NCP301LSN28T1 - English Editing Encyclopedia Entry

Product Overview

Category

The NCP301LSN28T1 belongs to the category of voltage supervisors.

Use

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

Characteristics

• Voltage Range: 0.4V to 28V
• Low Quiescent Current: 5µA (typical)
• Adjustable Reset Threshold Voltage
• Power-On Reset Delay Time: 100ms (typical)
• Open Drain Output
• Small Package Size: SOT-23-5

Packaging/Quantity

The NCP301LSN28T1 is available in a small SOT-23-5 package. It is typically sold in reels containing a quantity of 3000 units.

Specifications

• Supply Voltage Range: 0.4V to 28V
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 5µA (typical)
• Reset Threshold Voltage Accuracy: ±2%
• Power-On Reset Delay Time: 100ms (typical)
• Output Type: Open Drain
• Package Type: SOT-23-5

Detailed Pin Configuration

The NCP301LSN28T1 has the following pin configuration:

```

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| | --| VDD | --| GND | --| RESET | --| NC | --| OUT | |_______| ```

Pin Descriptions: - VDD: Supply Voltage Input - GND: Ground - RESET: Reset Output - NC: No Connection - OUT: Open Drain Output

Functional Features

The NCP301LSN28T1 offers the following functional features:

1. Voltage Monitoring: The device continuously monitors the input voltage and provides a reset signal when the voltage 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: The device ensures a stable output by providing a fixed delay time after power-on before releasing the reset signal.
4. Open Drain Output: The open drain output allows for easy integration with other circuitry.

Advantages and Disadvantages

Advantages

• Wide voltage range allows for versatile applications.
• Low quiescent current minimizes power consumption.
• Adjustable threshold voltage offers flexibility.
• Small package size enables space-saving designs.
• Open drain output simplifies interfacing with other components.

Disadvantages

• No built-in hysteresis feature, which may lead to potential oscillations near the threshold voltage.

Working Principles

The NCP301LSN28T1 operates based on a voltage comparator principle. It compares the input voltage with a reference voltage set by the adjustable threshold. When the input voltage drops below this threshold, the reset output is activated, indicating a low voltage condition. The reset output remains active until the input voltage rises above the threshold and the power-on reset delay time has elapsed.

Detailed Application Field Plans

The NCP301LSN28T1 finds applications in various fields, including:

1. Power Supply Monitoring: It can be used to monitor the input voltage of power supplies and generate a reset signal if the voltage drops below a safe level.
2. Battery-Powered Devices: The device ensures proper operation by monitoring battery voltage and initiating a reset when it reaches a critical level.
3. Microcontroller Systems: It provides a reliable reset signal to microcontrollers during power-up or voltage fluctuations, ensuring proper initialization.
4. Industrial Control Systems: The NCP301LSN28T1 helps maintain stable operation in industrial control systems by monitoring supply voltages and triggering resets when necessary.

Detailed and Complete Alternative Models

1. NCP302LSN28T1: Similar to the NCP301LSN28T1, but with an additional hysteresis feature for improved noise immunity.
2. MAX823L: A voltage supervisor IC with adjustable threshold voltage and a push-pull output configuration.
3. TPS3808G01: Offers a wide supply voltage range and adjustable reset threshold, suitable for various applications.
4. ADM6315: Provides a precision voltage monitor with adjustable reset threshold and a watchdog timer for enhanced system reliability.

These alternative models offer similar functionality to the NCP301LSN28T1 and can be considered based on specific application requirements.

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