UCC2817ADR

Overview

The UCC2817ADR 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 is housed in a 16-SOIC package with a width of 3.90 mm. It supports an operating temperature range from -40°C to +85°C.

Feature Summary

• Implements average current mode control for high-performance power factor correction
• Includes zero-power detection capability to minimize standby losses
• Features high peak source and sink drive currents for efficient gate driving

Applications

• Power supplies requiring compliance with energy efficiency regulations
• Adapters and chargers for consumer electronics
• Computer and computer peripheral power supplies

Procurement Notes

Verify the specific suffix 'ADR' against the manufacturer's official datasheet to confirm the tape-and-reel packaging configuration. Ensure the component meets RoHS3 standards as indicated by the base family specifications. Cross-reference the part number with authorized distributors to confirm availability status, as older revisions may be subject to end-of-life notices.

Selection Notes

Select this component for designs requiring average current mode PFC control with a maximum switching frequency of 220 kHz. The 16-SOIC package is suitable for surface-mount assembly. Verify that the application circuit can support the 12 V to 17 V supply voltage range and that the thermal design accommodates the specified operating temperature limits.

Part Context

This device belongs to the UCC2817/18 family of PFC controllers designed for critical conduction mode and continuous conduction mode applications. It is engineered to provide high power factor and low total harmonic distortion. The family shares core control algorithms but varies in pinout and package options to suit different board space and thermal requirements.

Replacement Considerations

The UCC28180DR is listed as a manufacturer-recommended alternative. Verify compatibility regarding pinout, control topology, and package dimensions before substitution.