NCP1653DR2

Overview

The NCP1653DR2G is a 1.5 A power factor controller operating at a maximum switching frequency of 110 kHz. It utilizes average current control mode to manage continuous conduction mode (CCM) boost converters. The device functions within an input voltage range of 9.95 V to 18 V and supports operation temperatures from -40°C to 125°C. It is housed in a lead-free, plastic SOP-8 package with a 1.27 mm pin pitch.

Feature Summary

• Implements average current control for direct power switch conduction time management
• Integrates specialized current sensing technique compatible with low impedance sense resistors
• Designed for compact and rugged PFC stage implementation

Applications

• Power factor correction stages in AC-DC power supplies
• Continuous conduction mode boost converter designs
• General purpose offline power conversion systems

Procurement Notes

Verify the specific suffix against official documentation, as the provided model lacks the 'G' designation typically associated with RoHS compliance in onsemi's catalog. Confirm package dimensions and terminal coating specifications directly from the manufacturer datasheet before finalizing procurement plans.

Selection Notes

Select this component when designing CCM PFC applications requiring average current mode control. Ensure the design accommodates the specified 110 kHz maximum switching frequency and operates within the defined input voltage window. Consider the integrated current sensing capabilities for efficiency optimization using low impedance resistors.

Part Context

This controller belongs to onsemi's family of power factor correction ICs designed for high-efficiency offline power supplies. It shares architectural similarities with related models like the NCP1654, focusing on simplified implementation and robust performance in standard commercial and industrial power conversion environments.

Replacement Considerations

The NCP1654 is documented as an upgraded version sharing the same control scheme and current sensing technique. Verify pin compatibility and feature differences such as brown-out detection before substituting.