MCP111-290E/TO

Product Overview

Category

The MCP111-290E/TO belongs to the category of integrated circuits (ICs).

Use

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

Characteristics

• Voltage monitoring: The MCP111-290E/TO provides accurate monitoring of the power supply voltage.
• Reset function: It generates a reset signal when the monitored voltage falls below a specified threshold.
• Low power consumption: This IC operates with low power consumption, making it suitable for battery-powered applications.
• Wide operating voltage range: The MCP111-290E/TO can operate within a wide voltage range, enhancing its versatility.
• Small package size: It comes in a compact TO-92 package, allowing for easy integration into different circuit designs.

Package and Quantity

The MCP111-290E/TO is packaged in a TO-92 package. Each package contains one unit of the IC.

Specifications

• Supply Voltage Range: 1.8V to 5.5V
• Threshold Voltage Options: 2.93V, 3.08V, 3.63V, 4.38V, 4.63V
• Operating Temperature Range: -40°C to +125°C
• Quiescent Current: 1.0µA (typical)
• Reset Timeout Period: 140ms (typical)

Pin Configuration

The MCP111-290E/TO has three pins:

1. VDD: Power supply input pin.
2. GND: Ground reference pin.
3. RESET: Output pin that generates a reset signal when the monitored voltage falls below the threshold.

Functional Features

1. Voltage Monitoring: The MCP111-290E/TO continuously monitors the power supply voltage.
2. Reset Generation: When the monitored voltage drops below the specified threshold, the IC generates a reset signal.
3. Hysteresis: The device incorporates hysteresis to prevent false triggering due to voltage fluctuations near the threshold level.
4. Power-On Reset: It provides a power-on reset signal to ensure proper initialization of the system during power-up.

Advantages and Disadvantages

Advantages

• Accurate voltage monitoring ensures reliable operation of electronic devices.
• Low power consumption extends battery life in portable applications.
• Wide operating voltage range allows compatibility with various power supply configurations.
• Compact package size facilitates easy integration into circuit designs.

Disadvantages

• Limited threshold voltage options may restrict its suitability for certain applications requiring specific voltage levels.
• Lack of adjustable timeout period may not cater to all timing requirements.

Working Principles

The MCP111-290E/TO operates by comparing the input voltage with the internally set threshold voltage. When the input voltage falls below the threshold, the IC triggers the reset output, indicating a low-voltage condition. The reset signal remains active until the input voltage rises above the threshold, ensuring proper system recovery.

Detailed Application Field Plans

The MCP111-290E/TO finds applications in various fields, including:

1. Consumer Electronics: Used in power management circuits of smartphones, tablets, and other portable devices.
2. Industrial Automation: Employed in control systems to monitor power supply integrity and initiate system resets if necessary.
3. Automotive Electronics: Integrated into automotive modules to ensure stable voltage supply and facilitate system recovery after voltage dips or fluctuations.
4. Medical Devices: Utilized in medical equipment to monitor power supply reliability and trigger appropriate actions in case of voltage deviations.

Alternative Models

1. MCP111-195E/TO: Similar to MCP111-290E/TO but with different threshold voltage options.
2. MCP111-315E/TO: Offers additional features like adjustable timeout period and programmable threshold voltage.
3. MCP111-450E/TO: Designed for higher voltage applications with extended operating range.

These alternative models provide similar functionality but may offer additional features or cater to specific voltage requirements.

In conclusion, the MCP111-290E/TO is an integrated circuit used for voltage monitoring and reset functions. Its compact size, low power consumption, and wide operating voltage range make it suitable for various electronic applications. However, limited threshold voltage options and a fixed timeout period may restrict its applicability in certain scenarios. The IC operates by comparing the input voltage with a set threshold and generates a reset signal when necessary. It finds application in consumer electronics, industrial automation, automotive electronics, and medical devices. Alternative models with different features and voltage ranges are available to meet specific requirements.