MIC1832M-TR

Product Overview

Category

The MIC1832M-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 MIC1832M-TR is designed to monitor the voltage level of a power supply and provide a reset signal when the voltage falls below a certain threshold.
• Reset function: It ensures that the microcontroller or other digital circuitry is properly reset when the power supply voltage drops below the specified level.
• Low power consumption: The MIC1832M-TR operates with low power consumption, making it suitable for battery-powered applications.
• Wide operating voltage range: It can operate within a wide range of input voltages, typically from 1.8V to 5.5V.
• Small package size: The MIC1832M-TR is available in a compact SOT-23 package, which makes it suitable for space-constrained designs.

Package and Quantity

The MIC1832M-TR is packaged in a SOT-23 package. It is typically sold in reels containing a quantity of 3000 units per reel.

Specifications

• Supply voltage range: 1.8V to 5.5V
• Threshold voltage options: Various threshold voltage options are available, such as 2.5V, 3.0V, 3.3V, etc.
• Reset timeout period: The reset signal remains active for a fixed duration after the voltage rises above the threshold.
• Operating temperature range: -40°C to +85°C

Pin Configuration

The MIC1832M-TR has the following pin configuration:

```

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| | --| VCC GND |-- Pin 1: Ground (GND) --| MR RST |-- Pin 2: Reset Output (RST) --| VIN VCC |-- Pin 3: Supply Voltage (VCC) |___________| ```

Functional Features

• Undervoltage detection: The MIC1832M-TR continuously monitors the input voltage and detects when it falls below the specified threshold.
• Reset signal generation: When the voltage drops below the threshold, the MIC1832M-TR generates a reset signal to ensure proper initialization of the connected digital circuitry.
• Fixed timeout period: The reset signal remains active for a fixed duration after the voltage rises above the threshold, allowing sufficient time for stable power supply recovery.

Advantages and Disadvantages

Advantages

• Reliable voltage monitoring and reset functionality.
• Low power consumption, suitable for battery-powered applications.
• Wide operating voltage range provides flexibility in various power supply scenarios.
• Compact package size allows for space-efficient designs.

Disadvantages

• Limited threshold voltage options may not cover all specific requirements.
• Fixed timeout period may not be adjustable for certain applications.

Working Principles

The MIC1832M-TR operates by comparing the input voltage (VIN) with the internally set threshold voltage. When the input voltage drops below the threshold, the internal circuitry triggers the reset output (RST) to go low, indicating a reset condition. The reset signal remains active for a fixed duration after the voltage rises above the threshold, ensuring proper initialization of the connected digital circuitry.

Application Field Plans

The MIC1832M-TR finds application in various electronic devices where voltage monitoring and reset functions are crucial. Some potential application fields include:

1. Microcontroller-based systems: Ensures reliable reset functionality during power supply fluctuations, preventing erratic behavior or data corruption.
2. Battery-powered devices: Monitors battery voltage to prevent deep discharge and provide a reset signal when necessary.
3. Industrial control systems: Ensures proper initialization of critical digital circuitry during power-up or voltage drops, enhancing system reliability.
4. Automotive electronics: Monitors vehicle battery voltage and provides a reset signal to ensure proper operation of electronic control units (ECUs) and other components.

Alternative Models

1. MIC1831M-TR: Similar to MIC1832M-TR but with adjustable timeout period.
2. MAX823R: Voltage monitor and reset IC with additional features like manual reset input and watchdog timer.
3. LTC2910: Precision voltage monitor with adjustable threshold and programmable delay.

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

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