The NCP1251BSN100T1G from ON Semiconductor is a cutting-edge PWM Current-Mode Controller designed for high-performance, off-line power supplies. This component integrates a host of features that streamline the design of power supply units, making it an ideal choice for a variety of applications, including adapters, open-frame SMPS, and LCD TVs.

Key Features

• Current-Mode Control: The NCP1251BSN100T1G utilizes current-mode control to provide excellent load and line regulation, ensuring a stable output under varying conditions.
• Adjustable Switching Frequency: This device offers an adjustable switching frequency up to 100 kHz, allowing designers to optimize their power supply for efficiency or size.
• Auto-Recovery Overcurrent Protection: The built-in overcurrent protection mechanism ensures the device automatically recovers after an overcurrent event, enhancing the reliability of the power supply.
• Brown-Out Protection: With its brown-out protection feature, the NCP1251BSN100T1G can detect under-voltage conditions, protecting the system from erratic operation due to dips in input voltage.
• Frequency Foldback: To improve efficiency at light loads, the device features frequency foldback, which reduces switching losses by lowering the operating frequency.

Applications

• AC-DC Adapters
• Open-Frame SMPS
• Offline Battery Chargers
• Standby Power Supplies
• LCD TV Power Supplies

Quality and Reliability

ON Semiconductor is known for its commitment to quality, and the NCP1251BSN100T1G is no exception. It is built to meet the stringent requirements for commercial-grade components, ensuring long-term reliability and performance.

Environmental Compliance

The NCP1251BSN100T1G complies with RoHS and Green Product standards, reflecting ON Semiconductor's dedication to environmental responsibility. This compliance ensures that the product is free from harmful substances and is suitable for use in green-conscious applications.