MCP130T-485I/SN

Product Overview

Category

The MCP130T-485I/SN 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 MCP130T-485I/SN is designed to monitor the supply voltage and provide a reset signal when it falls below a specified threshold.
• Reset function: It ensures that the microcontroller or other digital circuitry starts operating correctly after power-up or a brownout condition.
• Low power consumption: The IC operates with low quiescent current, making it suitable for battery-powered applications.
• Wide operating voltage range: It can operate within a wide range of supply voltages, typically from 1.6V to 5.5V.
• Small package size: The MCP130T-485I/SN is available in a small SOT-23 package, which makes it suitable for space-constrained designs.

Package and Quantity

The MCP130T-485I/SN is packaged in a SOT-23 package. It is typically sold in reels containing a quantity of 3000 units.

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Threshold Voltage Options: 2.63V, 2.93V, 3.08V, 4.38V, 4.63V
• Reset Timeout Period: 140ms, 560ms, 1120ms, 2240ms
• Quiescent Current: 1.6µA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MCP130T-485I/SN has three pins:

1. VDD: This pin is connected to the positive supply voltage.
2. GND: This pin is connected to the ground or negative supply voltage.
3. RESET: This pin outputs a reset signal when the supply voltage falls below the threshold.

Functional Features

• Voltage Monitoring: The MCP130T-485I/SN continuously monitors the supply voltage and compares it with the preset threshold voltage.
• Reset Signal Generation: When the supply voltage drops below the threshold, the IC asserts the RESET pin, generating a reset signal.
• Reset Timeout: The IC includes an internal timer that ensures the reset signal remains active for a specific period, allowing the system to stabilize before normal operation resumes.
• Manual Reset Input: The MCP130T-485I/SN also provides an optional manual reset input, allowing external control of the reset function.

Advantages and Disadvantages

Advantages

• Reliable voltage monitoring and reset functionality.
• Low power consumption, suitable for battery-powered applications.
• Wide operating voltage range accommodates various supply voltages.
• Small package size enables space-constrained designs.

Disadvantages

• Limited threshold voltage options may not cover all application requirements.
• Lack of adjustable timeout period limits flexibility in certain scenarios.

Working Principles

The MCP130T-485I/SN operates by comparing the supply voltage with the preset threshold voltage. When the supply voltage drops below the threshold, the IC generates a reset signal. The internal timer ensures that the reset signal remains active for a specific period, allowing the system to stabilize before normal operation resumes.

Application Field Plans

The MCP130T-485I/SN finds applications in various electronic devices where voltage monitoring and reset functions are crucial. Some potential application fields include:

1. Microcontrollers: Ensuring proper initialization and reliable operation after power-up or brownout conditions.
2. Embedded Systems: Providing a reset signal to ensure correct functioning of digital circuitry.
3. Battery-Powered Devices: Monitoring the supply voltage to prevent unexpected shutdowns and ensure efficient power management.
4. Industrial Control Systems: Maintaining system integrity by resetting microcontrollers or other critical components during voltage fluctuations.

Alternative Models

1. MCP130-300I/TO: Similar functionality with a different threshold voltage range.
2. MCP1316T-29LE/OT: Offers adjustable timeout period for increased flexibility.
3. MAX809RTRG: Alternative IC with comparable features and performance.

Note: This is not an exhaustive list, and there are several alternative models available in the market.

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