NCP1652DR2G

Overview

Category: Integrated Circuit (IC)

Use: Power Management

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

Package: SOIC-8

Essence: The NCP1652DR2G 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 NCP1652DR2G is available in a standard SOIC-8 package. It is typically sold in reels of 2500 units.

Specifications

The NCP1652DR2G has the following specifications:

• Input Voltage Range: 4.5V to 25V
• Output Voltage Range: 0.8V to 24V
• Maximum Output Current: 1.5A
• Switching Frequency: 65kHz to 100kHz
• Standby Power Consumption: <10mW
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The NCP1652DR2G has the following pin configuration:

```

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| | --| VCC GND |-- Pin 1: Ground --| FB EN |-- Pin 2: Enable --| COMP CS |-- Pin 3: Current Sense --| SS VIN |-- Pin 4: Input Voltage --| OUT NC |-- Pin 5: Not Connected --| NC NC |-- Pin 6: Not Connected --| NC NC |-- Pin 7: Not Connected --| NC NC |-- Pin 8: Not Connected |___________| ```

Functional Features

The NCP1652DR2G offers the following functional features:

1. High Efficiency: The integrated circuit utilizes advanced power conversion techniques to achieve high efficiency, resulting in reduced power loss and improved energy utilization.

2. Low Standby Power Consumption: In standby mode, the NCP1652DR2G consumes minimal power, contributing to overall energy savings and extended battery life in portable applications.

3. Wide Input Voltage Range: The IC can operate within a wide input voltage range, making it suitable for various power supply designs.

4. Overvoltage and Overcurrent Protection: The NCP1652DR2G incorporates protection mechanisms to safeguard against overvoltage and overcurrent conditions, ensuring the safety and reliability of the connected devices.

5. Thermal Shutdown Protection: To prevent overheating, the IC includes thermal shutdown protection, which automatically shuts down the device when the temperature exceeds a certain threshold.

Advantages and Disadvantages

Advantages: - High efficiency leads to energy savings - Wide input voltage range allows for versatile applications - Comprehensive protection features ensure device safety - Low standby power consumption prolongs battery life

Disadvantages: - Limited maximum output current (1.5A) - Relatively low switching frequency compared to some alternatives

Working Principles

The NCP1652DR2G operates as a pulse width modulation (PWM) controller. It regulates the output voltage by adjusting the duty cycle of the internal power switch. The feedback loop continuously monitors the output voltage and adjusts the duty cycle accordingly to maintain a stable output.

When the input voltage exceeds the desired output voltage, the overvoltage protection mechanism activates, reducing the duty cycle to prevent excessive voltage at the output. Similarly, the overcurrent protection feature limits the output current to protect the connected load.

Detailed Application Field Plans

The NCP1652DR2G is commonly used in various power management applications, including:

1. Switching Power Supplies: The IC is suitable for designing efficient and compact switching power supplies used in consumer electronics, industrial equipment, and automotive systems.

2. Battery Chargers: With its low standby power consumption and protection features, the NCP1652DR2G can be employed in battery charger circuits for portable devices, electric vehicles, and renewable energy systems.

3. LED Lighting: The high efficiency and wide input voltage range make the IC ideal for LED lighting applications, enabling energy-efficient illumination in residential, commercial, and outdoor settings.

4. Power Adapters: The NCP1652DR2G can be utilized in power adapter designs to provide regulated power for laptops, smartphones, and other electronic devices.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the NCP1652DR2G include:

1. LM2576-ADJ: A step-down voltage regulator with adjustable output voltage and a maximum output current of 3A.
2. LT1370HV: A high-voltage step-down switching regulator