NCP1615CDR2G

Overview

The NCP1615CDR2G is a high-voltage power factor correction (PFC) controller manufactured by onsemi. It utilizes an innovative Current Controlled Frequency Foldback (CCFF) method to drive PFC boost stages. The device operates in critical conduction mode (CrM) when the inductor current exceeds a programmable threshold. Below this level, it linearly decays the switching frequency down to approximately 26 kHz at the sinusoidal zero-crossing point. This architecture maximizes efficiency across nominal and light load conditions while maintaining near-unity power factor even at reduced frequencies.

Feature Summary

• Implements Current Controlled Frequency Foldback (CCFF) for optimized efficiency management
• Integrates high-voltage startup circuitry eliminating external startup components
• Supports robust operation with minimal external component count

Applications

• High voltage PFC boost stage control
• Power supplies requiring high efficiency at light loads
• Applications minimizing standby losses

Procurement Notes

Verify the specific suffix 'CDR2G' against the manufacturer's official datasheet to confirm package type and tape/reel specifications. Ensure compatibility with the required operating temperature range and voltage ratings for the target application design.

Selection Notes

Select this component for designs prioritizing high efficiency under varying load conditions. The integrated startup circuit reduces bill of materials complexity. Confirm that the SOIC-16 package fits the PCB layout constraints and thermal requirements of the system.

Part Context

This part belongs to the NCP1615 series of high-voltage PFC controllers. It is designed for applications demanding high performance and compactness. The series focuses on reducing standby power consumption through advanced frequency modulation techniques.

Replacement Considerations

Check for direct substitutes within the NCP1615 family or compatible high-voltage PFC controllers from onsemi. Verify pinout and functional equivalence before substitution.