UCC2817DW

Overview

The UCC2817DW is a BiCMOS power factor preregulator controller manufactured by Texas Instruments. It operates within a supply voltage range of 12 V to 17 V and supports switching frequencies from 6 kHz to 220 kHz. The device features an operating temperature range of -40°C to +85°C and utilizes a 16-pin SOIC surface-mount package. Key electrical characteristics include a maximum source current of 1.2 A, a maximum supply current of 6 mA, and a startup supply current of 150 µA.

Feature Summary

• Implements average current mode control for power factor correction applications
• Integrates zero-power detection functionality
• Supports variable frequency operation across a wide range

Applications

• Power factor preregulator designs
• Average current mode PFC systems

Procurement Notes

Verify the specific suffix against official documentation to confirm package type and environmental compliance. Confirm RoHS status through manufacturer datasheets. Ensure the component matches the required pinout and thermal specifications for the target application before procurement.

Selection Notes

Select this component for applications requiring average current mode PFC control with a maximum switching frequency of 220 kHz. It is suitable for designs needing a 16-pin SOIC package and operation up to 17 V supply voltage. Verify that the 1.2 A source current capability meets the gate drive requirements of the intended power stage.

Part Context

This part belongs to the UCC2817 series of power factor correction controllers. It is categorized under PMIC and specifically designed for AC-DC conversion stages requiring power factor improvement. The device serves as a preregulator solution in power supply architectures.

Replacement Considerations

The UCC2817DG4 is listed as an alternative part number alias for this component.