NCP1071P130G

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 NCP1071P130G 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 NCP1071P130G is available in a TO-220-7L package. It is typically sold in reels or tubes containing multiple units.

Specifications

• Input Voltage Range: 85V to 265V AC
• Output Voltage: 13V 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 NCP1071P130G 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 direct connection to the rectified AC input

Functional Features

• Primary-side regulation (PSR) control
• Frequency modulation for improved efficiency
• Cycle-by-cycle current limit protection
• Soft-start function for controlled startup
• Built-in overvoltage protection
• Built-in thermal shutdown protection

Advantages and Disadvantages

Advantages: - High efficiency leads to energy savings - Wide input voltage range allows for universal compatibility - Overvoltage and overcurrent protection enhance system reliability - Low standby power consumption reduces wasted energy - Compact TO-220-7L package facilitates easy integration

Disadvantages: - Limited output current capacity (up to 1A) - Requires external components for complete power management solution

Working Principles

The NCP1071P130G utilizes primary-side regulation (PSR) control, where the feedback signal is derived directly from the primary side of the power transformer. This eliminates the need for an optocoupler or secondary-side feedback circuitry, simplifying the design and reducing costs.

The IC operates in a frequency modulation mode, adjusting the switching frequency based on the load conditions to optimize efficiency. It also incorporates cycle-by-cycle current limit protection, ensuring safe operation under varying load conditions.

During startup, the soft-start function gradually ramps up the output voltage, preventing excessive inrush current and minimizing stress on the components. The IC also includes built-in overvoltage and thermal shutdown protection mechanisms to safeguard against abnormal operating conditions.

Detailed Application Field Plans

The NCP1071P130G is suitable for various power management applications, including but not limited to: - AC-DC power supplies - LED lighting systems - Home appliances - Industrial equipment - Consumer electronics

Its wide input voltage range and high efficiency make it ideal for universal power supply designs. The integrated protection features ensure reliable operation in demanding environments.

Detailed and Complete Alternative Models

• NCP1071P065G: Output voltage of 6.5V
• NCP1071P090G: Output voltage of 9V
• NCP1071P150G: Output voltage of 15V
• NCP1071P200G: Output voltage of 20V

These alternative models offer different output voltage options to cater to specific application requirements while maintaining similar characteristics and features as the NCP1071P130G.

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