NCP1601BPG

Overview

The NCP1601BPG is a compact fixed-frequency discontinuous or critical conduction voltage mode power factor correction controller manufactured by onsemi. It operates in an 8-pin PDIP package and supports a supply voltage range of 9.6V to 18V. The device features a switching frequency of 58kHz and a low startup current of 17 µA. It is designed for operation across a temperature range of -40°C to 125°C.

Feature Summary

• Supports critical conduction mode (CRM) and transition mode PFC applications
• Voltage mode control architecture for stable regulation
• Integrated output overvoltage protection circuitry

Applications

• Offline AC-DC power supplies
• Power factor correction stages in consumer electronics
• Industrial power conversion systems

Procurement Notes

Verify component authenticity through authorized channels as the NCP1601BPG is listed as obsolete. Confirm package integrity and pin alignment against the original datasheet specifications before integration into new designs.

Selection Notes

Select this component for designs requiring CRM PFC control with fixed frequency operation. Ensure the application environment remains within the specified -40°C to 125°C operating temperature range and that the supply voltage stays between 9.6V and 18V.

Part Context

This part belongs to the NCP1601 family of power factor controllers from onsemi. It serves as a legacy solution for offline switching regulators, preceding newer generations of PFC ICs in the manufacturer's portfolio while maintaining compatibility with standard discrete component implementations.

Replacement Considerations

The NCP1607BDR2G is documented as a direct replacement option.