NCP380HSN05AAT2G

Product Overview

Category

The NCP380HSN05AAT2G belongs to the category of voltage supervisors.

Use

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

Characteristics

• Voltage supervision range: 0.5V to 5.5V
• Low quiescent current: 1.5µA (typical)
• Adjustable reset threshold voltage
• Power-on reset delay time: 100ms (typical)
• Open-drain output
• Small package size: SOT-23-5
• RoHS compliant

Package and Quantity

The NCP380HSN05AAT2G is available in a small SOT-23-5 package. It is typically sold in reels containing 3000 units.

Specifications

• Supply voltage range: 0.5V to 5.5V
• Operating temperature range: -40°C to +85°C
• Reset threshold voltage accuracy: ±1.5%
• Output voltage low: 0.4V (maximum)
• Output current sink capability: 6mA (maximum)
• Power-on reset delay time: 100ms (typical)

Pin Configuration

The NCP380HSN05AAT2G has the following pin configuration:

```

---

| | --|----|-- VDD --|----|-- GND --|----|-- MR --|----|-- RESET |____| ```

• VDD: Supply voltage input
• GND: Ground reference
• MR: Manual reset input (active-low)
• RESET: Reset output

Functional Features

1. Voltage Monitoring: The NCP380HSN05AAT2G continuously monitors the supply voltage and provides a reset signal when it falls below a certain threshold.
2. Adjustable Threshold: The reset threshold voltage can be adjusted to suit specific application requirements.
3. Power-On Reset Delay: It incorporates a power-on reset delay circuit to ensure stable operation during power-up.
4. Open-Drain Output: The reset output is an open-drain configuration, allowing easy interfacing with other devices.

Advantages and Disadvantages

Advantages

• Wide supply voltage range allows compatibility with various systems.
• Low quiescent current minimizes power consumption.
• Adjustable threshold voltage provides flexibility in voltage monitoring.
• Small package size enables space-saving designs.
• RoHS compliance ensures environmental friendliness.

Disadvantages

• Limited sink current capability may restrict usage in high-current applications.
• Lack of built-in hysteresis may lead to potential noise-related issues.

Working Principles

The NCP380HSN05AAT2G operates by comparing the supply voltage with the adjustable threshold voltage. When the supply voltage drops below the threshold, the reset output is activated, indicating a low-voltage condition. This signal can be used to initiate system resets or perform other necessary actions.

Application Field Plans

The NCP380HSN05AAT2G finds extensive use in various electronic systems that require reliable voltage monitoring and control. Some potential application fields include:

1. Microcontrollers: Ensuring proper operation by monitoring the supply voltage and initiating resets if necessary.
2. Battery-Powered Devices: Preventing damage to sensitive components by detecting low battery voltage and triggering appropriate actions.
3. Industrial Control Systems: Monitoring power supply voltages to maintain stable operation and prevent data loss or equipment malfunction.
4. Automotive Electronics: Protecting critical components from voltage fluctuations and ensuring safe operation of vehicle systems.

Alternative Models

1. MAX809: A similar voltage supervisor with adjustable threshold voltage and push-pull output.
2. TPS383: Offers a wide supply voltage range and adjustable reset threshold, with additional built-in hysteresis for noise immunity.
3. ADM6315: Provides a low-power solution with adjustable reset threshold and a small SOT-23 package.

These alternative models offer similar functionality to the NCP380HSN05AAT2G and can be considered as suitable replacements depending on specific application requirements.

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