NCP1601BP

Overview

The NCP1601BP is a Power Factor Correction (PFC) controller designed for operation in Discontinuous Conduction Mode (DCM) and Critical Conduction Mode (CRM). It integrates protection features including overvoltage, undervoltage, overcurrent, and thermal shutdown. The device supports voltage mode feedback and offers programmable DCM switching frequency with synchronous mode capability.

Feature Summary

• Operates in both discontinuous and critical conduction modes to balance EMI noise reduction and component stress management.
• Includes comprehensive protection mechanisms such as overvoltage, undervoltage, overcurrent, and thermal shutdown.
• Supports voltage mode feedback for simple circuit implementation and allows external digital signal input for synchronous operation.

Applications

• Power factor correction pre-regulators for electronic ballasts
• AC adapters for consumer electronics
• Power supplies for televisions and monitoring equipment

Procurement Notes

Verify the specific suffix 'BP' against official onsemi documentation to confirm pinout compatibility and package type. Ensure the selected variant meets the required UVLO hysteresis specifications for your application design.

Selection Notes

Select this controller for low-to-medium power applications requiring high reliability and compliance with input current harmonic limits. Consider the fixed-frequency DCM benefits for EMI reduction or CRM advantages for cost-effective magnetics when designing the PFC stage.

Part Context

This component belongs to the NCP1601 family of PFC controllers from onsemi. It is engineered to provide efficient power conversion while minimizing system size and cost through integrated control logic and robust protection features suitable for various commercial power supply designs.

Replacement Considerations

NCP1601A and NCP1601B are variants within the same family. Verify if the specific UVLO hysteresis requirements of your design align with the characteristics of these alternative models before substitution.