MCP1319T-44LE/OT

Product Overview

Category

The MCP1319T-44LE/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: 1.8V to 4.5V
• Low quiescent current: 1.6 µA (typical)
• Precision voltage threshold options: 2.93V, 3.08V, 3.63V, and 4.38V
• 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-44LE/OT is available in a small SOT-23-3 package. It is typically sold in reels containing a quantity of 3000 units per reel.

Specifications

• Supply Voltage Range: 1.8V to 4.5V
• Operating Temperature Range: -40°C to +125°C
• Reset Threshold Accuracy: ±1.5%
• Reset Timeout Period: 150 ms (typical)
• Quiescent Current: 1.6 µA (typical)
• Reset Output Type: Active-Low
• Manual Reset Input: Yes
• Power-On Reset Delay Time: 150 ms (typical)

Pin Configuration

The MCP1319T-44LE/OT has three pins arranged as follows:

```

---

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

Functional Features

• Voltage monitoring: The MCP1319T-44LE/OT continuously monitors the supply voltage and provides a reset signal when it falls below a predefined threshold.
• Active-low reset output: The reset output is driven low when the monitored voltage drops below the threshold, indicating a power failure or an unstable voltage condition.
• Manual reset input: The device includes a manual reset input that allows external control of the reset function.
• Power-on reset delay: The MCP1319T-44LE/OT incorporates a power-on reset delay circuit to ensure stable operation during power-up.

Advantages and Disadvantages

Advantages

• Wide operating voltage range allows compatibility with various electronic systems.
• Low quiescent current minimizes power consumption.
• Small package size enables space-saving designs.
• Precision voltage threshold options provide flexibility for different applications.

Disadvantages

• Limited number of voltage threshold options available.
• Lack of additional features such as adjustable reset timeout period.

Working Principles

The MCP1319T-44LE/OT operates by comparing the supply voltage against a preset threshold. When the voltage drops below the threshold, the reset output is activated, indicating a power failure or an unstable voltage condition. The manual reset input allows external control over the reset function, providing flexibility in system design.

Application Field Plans

The MCP1319T-44LE/OT finds application in various electronic systems where voltage monitoring and control are critical. Some potential application fields include:

1. Battery-powered devices: Ensuring proper voltage levels in portable electronics, such as smartphones, tablets, and wearable devices.
2. Industrial control systems: Monitoring voltage stability in industrial automation equipment to prevent malfunctions or damage.
3. Automotive electronics: Safeguarding sensitive components from voltage fluctuations in automotive systems, including engine control units and infotainment systems.
4. Power supply units: Enhancing the reliability of power supplies by detecting and responding to voltage variations.
5. IoT devices: Maintaining stable voltage levels in Internet of Things (IoT) devices for reliable connectivity and operation.

Alternative Models

• MCP1316T-29LE/OT
• MCP1316T-30LE/OT
• MCP1316T-33LE/OT
• MCP1316T-42LE/OT

These alternative models offer similar functionality and characteristics, providing options for different voltage thresholds and package sizes.

In conclusion, the MCP1319T-44LE/OT is a voltage supervisor with a wide operating range, low power consumption, and various voltage threshold options. Its small package size and precision make it suitable for a range of applications in different industries. However, it has limited voltage threshold options and lacks certain advanced features.