onsemi

NCP1002P

NCP1002P Description

The NCP1002P from onsemi is a high-performance offline switching IC designed for flyback and forward converter topologies. This obsolete but robust device integrates a 700V breakdown voltage MOSFET, making it suitable for high-voltage applications. It operates at a switching frequency of 100kHz with a 72% duty cycle, ensuring efficient power conversion. The IC features an isolated output and supports a supply voltage range of 7.5V to 10V, with a low start-up voltage of 8.5V. Packaged in an 8-pin DIP through-hole format, it is ideal for legacy designs requiring reliable offline power management.

NCP1002P Features

• Integrated 700V MOSFET: Eliminates the need for an external switch, reducing component count.
• Fault Protection: Includes current limiting and over-temperature protection for enhanced reliability.
• Wide Input Range: Operates efficiently across a 7.5V–10V supply range, accommodating varying input conditions.
• High Duty Cycle (72%): Optimizes power delivery in demanding applications.
• Through-Hole Mounting: Simplifies prototyping and repair in industrial environments.
• REACH Unaffected: Compliant with environmental regulations, ensuring broader usability.

NCP1002P Applications

The NCP1002P excels in offline power supplies, particularly in:

• AC/DC converters for industrial equipment.
• Auxiliary power supplies in appliances and telecom systems.
• LED drivers requiring high-voltage isolation.
• Legacy designs where through-hole components are preferred.

Conclusion of NCP1002P

While marked as obsolete, the NCP1002P remains a viable choice for rugged, high-voltage offline switching applications. Its integrated protection features, high breakdown voltage, and isolated output make it a reliable solution for legacy systems. Engineers seeking a cost-effective, proven offline switcher for industrial or auxiliary power applications may still find value in this IC. For new designs, consider onsemi's newer alternatives with updated features.