UCC2817N

Overview

The UCC2817N is a Power Factor Correction (PFC) controller utilizing average current mode control. It operates within a switching frequency range of 6 kHz to 220 kHz and requires a supply voltage between 12 V and 17 V. The device features a low start-up current of 150 µA and supports through-hole installation in a 16-PDIP package. Designed for industrial temperature ranges, it functions reliably from -40°C to +85°C.

Feature Summary

• Implements average current mode control for high-performance power factor correction
• Includes integrated zero-power detection capability
• Supports wide switching frequency adjustment via external components

Applications

• Power factor preregulators
• Offline power supplies
• Industrial power systems

Procurement Notes

Verify component authenticity due to End-of-Life status. Confirm package integrity upon receipt. Validate datasheet revisions against specific manufacturing lot codes. Ensure compatibility with existing thermal management designs.

Selection Notes

Evaluate the transition to surface-mount alternatives like the UCC2817D if PCB space is constrained. Consider the UCC28180 series for updated critical conduction mode requirements. Assess long-term availability risks associated with discontinued through-hole packages.

Part Context

Part of the UCC2817/18 family designed for biCMOS PFC applications. Shares functional architecture with SOIC variants but utilizes a distinct through-hole package configuration suitable for legacy or high-reliability mounting requirements.

Replacement Considerations

UCC28180DR is a manufacturer-recommended alternative.