MCP112T-290E/MB

Product Overview

The MCP112T-290E/MB belongs to the category of voltage supervisors and is commonly used in electronic devices to monitor the power supply voltage. This device exhibits characteristics such as low power consumption, small package size, and high accuracy. It is typically packaged in a small outline transistor (SOT-23) package and is available in quantities suitable for both prototype and production applications.

Specifications

• Input Voltage Range: 0.7V to 5.5V
• Threshold Voltage: 2.9V
• Operating Temperature Range: -40°C to 125°C
• Quiescent Current: 5µA (typical)

Detailed Pin Configuration

The MCP112T-290E/MB features a standard SOT-23 package with three pins: 1. VDD: Power supply input 2. GND: Ground connection 3. RESET: Output signal indicating the status of the monitored voltage

Functional Features

• Under-Voltage Monitoring: Monitors the input voltage and asserts the reset signal when the voltage falls below the threshold.
• Manual Reset Input: Allows external control of the reset function.
• Low Power Consumption: Consumes minimal power, making it suitable for battery-powered applications.

Advantages and Disadvantages

Advantages

• Small Package Size: Enables integration into space-constrained designs.
• Wide Input Voltage Range: Suitable for various power supply configurations.
• Low Quiescent Current: Minimizes power consumption in standby mode.

Disadvantages

• Fixed Threshold Voltage: Not adjustable to different voltage levels.
• Limited Reset Options: May not offer advanced reset functionalities required in some applications.

Working Principles

The MCP112T-290E/MB operates by comparing the input voltage with the preset threshold voltage. When the input voltage drops below the threshold, the reset output is asserted, indicating a potential power supply issue. The device continuously monitors the voltage, providing a reliable indication of the power supply status.

Detailed Application Field Plans

The MCP112T-290E/MB finds extensive application in various electronic systems, including: - Battery-Powered Devices: Ensures proper operation by monitoring the battery voltage. - Embedded Systems: Provides a fail-safe mechanism to prevent erratic behavior during voltage fluctuations. - Industrial Control Systems: Enhances system reliability by monitoring critical power supply voltages.

Detailed and Complete Alternative Models

• MCP100: Offers adjustable threshold voltage for greater flexibility.
• MAX16050: Provides additional features such as watchdog timer functionality.

In conclusion, the MCP112T-290E/MB is a reliable voltage supervisor with essential features for ensuring stable operation in diverse electronic applications.

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