NCL38046PADR2G

Overview

The NCL38046PADR2G is a high-performance power factor correction (PFC) controller designed for universal input offline applications. It integrates a quasi-resonant flyback controller and a PFC stage to achieve high efficiency and low total harmonic distortion (THD). The device operates in boundary conduction mode (BCM) for the PFC section, ensuring optimal performance across varying line and load conditions while minimizing switching losses through valley switching technology.

Feature Summary

• Integrated dual-controller architecture combining PFC and flyback regulation
• Boundary conduction mode operation for enhanced efficiency
• Valley switching capability to reduce electromagnetic interference
• Built-in protection mechanisms including overvoltage and thermal shutdown

Applications

• Universal input AC-DC adapters
• Battery chargers for consumer electronics
• LED lighting drivers
• Offline power supplies for white goods

Procurement Notes

Verify the specific suffix 'PADR2G' against the manufacturer's official datasheet to confirm package type and tape/reel specifications. Ensure compatibility with your PCB footprint and reflow profile requirements. Cross-reference the RoHS compliance status with current regulatory standards for your target market before finalizing procurement orders.

Selection Notes

Select this component when designing systems requiring integrated PFC and secondary-side regulation in a single IC solution. It is suitable for applications demanding high power factor and low THD without external complex control loops. Consider its operating frequency range and thermal characteristics relative to your system's power density constraints.

Part Context

This part belongs to onsemi's NCL380xx series of integrated power controllers. These devices are engineered to simplify design by merging multiple control functions into one package, reducing component count and board space. The series targets cost-sensitive yet high-efficiency applications in the consumer and industrial sectors.

Replacement Considerations

Check for direct pin-to-pin replacements within the NCL380xx family or compatible BCM PFC controllers from other manufacturers. Verify electrical parameters such as operating voltage range and current limits to ensure functional equivalence in your specific circuit design.