The NCP1236B65NBGEVB is a highly integrated evaluation board designed by ON Semiconductor, a leading provider of semiconductor-based solutions. This evaluation board showcases the capabilities of the NCP1236, a fixed-frequency current-mode controller designed for high-performance off-line converters. Its primary application is in AC-DC power supplies, particularly for those that require a compact form factor and high efficiency, such as in television power supplies, desktop power adapters, and silver box converters.

Key Features

• Fixed-Frequency Operation: The NCP1236 operates at a fixed frequency, providing a predictable and stable switching pattern, which simplifies EMI filter design.
• High-Voltage Startup: The device integrates a high-voltage startup circuit that ensures reliable startup and reduces standby power consumption.
• Auto-Recovery Overload Protection: The built-in overload protection automatically recovers, helping to prevent damage to the power supply and the end application during overcurrent conditions.
• Frequency Foldback: To enhance efficiency and reduce audible noise, the NCP1236 features frequency foldback under light-load conditions.
• Skip Cycle Operation: The skip cycle technique is employed at low power to maintain high efficiency over a wide load range.
• Adjustable Overcurrent Protection: Users can set the overcurrent protection threshold to match specific application requirements.

Product Applications

The NCP1236B65NBGEVB is versatile and applicable in a variety of power supply designs. Its efficiency and power-saving features make it well-suited for:

• LED Backlighting Supplies
• Flat-Panel Television Power Supplies
• Desktop Power Adapters
• Offline Battery Chargers
• AC-DC Adapters for Personal Electronics

Design Support

ON Semiconductor provides comprehensive design support for the NCP1236B65NBGEVB, including detailed datasheets, application notes, and reference designs. This support helps designers to quickly understand and integrate the evaluation board into their specific applications, significantly reducing time-to-market.

Overall, the NCP1236B65NBGEVB from ON Semiconductor represents a robust and efficient solution for modern power supply requirements, combining performance with practical design considerations to facilitate ease of use and implementation.