onsemi

NCP1250BP65G

NCP1250BP65G Description

The NCP1250BP65G from onsemi is a high-performance offline switch IC designed for flyback topology applications. Housed in an 8-pin DIP through-hole package, this active-mode PWM controller operates at a fixed switching frequency of 65kHz with an 80% maximum duty cycle. It supports a wide supply voltage range of 8.8V to 28V, ensuring robust performance in diverse power supply designs. The device features isolated output and integrates comprehensive fault protection, including over-power, over-voltage, and short-circuit safeguards, enhancing system reliability. Compliant with ROHS3 and REACH standards, it is suitable for environmentally conscious designs.

NCP1250BP65G Features

• Topology: Optimized for flyback converters with high efficiency.
• Protection Mechanisms: Built-in over-power, over-voltage, and short-circuit protection for fail-safe operation.
• Wide Voltage Range: Operates from 8.8V to 28V, accommodating fluctuating input conditions.
• Fixed Frequency: 65kHz switching ensures consistent performance with minimal noise.
• High Duty Cycle: 80% maximum duty cycle improves power delivery in demanding applications.
• Compliance: ROHS3 and REACH Unaffected, meeting global environmental standards.
• Package: 8DIP through-hole for easy integration in industrial and legacy systems.

NCP1250BP65G Applications

This IC is ideal for offline power supplies requiring robust performance and protection. Key applications include:

• AC/DC adapters for consumer electronics (e.g., chargers, set-top boxes).
• Auxiliary power supplies in industrial equipment.
• LED drivers requiring isolated output and fault tolerance.
• Low-power SMPS designs where reliability and compact form factor are critical.

Conclusion of NCP1250BP65G

The NCP1250BP65G stands out as a reliable, high-efficiency offline switch IC, combining wide input voltage tolerance, advanced protection features, and a fixed-frequency design. Its flyback topology optimization makes it a preferred choice for compact, isolated power supplies in consumer, industrial, and lighting applications. With onsemi's proven quality and compliance with stringent environmental standards, this IC delivers a robust solution for modern power conversion challenges.