onsemi

NCP1200AD60R2

NCP1200AD60R2 Description

The NCP1200AD60R2 from onsemi is an offline switching flyback controller IC designed for isolated AC/DC power conversion applications. Packaged in an 8-pin SOIC and delivered in Tape & Reel (TR), this obsolete but robust component operates within a wide temperature range of 0°C to 125°C (TJ). It supports a switching frequency of 60kHz with an 83% duty cycle, making it suitable for compact power supply designs. The device features no internal switch, requiring an external MOSFET, and offers comprehensive fault protection including current limiting, overload, and short-circuit protection. Its 16V maximum supply voltage (Vcc/Vdd) ensures reliable performance in low-to-medium power offline converters.

NCP1200AD60R2 Features

• Topology: Optimized for flyback converters with isolated outputs.
• Protection Mechanisms: Built-in current limiting, overload, and short-circuit protection for enhanced system reliability.
• Switching Performance: 60kHz fixed frequency operation with 83% duty cycle for efficient power conversion.
• Wide Operating Range: Functions reliably across 0°C to 125°C (TJ).
• Compliance: REACH unaffected and EAR99 classified for global market compatibility.
• Packaging: Surface-mount 8SOIC in Tape & Reel (TR) for automated assembly.

NCP1200AD60R2 Applications

• Low-Power Adapters: Ideal for AC/DC adapters (e.g., chargers for consumer electronics).
• Auxiliary Power Supplies: Used in industrial control systems and appliance power modules.
• LED Drivers: Suitable for isolated LED power supplies due to its stable switching performance.
• Standby Power Circuits: Efficiently manages standby power in TVs, monitors, and networking equipment.

Conclusion of NCP1200AD60R2

The NCP1200AD60R2 is a versatile offline flyback controller offering robust protection features, stable 60kHz switching, and wide thermal operability. While marked obsolete, its design remains relevant for cost-sensitive, low-power isolated converters in consumer and industrial applications. Engineers seeking a reliable, externally switched solution for compact power supplies may still find value in legacy stock or alternative sourcing.