NCP1615DDR2G

Overview

The NCP1615DDR2G is a high-voltage power factor correction controller from onsemi, designed for driving PFC boost stages. It utilizes Current Controlled Frequency Foldback (CCFF) technology to optimize efficiency across the entire load range. The device integrates a high-voltage startup circuit and operates within a supply voltage range of 9.5 V to 28 V. It supports critical conduction mode operation with a switching frequency of 26 kHz. The component is housed in a 16-SOIC package with 15 leads and functions reliably within an operating temperature range of -40°C to 125°C.

Feature Summary

• Implements Current Controlled Frequency Foldback (CCFF) method for optimized efficiency across varying loads
• Integrates a high-voltage startup circuit with under-voltage detection to eliminate external startup components
• Features valley switching capability to reduce MOSFET turn-on losses by activating at voltage minima
• Provides high drive current capabilities (-500 mA / +800 mA) to effectively control high gate charge power MOSFETs

Applications

• Personal computer power supplies
• Offline appliances
• LED drivers
• Flat panel televisions

Procurement Notes

Verify the specific suffix 'DDR2G' against the manufacturer's official datasheet to confirm pinout and electrical specifications. Confirm RoHS compliance status as indicated in product documentation. Check for obsolescence notices or lifecycle changes prior to finalizing design-in decisions. Ensure the 16-SOIC package dimensions match the target PCB footprint requirements.

Selection Notes

Select this component for designs requiring high efficiency in power factor correction applications. The integrated high-voltage startup reduces bill of materials count by removing external resistors. The CCFF feature ensures optimal performance from light to full load conditions. Verify that the 26 kHz switching frequency aligns with electromagnetic interference constraints in the target system.

Part Context

This part belongs to the NCP1615 series of high-voltage PFC controllers. It is functionally related to variants such as the NCP1615C5DR2G and NCP1616A1DR2G. These devices share similar architectural goals of improving efficiency through advanced control techniques like CCFF and valley switching. The series targets cost-effective and reliable power management solutions for consumer electronics.

Replacement Considerations

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