The ON Semiconductor NCP1200AP100 is a versatile and efficient PWM current-mode controller designed for off-line power supplies. This integrated circuit is tailored to deliver cost-effective solutions for low to medium power applications. The NCP1200AP100 is part of ON Semiconductor's well-regarded NCP1200 series, known for its integration of a fixed-frequency current-mode controller with a high voltage startup FET, making it an excellent choice for AC-DC power adapters, offline battery chargers, auxiliary power supplies, and similar applications.

Key Features

• Current-Mode Control: Provides improved transient response and simplified loop compensation.
• Fixed Frequency Operation: Operates at 100kHz, reducing noise and allowing for smaller external components.
• High-Voltage Startup FET: Ensures a quick and efficient startup process, minimizing standby power consumption.
• Auto-Recovery Overload Protection: Protects against overloads, short circuits, and open loop conditions.
• Frequency Foldback: Reduces switching losses during short circuit or overload conditions.
• Low Operating Current: Draws a low quiescent current, enhancing energy efficiency.

Applications

• AC/DC Adapters for Personal Electronics
• Standby and Auxiliary Power Supplies
• Offline Battery Chargers
• Small Power SMPS (Switched-Mode Power Supplies)

The NCP1200AP100's built-in protections and features make it a robust and reliable choice for designers looking to create efficient power solutions. With its high level of integration, it reduces the need for external components, thereby saving space and cost on the PCB. The device's current-mode control ensures stable operation across various load conditions, and its frequency foldback feature helps maintain efficiency even in the face of adverse conditions.

ON Semiconductor's commitment to quality and performance is evident in the NCP1200AP100, making it a smart choice for manufacturers aiming to meet stringent energy efficiency standards while maintaining high performance in their power supply designs.