MCP121T-270E/TT

Product Overview

Category

The MCP121T-270E/TT 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: 2.7V to 5.5V
• Low Quiescent Current: 1.6µA (typical)
• Precision Voltage Threshold: ±1.5%
• Power-On Reset Delay: 100ms (typical)
• Active-High or Active-Low Reset Output Options
• Small Package Size: SOT-23-3
• RoHS Compliant

Package

The MCP121T-270E/TT is packaged in a small SOT-23-3 package, which is suitable for space-constrained applications.

Essence

The essence of the MCP121T-270E/TT is its ability to monitor the voltage level and provide a reset signal when the voltage falls below a certain threshold.

Packaging/Quantity

The MCP121T-270E/TT is typically available in reels containing 3000 units per reel.

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 1.6µA (typical)
• Reset Threshold Accuracy: ±1.5%
• Reset Timeout Period: 100ms (typical)
• Reset Output Options: Active-High or Active-Low

Detailed Pin Configuration

The MCP121T-270E/TT 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 provides the reset signal when the voltage falls below the threshold.

Functional Features

• Voltage Monitoring: The MCP121T-270E/TT continuously monitors the supply voltage and generates a reset signal when it falls below the preset threshold.
• Precision Threshold: The device has a precision voltage threshold with an accuracy of ±1.5%.
• Reset Output Options: It offers both active-high and active-low reset output options, providing flexibility in system design.

Advantages and Disadvantages

Advantages

• Low quiescent current consumption helps in power-sensitive applications.
• Small package size allows for space-efficient designs.
• Precision voltage threshold ensures accurate monitoring.

Disadvantages

• Limited operating temperature range (-40°C to +85°C).
• Single voltage threshold option may not suit all applications.

Working Principles

The MCP121T-270E/TT operates by comparing the supply voltage with a preset threshold. When the voltage falls below this threshold, the device generates a reset signal. This signal can be used to initiate a system reset or trigger other actions based on the specific application requirements.

Detailed Application Field Plans

The MCP121T-270E/TT finds applications in various fields, including but not limited to: - Battery-powered devices - Embedded systems - Industrial automation - Consumer electronics - Automotive electronics

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the MCP121T-270E/TT include: - MAX809: Voltage Supervisors with Adjustable Reset Timeout - TPS3808: Nano-Power Voltage Supervisors with Programmable Delay Time - ADM6315: Microprocessor Supervisory Circuits with Manual Reset Input

These alternative models provide different features and specifications, allowing designers to choose the most suitable option for their specific application requirements.

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