3 package with the following pin configuration:

```

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| | --| RESET |-- --| GND |-- --| VCC |-- |_______| ```

Functional Features

• Monitors the power supply voltage continuously.
• Generates a reset signal when the voltage falls below the specified threshold.
• Provides a stable reset output during power-up and power-down sequences.
• Built-in hysteresis prevents false triggering due to voltage fluctuations.

Advantages

• Small form factor and low power consumption make it suitable for portable devices.
• Wide supply voltage range allows compatibility with various systems.
• Multiple reset threshold options provide flexibility in different applications.
• Reliable reset signal generation ensures proper system initialization.

Disadvantages

• Limited number of reset threshold options may not cater to all voltage requirements.
• Lack of adjustable timeout period may not suit certain applications.

Working Principles

The MIC812RU TR monitors the power supply voltage using an internal voltage reference and comparator circuit. When the voltage falls below the specified threshold, the reset output is activated. The reset signal remains active until the voltage rises above the threshold and a timeout period elapses.

Application Field Plans

The MIC812RU TR is commonly used in various electronic systems where reliable power supply monitoring and system initialization are critical. Some application fields include:

1. Microcontrollers and microprocessors
2. Embedded systems
3. Industrial control systems
4. Automotive electronics
5. Battery-powered devices

Alternative Models

• MIC803: Similar low voltage reset monitor with adjustable reset threshold and timeout options.
• MAX809: Low power microprocessor reset circuits with different package options.
• TC54: Voltage supervisor with adjustable reset threshold and manual reset input.

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