MIC812TU TR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: Low-power, Reset Output, Adjustable Threshold Voltage
• Package: SOT-23-3
• Essence: Monolithic CMOS IC
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Reset Threshold Voltage Options: 2.63V, 2.93V, 3.08V, 4.38V
• Reset Timeout Period: 140ms (typical)
• Quiescent Current: 1µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MIC812TU TR features a SOT-23-3 package with the following pin configuration:

• Pin 1: GND (Ground)
• Pin 2: VCC (Supply Voltage)
• Pin 3: RESET (Reset Output)

Functional Features

• Voltage Supervision: Monitors the supply voltage and provides a reset signal when it falls below the threshold voltage.
• Adjustable Threshold Voltage: The reset threshold voltage can be selected from multiple options to suit different applications.
• Reset Output: Provides an active-low reset signal to the system when the supply voltage is below the threshold.
• Power-On Reset Delay: Ensures a stable reset output during power-up.

Advantages and Disadvantages

Advantages: - Low-power consumption - Adjustable threshold voltage for flexibility - Small package size for space-constrained designs

Disadvantages: - Limited reset timeout period - Single-channel voltage supervision

Working Principles

The MIC812TU TR operates by continuously monitoring the supply voltage. When the voltage falls below the selected threshold voltage, the reset output is activated, indicating a power failure or voltage drop. The reset output remains active until the supply voltage rises above the threshold and the reset timeout period elapses.

Detailed Application Field Plans

The MIC812TU TR is commonly used in various applications where reliable voltage supervision is required. Some of the typical application fields include:

1. Microcontrollers: Ensuring proper system initialization and preventing data corruption during power fluctuations.
2. Embedded Systems: Providing a reset signal to restart the system after a power failure.
3. Battery-Powered Devices: Monitoring battery voltage to prevent deep discharge and protect sensitive components.
4. Industrial Control Systems: Ensuring stable operation by detecting power supply abnormalities.
5. Automotive Electronics: Protecting critical systems from voltage drops and ensuring safe operation.

Detailed and Complete Alternative Models

1. MAX809: Similar voltage supervisor IC with adjustable threshold voltage and different package options.
2. TL7705: Voltage supervisor IC with fixed threshold voltage and additional features like watchdog timer.
3. ADM6315: Low-power voltage monitor IC with adjustable threshold voltage and wide operating temperature range.

These alternative models offer similar functionality to the MIC812TU TR and can be considered based on specific requirements and design constraints.

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