MIC8115TU TR

Product Overview

• Category: Integrated Circuit
• Use: Voltage Supervisor
• Characteristics: Low-power, Reset Output, Manual Reset Input
• 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 Options: 140ms, 280ms, 560ms, 1120ms
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MIC8115TU TR has a SOT-23-3 package with the following pin configuration:

```

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

Functional Features

• Voltage supervisor with manual reset input
• Monitors the power supply voltage and asserts reset when it falls below the threshold
• Provides a reset output signal to the system microcontroller or other devices
• Manual reset input allows for external reset control
• Low-power consumption for battery-powered applications

Advantages and Disadvantages

Advantages: - Small package size enables space-saving designs - Wide supply voltage range allows for flexibility in different applications - Multiple reset threshold and timeout options provide customization - Low-power operation extends battery life

Disadvantages: - Limited number of available reset threshold and timeout combinations - Lack of additional features such as watchdog timer or power-on reset delay

Working Principles

The MIC8115TU TR is designed to monitor the power supply voltage and assert a reset signal when it falls below a certain threshold. It operates by comparing the supply voltage with an internal reference voltage. When the supply voltage drops below the threshold, the reset output is asserted low. The reset signal remains active until the supply voltage rises above the threshold and a timeout period elapses.

The manual reset input allows for external control of the reset signal. When the manual reset input is asserted low, the reset output is immediately forced low, regardless of the supply voltage level.

Detailed Application Field Plans

The MIC8115TU TR is commonly used in various applications where reliable power supply monitoring and system reset functionality are required. Some typical application fields include:

1. Microcontroller Systems: Provides a reset signal to microcontrollers upon power-up or voltage drop, ensuring proper initialization and preventing erratic behavior.
2. Industrial Control Systems: Monitors power supply voltage in industrial equipment to ensure safe operation and prevent damage due to voltage fluctuations.
3. Automotive Electronics: Used in automotive systems to monitor battery voltage and initiate a reset if the voltage drops below a critical level, protecting sensitive electronics.
4. Battery-Powered Devices: Enables efficient power management in portable devices by initiating a reset or shutdown when the battery voltage reaches a low level, preventing data loss or system malfunction.

Detailed and Complete Alternative Models

• MAX811: Voltage supervisor IC with similar features and package options.
• ADM811: Low-power microprocessor supervisory circuit with adjustable reset threshold and timeout options.
• TPS3808: Precision voltage supervisor with programmable delay time and manual reset input.

These alternative models offer similar functionality and can be considered as alternatives to the MIC8115TU TR based on specific application requirements.

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