NCP1653P

Overview

The NCP1653P is a compact, fixed-frequency, continuous conduction mode (CCM) power factor correction (PFC) controller designed for boost circuits. It operates at a fixed switching frequency of 67 kHz and supports follower boost or constant output voltage modes. The device integrates high safety protection features and minimizes external component count. It is housed in an 8-pin DIP package with a dual gull-wing terminal configuration.

Feature Summary

• Supports follower boost operation to reduce output voltage, inductor size, and power switch costs
• Integrates robust safety protection features for reliable circuit operation
• Minimizes the number of required external components to simplify implementation

Applications

• Continuous Conduction Mode (CCM) Power Factor Correction (PFC) boost circuits
• Compact PFC stage designs requiring reduced component count
• Applications utilizing follower boost topology for cost optimization

Procurement Notes

Verify the specific suffix 'P' corresponds to the PDIP-8 package variant as documented in official onsemi datasheets. Confirm active status and RoHS compliance through current manufacturer documentation before integration into new designs.

Selection Notes

Select this component for applications requiring a fixed 67 kHz switching frequency CCM PFC solution. Ensure the design accommodates the DIP-8 package constraints and leverages the integrated protection features to minimize external bill of materials.

Part Context

Part of the NCP1653 family of power factor controllers. The 'P' suffix typically denotes the PDIP-8 package option within the series, distinct from SO-8 variants. Designed for robust and compact pre-converter stages.

Replacement Considerations

Consult official substitution guides for equivalent CCM PFC controllers. Verify pinout compatibility and switching frequency alignment when considering alternative manufacturers.