NCP1623CDR2G

Overview

The NCP1623CDR2G is a Power Factor Correction (PFC) controller manufactured by onsemi, designed for critical conduction mode (CRM) applications. It operates within a supply voltage range of 4.5 V to 18 V and supports switching frequencies up to 100 kHz. The device features a peak current limit of 1 A and includes integrated UVLO with latch-up inhibition. It is housed in an SOIC-8 package and functions as a step-up PFC controller.

Feature Summary

• Supports Critical Conduction Mode (CRM) operation for enhanced efficiency
• Integrated variable frequency control mechanism
• Built-in under-voltage lockout with latch-up inhibition

Applications

• Power factor correction in AC-DC power supplies
• Stand-alone PFC stages for consumer electronics
• Adaptive charging adapters

Procurement Notes

Verify the specific suffix 'CDR2G' against official onsemi documentation to confirm pinout compatibility and RoHS status. Ensure the ordering part number matches the exact tape-and-reel quantity requirements specified in the manufacturer's latest datasheet revision.

Selection Notes

Select this component for designs requiring CRM-based PFC solutions with moderate power levels. Consider the SOIC-8 package constraints and thermal performance relative to the expected load current. Validate that the input voltage range aligns with the system's operational requirements.

Part Context

This part belongs to the NCP1623 series of PFC controllers from onsemi. It is specifically engineered for high-efficiency power factor correction in non-isolated applications, offering a balance between performance and simplicity for standard power supply architectures.

Replacement Considerations

Consult official cross-reference lists for verified substitutes. Generic replacements may differ in pin configuration or electrical characteristics; verify compatibility before integration.