NCP1653ADR2

Overview

The NCP1653ADR2G is a fixed-frequency, continuous conduction mode (CCM) power factor correction (PFC) controller designed for universal line applications. It operates at a switching frequency of 100 kHz and supports follower boost mode to reduce component size. The device integrates input power runaway clamping and requires an external VCC supply between 9.5 V and 18 V after startup. It is housed in a SOP-8 package.

Feature Summary

• Integrates input power runaway clamping circuitry for robust PFC stage protection
• Supports follower boost mode operation to minimize pre-converter size and cost
• Minimizes external component count while maintaining performance flexibility

Applications

• High power universal line applications
• Compact CCM step-up pre-converters
• Power factor correction stages driven by evaluation boards

Procurement Notes

Verify the exact suffix against official documentation, as 'NCP1653ADR2' may be incomplete. Confirm RoHS compliance status via manufacturer declarations. Ensure the ordering code matches the specific package variant required for your design implementation.

Selection Notes

Select this controller for designs requiring fixed-frequency CCM PFC with integrated safety features. Consider follower boost mode if output voltage reduction is acceptable to lower inductor and switch costs. Verify VCC supply constraints during initial design phases.

Part Context

Part of the NCP1653 family from onsemi, designed for efficient drive of CCM step-up pre-converters. The series emphasizes compactness and ease of implementation by minimizing external components. It serves as a driver for robust and compact PFC stages in modern power supplies.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.