UCC38500DWTR

Overview

The UCC38500DWTR is a BiCMOS PFC/PWM combination controller designed for average current mode power factor correction. It integrates a PFC controller and a PWM controller in a single package, operating at a switching frequency of 100 kHz. The device features a supply voltage range of 12 V to 18 V with a 12 V lockout threshold. It supports 100% duty cycle operation and is housed in a 20-pin SOIC package.

Feature Summary

• Integrates PFC and PWM controllers for combined power management
• Supports average current mode control for improved performance
• Features 12 V lockout protection for reliable startup

Applications

• Power factor correction pre-regulators
• Average current mode PFC designs
• Combined PFC and PWM power supply systems

Procurement Notes

Verify the exact part number suffix against official Texas Instruments documentation to confirm package type and temperature range. Ensure compatibility with your system's voltage requirements, specifically the 12 V to 18 V supply range. Confirm RoHS compliance status through the manufacturer's datasheet before procurement.

Selection Notes

Select this component when a combined PFC and PWM solution is required to reduce board space and complexity. It is suitable for applications needing average current mode control at 100 kHz. Ensure the design accommodates the 20-pin SOIC footprint and the specified supply voltage constraints.

Part Context

The UCC38500 series belongs to Texas Instruments' portfolio of BiCMOS power management ICs. These devices are engineered for high-efficiency power conversion applications, combining multiple control functions into a single integrated circuit to simplify design and improve system reliability.

Replacement Considerations

Public confirmed substitute part numbers: UCC28500DWTR.