NCP303LSN25T1

Product Overview

Category

NCP303LSN25T1 belongs to the category of voltage supervisors.

Use

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

Characteristics

• Voltage threshold: 2.5V
• Low quiescent current: 10µA (typical)
• Wide operating voltage range: 1.0V to 6.0V
• Adjustable delay time
• Open-drain output
• Small package size: SOT-23-5

Package

The NCP303LSN25T1 is available in a small SOT-23-5 package, which is suitable for space-constrained applications.

Essence

The essence of NCP303LSN25T1 lies in its ability to provide accurate voltage monitoring and supervision, ensuring the proper functioning of electronic circuits.

Packaging/Quantity

This product is typically packaged in reels containing 3000 units.

Specifications

• Supply voltage range: 1.0V to 6.0V
• Threshold voltage: 2.5V
• Quiescent current: 10µA (typical)
• Operating temperature range: -40°C to +85°C
• Output type: Open-drain

Detailed Pin Configuration

The NCP303LSN25T1 features a standard SOT-23-5 package with the following pin configuration:

```

---

| | --| VDD|-- Pin 1: Supply Voltage (VDD) --| GND|-- Pin 2: Ground (GND) --| RST|-- Pin 3: Reset Output (Open-drain) --| THR|-- Pin 4: Threshold Voltage (THR) |____| ```

Functional Features

• Accurate voltage monitoring: The NCP303LSN25T1 ensures precise monitoring of voltage levels, preventing circuit malfunctions.
• Adjustable delay time: This feature allows users to set a specific delay time before the reset output is activated.
• Open-drain output: The open-drain output provides flexibility in connecting to other devices or circuits.

Advantages and Disadvantages

Advantages

• Low quiescent current consumption helps conserve power in battery-operated applications.
• Wide operating voltage range enables compatibility with various electronic systems.
• Small package size allows for space-saving designs.

Disadvantages

• Lack of built-in hysteresis may lead to potential oscillations near the threshold voltage.
• Limited number of pins restricts additional functionalities without external components.

Working Principles

The NCP303LSN25T1 operates by comparing the input voltage with the threshold voltage (2.5V). When the input voltage falls below this threshold, the reset output is activated. The delay time can be adjusted to ensure stability during power-up or power-down sequences.

Detailed Application Field Plans

The NCP303LSN25T1 finds applications in various fields, including but not limited to: - Power supply monitoring in industrial control systems - Battery voltage monitoring in portable devices - Overvoltage protection in automotive electronics - Power management in IoT devices

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to NCP303LSN25T1 include: - MAX823: Voltage supervisor with adjustable threshold and integrated watchdog timer. - TPS3839: Ultra-low-power voltage supervisor with programmable delay and manual reset input. - ADM6315: Microprocessor supervisory circuit with adjustable threshold and watchdog timer.

These alternative models provide options for different voltage thresholds, package sizes, and additional features, allowing designers to choose the most suitable solution for their specific requirements.

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