UCC28501N

Overview

The UCC28501N is a Power Factor Correction (PFC) controller manufactured by Texas Instruments, operating in average current mode. It supports a switching frequency of 100 kHz and functions within an operating supply voltage range of 9.7V to 18V. The device draws a startup current of 150 µA and is housed in a 20-pin PDIP package with through-hole mounting. It operates reliably across a temperature range of -40°C to 85°C.

Feature Summary

• Implements average current mode control for power factor correction applications
• Features low startup current consumption for efficient power management
• Designed for robust operation across extended industrial temperature ranges

Applications

• Power factor pre-regulators
• AC-DC power supplies
• Industrial power conversion systems

Procurement Notes

Verify the component status as discontinued or obsolete before procurement planning. Confirm that the 20-PDIP package remains compatible with existing PCB footprints. Ensure design updates account for end-of-life transitions if long-term production support is required.

Selection Notes

Select this component for designs requiring average current mode PFC control with through-hole packaging. Verify compatibility with the specified 100 kHz switching frequency and 9.7V to 18V supply range. Consider alternative active components if surface-mount solutions are preferred.

Part Context

This part belongs to the UCC2850x series of PFC controllers from Texas Instruments. It shares functional similarities with other members of the family but is distinguished by its specific DIP package and average current mode architecture designed for high-power-factor pre-regulation.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult manufacturer resources for pin-compatible alternatives or updated series replacements.