NCP1200AD60R2G

Overview

Category: Integrated Circuit (IC)

Use: Power Management

Characteristics: - High-performance current mode controller - Designed for offline flyback converters - Provides constant voltage or constant current output - Offers protection features such as overvoltage and overcurrent protection

Package: SOIC-8

Essence: The NCP1200AD60R2G is a high-performance current mode controller used in offline flyback converters. It provides efficient power management by regulating the output voltage or current while offering various protection features.

Packaging/Quantity: The NCP1200AD60R2G is available in a standard SOIC-8 package. The quantity may vary depending on the supplier.

Specifications

• Input Voltage Range: 9V to 20V
• Output Voltage Range: 5V to 24V
• Maximum Output Current: 600mA
• Switching Frequency: 60kHz
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The NCP1200AD60R2G has the following pin configuration:

1. VCC: Power supply input
2. GND: Ground reference
3. CS: Current sense input
4. FB: Feedback input
5. COMP: Compensation pin
6. DRV: Gate driver output
7. DRAIN: Drain connection for external MOSFET
8. NC: No connection

Functional Features

• Constant voltage or constant current output regulation
• Overvoltage protection
• Overcurrent protection
• Soft-start function for smooth startup
• Frequency jittering for reduced EMI emissions
• Internal leading-edge blanking for improved efficiency

Advantages

• High-performance current mode controller for efficient power management
• Wide input voltage range allows flexibility in different applications
• Offers protection features to safeguard the circuit and connected devices
• Compact SOIC-8 package for easy integration into various designs
• Soft-start function ensures a smooth startup, reducing stress on components

Disadvantages

• Limited maximum output current of 600mA may not be suitable for high-power applications
• Fixed switching frequency of 60kHz may not be optimal for all designs
• Requires external MOSFET for operation, adding complexity to the circuit design

Working Principles

The NCP1200AD60R2G operates as a current mode controller in offline flyback converters. It regulates the output voltage or current by adjusting the duty cycle of the power switch. The feedback loop compares the actual output with the desired value and adjusts the duty cycle accordingly. The controller also incorporates various protection features to ensure safe operation.

Detailed Application Field Plans

The NCP1200AD60R2G is commonly used in the following applications:

1. LED Lighting: Provides constant current regulation for LED drivers, ensuring stable and efficient illumination.
2. Power Adapters: Used in offline flyback converters for various electronic devices, such as laptops, smartphones, and gaming consoles.
3. Battery Chargers: Enables efficient charging of batteries by regulating the output voltage or current.
4. Industrial Power Supplies: Suitable for low-power industrial applications requiring reliable power management.

Detailed and Complete Alternative Models

1. NCP1200P60: Similar to NCP1200AD60R2G but available in a DIP-8 package.
2. UC3842: Current mode controller with similar functionality but different pin configuration.
3. LM2576: Buck converter IC suitable for step-down voltage regulation applications.

These alternative models offer similar functionalities and can be considered as substitutes for the NCP1200AD60R2G depending on specific requirements.

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