NCP1201P60G - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management IC

Characteristics: - Low-power offline Switcher - High voltage startup current source - Frequency jittering for low EMI - Built-in soft-start function - Overvoltage protection - Overcurrent protection - Thermal shutdown protection

Package: TO-220-7L

Essence: The NCP1201P60G is a low-power offline switcher designed for power management applications. It provides various protection features and operates at high efficiency.

Packaging/Quantity: The NCP1201P60G 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: 5V DC
• Maximum Output Current: 600mA
• Operating Frequency: 60kHz
• Startup Current: 100μA (typical)
• Quiescent Current: 2.5mA (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The NCP1201P60G has the following pin configuration:

1. VCC: Power supply input
2. GND: Ground reference
3. FB: Feedback pin for output voltage regulation
4. CS: Current sense pin for overcurrent protection
5. COMP: Compensation pin for stability control
6. DRAIN: Drain pin for power MOSFET
7. SYNC: Synchronization pin for frequency synchronization

Functional Features

1. Low-Power Offline Switcher: The NCP1201P60G is designed to efficiently convert high-voltage AC input to low-voltage DC output, making it suitable for various power management applications.

2. High Voltage Startup Current Source: The integrated high voltage startup current source ensures reliable startup even under challenging conditions.

3. Frequency Jittering for Low EMI: The frequency jittering feature helps reduce electromagnetic interference (EMI) emissions, ensuring compliance with regulatory standards.

4. Built-in Soft-Start Function: The soft-start function prevents excessive inrush current during startup, protecting the circuit and components.

5. Protection Features: The NCP1201P60G incorporates overvoltage, overcurrent, and thermal shutdown protection mechanisms to safeguard the circuit from potential damage.

Advantages

• High efficiency power conversion
• Compact TO-220-7L package
• Wide input voltage range for versatile applications
• Built-in protection features enhance system reliability
• Frequency jittering reduces EMI emissions

Disadvantages

• Limited maximum output current (600mA)
• Requires external components for complete power management solution

Working Principles

The NCP1201P60G operates as a flyback converter, converting high-voltage AC input to low-voltage DC output. It utilizes a power MOSFET as a switch and an integrated control circuit to regulate the output voltage. The feedback mechanism adjusts the duty cycle of the switch to maintain the desired output voltage. The built-in protection features monitor various parameters and take appropriate actions to prevent damage to the circuit.

Detailed Application Field Plans

The NCP1201P60G is commonly used in the following applications:

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

Detailed and Complete Alternative Models

1. NCP1200P60G
2. NCP1203P60G
3. NCP1207P60G
4. NCP1212P60G
5. NCP1216P60G

These alternative models offer similar functionality and characteristics, providing flexibility in choosing the most suitable option for specific applications.

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