NCP1654BD200R2G

Overview

The NCP1654BD200R2G is a Power Factor Correction (PFC) controller designed for Continuous Conduction Mode (CCM) step-up pre-converters. Manufactured by onsemi, it operates at a fixed switching frequency of 200 kHz and is housed in an SOIC-8 surface-mount package. The device supports a supply voltage range of 9V to 20V and functions within an operating temperature range of -40°C to +125°C. It features low startup current and integrates protection mechanisms such as overvoltage and undervoltage detection.

Feature Summary

• Implements average current continuous conduction mode control to minimize electromagnetic interference and di/dt stress.
• Integrates comprehensive safety features including programmable overpower limitation, soft start, and brownout detection.
• Features a high-drive capability图腾柱 gate driver suitable for powering power MOSFETs with significant gate charge.
• Minimizes external component count through integrated reference, oscillator, and protection circuits.

Applications

• Compact and robust CCM PFC stages for consumer electronics
• Power factor correction in computer and server power supplies
• Industrial power supply pre-converters requiring wide input voltage ranges

Procurement Notes

Verify the specific suffix BD200R2G to confirm the 200 kHz switching frequency variant. Confirm RoHS compliance status via official documentation. Check for Not Recommended for New Design (NRND) status if applicable to long-term availability planning. Ensure the SOIC-8 package dimensions match the target PCB footprint requirements before finalizing procurement.

Selection Notes

Select this component when designing CCM PFC applications requiring a fixed 200 kHz switching frequency. It is suitable for designs prioritizing reduced external component count and integrated protection features. Consider the SOIC-8 package constraints and thermal dissipation capabilities relative to the expected power levels. Evaluate compatibility with the required input voltage range and operating temperature specifications.

Part Context

This part belongs to the NCP1654 family of power factor controllers from onsemi. The family includes variants with different fixed switching frequencies, such as 65 kHz and 133 kHz, to suit various design constraints. The NCP1654 series is characterized by its ability to simplify PFC implementation while maintaining high efficiency and reliability in continuous conduction mode applications.

Replacement Considerations

NCP1654BD65R2G offers a 65 kHz switching frequency option. NCP1654BD133R2G provides a 133 kHz switching frequency alternative. These parts share the same SOIC-8 package and core functionality but differ in oscillator settings.