NCP1601ADR2

Overview

The NCP1601ADR2G is a compact fixed-frequency discontinuous or critical conduction voltage mode power factor correction controller manufactured by onsemi. It operates within a supply voltage range of 9.6V to 18V and supports switching frequencies up to 58kHz. The device features a low startup current of 17µA and is housed in an 8-SOIC package with a maximum operating temperature of 125°C.

Feature Summary

• Supports both fixed frequency discontinuous conduction mode (DCM) and critical conduction mode (CRM) operation for versatile PFC applications.
• Utilizes voltage mode control architecture to manage power factor correction efficiently.
• Designed with low startup current requirements to minimize standby power consumption.

Applications

• Offline AC-DC switching power supplies
• Power factor correction stages in consumer electronics
• Compact power adapter designs

Procurement Notes

Verify the exact suffix, as the provided model lacks the 'G' indicating RoHS compliance often found in current listings. Confirm lifecycle status, as related variants like NCP1601BDR2G are marked NRND. Ensure compatibility with existing PCB footprints for the 8-SOIC package before procurement.

Selection Notes

Select this component for designs requiring fixed-frequency DCM or CRM PFC control. Compare against newer NCP1606 series for updated features. Verify that the 58kHz switching frequency meets EMI requirements. Check if the 8-SOIC package fits the thermal and spatial constraints of the target application.

Part Context

This part belongs to the NCP1601 family of power factor controllers from onsemi. It is designed for offline switch-mode power supplies. Related parts include NCP1601A and NCP1601AP. The family focuses on cost-effective PFC solutions for medium-power applications.

Replacement Considerations

NCP1607BDR2G is listed as a direct replacement for the discontinued NCP1601BDR2G variant. Verify pinout and electrical specifications compatibility when substituting.