NCP1650DR2

Overview

The NCP1650DR2G is a Power Factor Controller designed for Continuous Conduction Mode (CCM) PFC boost circuits. It operates at fixed switching frequencies of 67 kHz or 100 kHz, supporting follower boost and constant output voltage modes. The device integrates high safety protection features to minimize external components. It is housed in an SOIC-8 package with a lead-free finish.

Feature Summary

• Supports CCM PFC boost topologies with integrated current sensing
• Enables compact designs by minimizing external component count
• Includes comprehensive safety protection mechanisms

Applications

• Continuous Conduction Mode Power Factor Correction stages
• Follower boost converter implementations
• Constant output voltage power supplies

Procurement Notes

Verify the suffix 'G' indicates RoHS compliance and halogen-free status. Confirm the package type matches the required SOIC-8 footprint. Ensure the specific switching frequency variant aligns with the design specifications. Check for obsolescence notices as this series may have limited new design recommendations.

Selection Notes

Select based on the required switching frequency option of 67 kHz or 100 kHz. Evaluate the need for follower boost functionality to reduce inductor size. Consider the integration level for simplified circuit design. Verify thermal performance within the specified operating temperature range.

Part Context

This component belongs to the NCP1650 series of power factor controllers from onsemi. It is part of a family designed for efficient AC/DC conversion. The series focuses on reducing system complexity and cost through high integration levels suitable for mainstream power supply applications.

Replacement Considerations

The NCP1653A serves as a functional alternative within the same product family. Both devices support CCM PFC applications with similar control schemes. Verify pin compatibility and switching frequency requirements before substitution.