NCP1654BD65R2G

Overview

The NCP1654BD65R2G is a power factor correction controller designed for continuous conduction mode (CCM) boost pre-converters. It operates at a fixed switching frequency of 65 kHz and supports a supply voltage range of 9V to 20V. The device features a low operating supply current of 75 µA and handles a maximum power dissipation of 450 mW. It functions within an ambient temperature range from -40°C to +125°C and is housed in an 8-SOIC surface-mount package.

Feature Summary

• Integrates high-safety features including overcurrent, overvoltage, and undervoltage protection mechanisms.
• Supports follower boost mode operation to reduce pre-converter size and component count.
• Provides PWM control based on instantaneous coil current for efficient power factor correction.

Applications

• Continuous conduction mode (CCM) step-up pre-converters
• Compact and robust power factor correction circuits
• AC to DC conversion systems requiring high efficiency

Procurement Notes

Verify the specific suffix BD65R2G to confirm the 65 kHz switching frequency variant. Ensure compatibility with SOIC-8 footprint requirements. Check RoHS compliance documentation for material declarations. Confirm lead times as manufacturing schedules may vary. Validate that the application design accounts for the specified thermal dissipation limits.

Selection Notes

Select this component when a fixed-frequency CCM PFC solution is required. The 65 kHz frequency balances EMI performance and magnetic component size. Consider the 8-SOIC package for space-constrained designs. Verify input voltage ranges match the 9V to 20V operational window. Evaluate thermal management needs given the 450 mW power dissipation rating.

Part Context

This part belongs to the NCP1654 series of power factor controllers. It shares the same core architecture with variants offering different switching frequencies, such as 133 kHz and 200 kHz models. The series is designed to simplify PFC implementation by minimizing external components while maintaining high reliability and safety standards.

Replacement Considerations

NCP1654BD133R2G offers a 133 kHz switching frequency. NCP1654BD200R2G provides a 200 kHz switching frequency. Both share the same SOIC-8 package and functional interface but differ in operating frequency specifications.