MCP1319T-46LE/OT

Product Overview

Category

The MCP1319T-46LE/OT belongs to the category of voltage supervisors.

Use

This product is primarily used for monitoring and controlling the voltage levels in electronic systems.

Characteristics

• Voltage supervision range: 4.6V
• Low quiescent current: 1.5 µA (typical)
• Wide operating voltage range: 1.0V to 5.5V
• Active-low reset output
• Manual reset input
• Power-on reset delay time: 150 ms (typical)
• Small package size: SOT-23-3
• RoHS compliant

Package and Quantity

The MCP1319T-46LE/OT is available in a small SOT-23-3 package. It is typically sold in reels or tubes, with a quantity of 3000 units per reel.

Specifications

• Supply Voltage Range: 1.0V to 5.5V
• Reset Threshold Voltage: 4.6V
• Reset Timeout Period: 150 ms (typical)
• Quiescent Current: 1.5 µA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MCP1319T-46LE/OT has three pins arranged as follows:

```

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| | --| VDD GND |-- Pin 1: Ground (GND) --| RESET VDD |-- Pin 2: Supply Voltage (VDD) |___________| ```

Functional Features

• Voltage Monitoring: The MCP1319T-46LE/OT continuously monitors the supply voltage and provides a reset signal when it falls below the preset threshold.
• Active-Low Reset Output: The active-low reset output is asserted when the supply voltage drops below the threshold, indicating a power failure or unstable voltage condition.
• Manual Reset Input: The manual reset input allows for external control of the reset signal, enabling system reset or initialization as required.

Advantages and Disadvantages

Advantages

• Low quiescent current ensures minimal power consumption.
• Wide operating voltage range makes it compatible with various electronic systems.
• Small package size enables space-saving designs.
• RoHS compliance ensures environmental friendliness.

Disadvantages

• The reset timeout period may not be adjustable, limiting flexibility in certain applications.
• Limited availability of alternative models may restrict design choices.

Working Principles

The MCP1319T-46LE/OT operates by comparing the supply voltage with the preset threshold. When the voltage falls below the threshold, the active-low reset output is triggered, indicating a power failure or unstable voltage condition. The manual reset input allows for external control of the reset signal, providing flexibility in system reset or initialization.

Application Field Plans

The MCP1319T-46LE/OT finds applications in various fields, including: 1. Battery-powered devices: Ensures proper functioning and protection against undervoltage conditions. 2. Industrial automation: Monitors voltage levels in control systems to prevent malfunctions. 3. Automotive electronics: Provides reliable voltage supervision for critical components. 4. Consumer electronics: Safeguards sensitive circuits from voltage fluctuations. 5. Medical equipment: Ensures stable power supply for accurate measurements and patient safety.

Alternative Models

While the MCP1319T-46LE/OT offers unique features, there are alternative models available in the market that serve similar purposes. Some notable alternatives include: - MAX809: Offers adjustable reset timeout period and additional features like watchdog timer. - TPS3839: Provides higher accuracy voltage monitoring and adjustable reset threshold. - ADM6315: Features a wider operating temperature range and enhanced ESD protection.

These alternative models can be considered based on specific application requirements and design constraints.

In conclusion, the MCP1319T-46LE/OT is a voltage supervisor with a wide operating voltage range, low quiescent current, and small package size. It offers reliable voltage monitoring and reset functionality for various electronic systems. While it has certain limitations, there are alternative models available to suit different application needs.