MCP131T-300E/LB

Product Overview

Category

The MCP131T-300E/LB belongs to the category of voltage supervisors.

Use

It is primarily used for monitoring and controlling the power supply voltage in electronic systems.

Characteristics

• The MCP131T-300E/LB is a low-power, high-accuracy voltage supervisor.
• It operates over a wide voltage range, making it suitable for various applications.
• This device provides a reset signal when the monitored voltage falls below a specified threshold.
• It offers a programmable delay time to ensure stable operation during power-up or power-down sequences.

Package

The MCP131T-300E/LB is available in a small SOT-23 package, which is widely used in the electronics industry.

Essence

The essence of the MCP131T-300E/LB lies in its ability to monitor and control the power supply voltage, ensuring reliable operation of electronic systems.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 3000 units per reel/tube.

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Reset Threshold Voltage Options: 2.63V, 3.00V, 4.38V, and 4.63V
• Reset Timeout Period Options: 140ms, 560ms, 1120ms, and 2240ms
• Operating Temperature Range: -40°C to +125°C
• Quiescent Current: 1.5µA (typical)

Detailed Pin Configuration

The MCP131T-300E/LB has three pins:

1. VDD: Connect this pin to the positive supply voltage.
2. GND: Connect this pin to the ground reference.
3. RESET: This pin outputs a reset signal when the monitored voltage falls below the specified threshold.

Functional Features

• Accurate Voltage Monitoring: The MCP131T-300E/LB ensures precise monitoring of the power supply voltage, preventing system malfunctions.
• Programmable Delay Time: The device allows users to set a delay time, ensuring stable operation during power-up or power-down sequences.
• Low Power Consumption: With a quiescent current of only 1.5µA, this voltage supervisor minimizes power consumption in electronic systems.

Advantages and Disadvantages

Advantages

• Wide operating voltage range enables compatibility with various applications.
• Small package size facilitates integration into space-constrained designs.
• Accurate voltage monitoring enhances system reliability.
• Low power consumption prolongs battery life in portable devices.

Disadvantages

• Limited reset threshold voltage options may not suit all voltage monitoring requirements.
• Lack of adjustable timeout period limits flexibility in certain applications.

Working Principles

The MCP131T-300E/LB operates by comparing the supply voltage with a preset threshold. When the voltage drops below the threshold, the RESET pin is activated, generating a reset signal. This signal can be used to initiate system resets or trigger specific actions to ensure proper functioning.

Detailed Application Field Plans

The MCP131T-300E/LB finds applications in various fields, including:

1. Embedded Systems: It provides reliable voltage monitoring for microcontrollers, ensuring stable operation.
2. Industrial Automation: The device helps prevent damage to sensitive equipment by monitoring power supply voltages.
3. Automotive Electronics: It ensures the integrity of critical systems by monitoring voltage levels in automotive applications.
4. Consumer Electronics: The MCP131T-300E/LB enhances the reliability of electronic devices such as smartphones, tablets, and wearables.

Detailed and Complete Alternative Models

1. MCP130T-270I/TT: Similar to the MCP131T-300E/LB, this model offers a different reset threshold voltage option (2.70V) and timeout period options.
2. MAX809: A voltage supervisor from Maxim Integrated, providing comparable features and performance.
3. TPS3808: Texas Instruments' voltage supervisor with adjustable threshold voltage and timeout period options.

These alternative models offer similar functionality to the MCP131T-300E/LB and can be considered based on specific application requirements.

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