MCP1321T-46CE/OT

Product Overview

Category

The MCP1321T-46CE/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: 0.4V to 5.5V
• Low supply current: 10 µA (typical)
• Adjustable reset threshold voltage
• Active-low push-pull output
• Small package size: SOT-23-3
• RoHS compliant

Package

The MCP1321T-46CE/OT is available in a small SOT-23-3 package, which is suitable for space-constrained applications.

Essence

The essence of the MCP1321T-46CE/OT is its ability to provide accurate voltage monitoring and reset generation in various 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: 0.4V to 5.5V
• Reset Threshold Voltage Range: 2.93V to 4.63V
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 10 µA (typical)
• Output Type: Active-Low Push-Pull

Detailed Pin Configuration

The MCP1321T-46CE/OT has three pins:

1. VDD: This pin is connected to the positive supply voltage.
2. GND: This pin is connected to the ground reference.
3. RESET: This pin provides an active-low push-pull output signal indicating the status of the monitored voltage.

Functional Features

• Accurate voltage monitoring: The MCP1321T-46CE/OT ensures precise monitoring of the voltage levels, providing reliable reset generation.
• Adjustable reset threshold: The reset threshold voltage can be adjusted within a specified range to suit different application requirements.
• Low supply current: With a typical quiescent current of only 10 µA, this device minimizes power consumption.
• Small package size: The SOT-23-3 package allows for easy integration into space-constrained designs.

Advantages and Disadvantages

Advantages

• Accurate voltage monitoring ensures system reliability.
• Adjustable reset threshold provides flexibility in different applications.
• Low supply current minimizes power consumption.
• Small package size enables easy integration into compact designs.

Disadvantages

• Limited operating temperature range (-40°C to +85°C).
• Only available in a single package option (SOT-23-3).

Working Principles

The MCP1321T-46CE/OT operates by comparing the monitored voltage with an internally set reference voltage. When the monitored voltage falls below the adjustable reset threshold, the RESET pin is driven low, indicating a reset condition. Once the monitored voltage rises above the reset threshold, the RESET pin returns to its high state.

Detailed Application Field Plans

The MCP1321T-46CE/OT finds applications in various fields, including:

1. Power supply systems: It ensures stable operation by monitoring the input voltage and generating a reset signal when necessary.
2. Microcontroller-based systems: It provides a reliable reset signal to microcontrollers during power-up or voltage fluctuations, ensuring proper initialization.
3. Battery-powered devices: It helps prevent damage to sensitive components by monitoring the battery voltage and initiating a reset if it drops below a certain level.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the MCP1321T-46CE/OT include:

1. MAX809: Voltage supervisor with adjustable reset threshold and push-pull output.
2. ADM708: Precision voltage monitor with adjustable reset threshold and open-drain output.
3. TPS3839: Ultra-low-power voltage supervisor with fixed reset threshold and push-pull output.

These alternative models provide options for different voltage ranges, package sizes, and additional features to suit specific application requirements.

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