NCP1072P100G

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: TO-220-7L

Essence: The NCP1072P100G is a highly efficient integrated circuit designed for power management applications. It offers various features such as low standby power consumption, wide input voltage range, and protection mechanisms against overvoltage, overcurrent, and thermal shutdown.

Packaging/Quantity: The NCP1072P100G is available in a TO-220-7L package. It is typically sold in reels or trays containing multiple units.

Specifications

• Input Voltage Range: 85V to 265V AC
• Output Voltage: 5V DC
• Output Current: Up to 1A
• Efficiency: Up to 90%
• Standby Power Consumption: Less than 100mW
• Operating Temperature Range: -40°C to 125°C

Pin Configuration

The NCP1072P100G has the following pin configuration:

1. VCC: Power supply input
2. GND: Ground reference
3. FB: Feedback pin for output voltage regulation
4. COMP: Compensation pin for stability control
5. CS: Current sense pin for overcurrent protection
6. EN: Enable pin for turning the IC on/off
7. HV: High-voltage pin for input voltage connection

Functional Features

1. High Efficiency: The NCP1072P100G offers high efficiency, ensuring minimal power loss during operation.
2. Low Standby Power Consumption: With standby power consumption of less than 100mW, the IC helps reduce energy waste during idle periods.
3. Wide Input Voltage Range: The IC can handle input voltages ranging from 85V to 265V AC, making it suitable for various power supply applications.
4. Protection Mechanisms: It incorporates overvoltage and overcurrent protection, safeguarding the connected devices from potential damage.
5. Thermal Shutdown Protection: The IC includes a thermal shutdown mechanism that prevents overheating by shutting down the device when the temperature exceeds a certain threshold.

Advantages and Disadvantages

Advantages: - High efficiency leads to reduced power loss - Wide input voltage range allows for versatile applications - Protection mechanisms ensure device safety - Low standby power consumption helps conserve energy

Disadvantages: - Limited output current capacity (up to 1A) - Relatively high operating temperature range (-40°C to 125°C)

Working Principles

The NCP1072P100G operates as a switch-mode power supply controller. It utilizes a pulse width modulation (PWM) technique to regulate the output voltage. The feedback pin (FB) monitors the output voltage and adjusts the duty cycle of the PWM signal accordingly. This control mechanism ensures a stable and accurate output voltage.

The IC also incorporates various protection features. The current sense pin (CS) detects overcurrent conditions and triggers the overcurrent protection mechanism. In case of an overvoltage event, the IC shuts down to protect the connected devices. Additionally, the thermal shutdown protection prevents the IC from overheating by disabling its operation when the temperature exceeds a safe limit.

Detailed Application Field Plans

The NCP1072P100G is commonly used in the following applications:

1. Power Adapters: The IC is suitable for designing power adapters used in various electronic devices such as laptops, smartphones, and tablets.
2. LED Lighting: It can be employed in LED lighting systems, ensuring efficient power management and reliable operation.
3. Industrial Power Supplies: The IC finds applications in industrial power supplies, providing stable and regulated power to machinery and equipment.

Detailed and Complete Alternative Models

1. NCP1072P065G: Similar to NCP1072P100G but with a lower output voltage of 6.5V.
2. NCP1072P150G: Similar to NCP1072P100G but with a higher output voltage of 15V.
3. NCP1072P200G: Similar to NCP1072P100G but with a higher output voltage of 20V.

These alternative models offer similar features and characteristics, allowing users to choose the most suitable option based on their specific requirements.

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