NCP1381DR2G

Overview

Category: Integrated Circuit (IC)

Use: Power Management

Characteristics: - High efficiency - Low standby power consumption - Wide input voltage range - Overvoltage protection - Overcurrent protection - Thermal shutdown protection

Package: SOIC-8

Essence: The NCP1381DR2G is a high-performance integrated circuit designed for power management applications. It offers efficient power conversion, low standby power consumption, and various protection features.

Packaging/Quantity: The NCP1381DR2G is available in a standard SOIC-8 package. It is typically sold in reels of 2500 units.

Specifications

• Input Voltage Range: 4.5V to 25V
• Output Voltage Range: 0.8V to 20V
• Maximum Output Current: 3A
• Switching Frequency: 100kHz to 500kHz
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The NCP1381DR2G has the following pin configuration:

```

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| | --| VCC GND |-- Pin 1: Ground (GND) --| FB EN |-- Pin 2: Enable (EN) --| COMP CS |-- Pin 3: Current Sense (CS) --| SS VCC |-- Pin 4: Supply Voltage (VCC) |___________| ```

Functional Features

1. High Efficiency: The NCP1381DR2G utilizes advanced control techniques to achieve high power conversion efficiency.
2. Low Standby Power Consumption: In standby mode, the IC consumes minimal power, reducing overall energy consumption.
3. Wide Input Voltage Range: The IC can operate with input voltages ranging from 4.5V to 25V, making it suitable for a wide range of applications.
4. Overvoltage Protection: The NCP1381DR2G incorporates overvoltage protection circuitry to safeguard connected devices from excessive voltage levels.
5. Overcurrent Protection: It features overcurrent protection to prevent damage caused by excessive current flow.
6. Thermal Shutdown Protection: The IC includes thermal shutdown protection, which shuts down the device in case of excessive temperature, preventing overheating and potential damage.

Advantages

• High efficiency results in reduced power loss and improved energy savings.
• Wide input voltage range allows for versatile application possibilities.
• Multiple protection features ensure the safety and reliability of connected devices.
• Compact SOIC-8 package enables easy integration into various electronic systems.

Disadvantages

• Limited maximum output current of 3A may not be sufficient for high-power applications.
• The IC's operating temperature range might restrict its use in extreme temperature environments.

Working Principles

The NCP1381DR2G operates as a pulse width modulation (PWM) controller. It regulates the output voltage by adjusting the duty cycle of the internal switching transistor. By continuously monitoring the feedback voltage, the IC maintains a stable output voltage despite variations in input voltage and load conditions.

Application Field Plans

The NCP1381DR2G is commonly used in the following applications:

1. Power supplies for consumer electronics
2. Battery chargers
3. LED lighting systems
4. Industrial automation equipment
5. Automotive electronics

Alternative Models

1. NCP1377BDR2G
2. NCP1392BDR2G
3. NCP1396ADR2G
4. NCP1396BDR2G
5. NCP1397BDR2G

These alternative models offer similar functionality and can be considered as replacements for the NCP1381DR2G in various applications.

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