MCP1322T-31LE/OT

Product Overview

Category

The MCP1322T-31LE/OT belongs to the category of voltage supervisors.

Use

It is primarily used for monitoring and controlling the voltage levels in electronic circuits.

Characteristics

• Voltage range: 1.8V to 5.5V
• Low quiescent current: 1.6µA (typical)
• Adjustable reset threshold voltage
• Active-low reset output
• Small package size: SOT-23-3
• RoHS compliant

Package

The MCP1322T-31LE/OT is packaged in a small SOT-23-3 package, which makes it suitable for space-constrained applications.

Essence

The essence of the MCP1322T-31LE/OT is its ability to monitor and control voltage levels, ensuring stable operation of electronic circuits.

Packaging/Quantity

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

Specifications

• Supply Voltage Range: 1.8V to 5.5V
• Reset Threshold Voltage Range: 2.93V to 4.63V
• Quiescent Current: 1.6µA (typical), 3.5µA (maximum)
• Reset Timeout Period: 140ms (typical), 280ms (maximum)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MCP1322T-31LE/OT has three pins:

1. VDD: Power supply input pin.
2. GND: Ground reference pin.
3. RESET: Active-low reset output pin.

Functional Features

• Voltage Monitoring: The MCP1322T-31LE/OT continuously monitors the input voltage and generates a reset signal when it falls below the threshold voltage.
• Adjustable Threshold: The reset threshold voltage can be adjusted within a specified range to suit different application requirements.
• Active-Low Reset Output: The reset output is active-low, indicating a reset condition when pulled low.
• Low Quiescent Current: The device consumes very low quiescent current, minimizing power consumption in battery-powered applications.

Advantages and Disadvantages

Advantages

• Wide supply voltage range allows compatibility with various systems.
• Adjustable reset threshold provides flexibility for different voltage monitoring needs.
• Small package size enables usage in space-constrained designs.
• Low quiescent current ensures minimal power consumption.

Disadvantages

• Lack of adjustable reset timeout period.
• Limited operating temperature range may restrict certain applications.

Working Principles

The MCP1322T-31LE/OT operates by continuously monitoring the input voltage using an internal voltage reference. When the voltage falls below the set threshold, the device generates an active-low reset signal. This signal can be used to initiate system resets or trigger other actions based on the specific application requirements.

Detailed Application Field Plans

The MCP1322T-31LE/OT finds applications in various fields, including:

1. Battery-Powered Devices: It ensures proper voltage monitoring and control in portable electronic devices, extending battery life.
2. Industrial Control Systems: It provides reliable voltage supervision in industrial control systems, preventing malfunctions due to voltage fluctuations.
3. Automotive Electronics: It helps maintain stable voltage levels in automotive electronics, ensuring proper operation of critical systems.
4. Home Automation: It assists in voltage monitoring and protection in home automation systems, enhancing overall system reliability.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the MCP1322T-31LE/OT include:

1. MAX809: Voltage Supervisors with Adjustable Reset Threshold.
2. TPS3839: Microprocessor Supervisory Circuits with Adjustable Reset Timeout.
3. ADM6315: Precision Voltage Monitors with Adjustable Threshold.

These alternative models provide comparable features and can be considered as substitutes based on specific application requirements.

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