NCP1605DR2G

Overview

The NCP1605DR2G is a power factor controller manufactured by onsemi, designed for high-efficiency PFC applications. It operates in voltage-mode control with pulse width modulation technology. The device supports a maximum switching frequency of 250 kHz and features an input voltage range from 10 V to 20 V, with a nominal supply of 16 V. Packaged in a lead-free SOIC-16 (PDSO16) format, it integrates enhanced PFC capabilities and standby efficiency features suitable for AC-DC power supplies.

Feature Summary

• Enhanced power factor correction performance with optimized standby efficiency
• Voltage-mode control architecture utilizing pulse width modulation
• Integrated high-voltage start-up circuitry for simplified design

Applications

• AC-DC power supplies requiring high power factor correction
• Consumer electronics power adapters
• Industrial power supply systems

Procurement Notes

Verify the manufacturer part number against official onsemi documentation to ensure authenticity. Confirm that the SOIC-16 package matches project requirements. Check for RoHS compliance status as indicated in the datasheet. Ensure the component is sourced from authorized distributors to avoid counterfeit risks. Validate the specific suffix DR2G corresponds to the reel packaging configuration required.

Selection Notes

Select this component for designs requiring a dedicated PFC controller with voltage-mode operation. Consider the 250 kHz maximum switching frequency when designing magnetic components. Evaluate the 10 V to 20 V input voltage range against the system's auxiliary power supply capabilities. The SOIC-16 package offers a balance between pin count and board space for standard PFC topologies.

Part Context

This part belongs to the NCP1605 series of power factor controllers from onsemi. It is distinct from gate drivers like the NCP3420 or NCP5183, and other PFC variants such as the NCP1601 or NCP1607. The NCP1605 specifically targets applications needing robust PFC performance with integrated features to reduce external component count.

Replacement Considerations

Direct substitutes within the same family include other NCP1605 variants with different packaging or temperature grades. Cross-reference with NCP1601 or NCP1607 only if functional differences in control mode or package are acceptable. Verify pin compatibility and electrical specifications before substitution.