UCC3818AN

Overview

The UCC3818AN is a BiCMOS power factor preregulator controller designed for high-performance AC-DC conversion. It operates with a supply voltage range of 10V to 20V and supports switching frequencies from 6kHz to 220kHz. The device utilizes average current mode control to achieve high power factor correction. It features a 16-pin PDIP package, ensuring robust through-hole mounting capabilities. The operational temperature range extends from 0°C to 70°C, suitable for general industrial applications.

Feature Summary

• Implements average current mode control for precise power factor correction
• Integrates zero-power detection to minimize standby losses
• Supports wide switching frequency adjustment for flexible design optimization

Applications

• High-efficiency AC-DC power supplies
• Power factor correction preregulators
• Industrial power management systems

Procurement Notes

Verify the specific suffix 'AN' indicates the PDIP package variant when sourcing. Confirm active status as legacy parts may have limited availability or require obsolescence checks. Ensure compatibility with existing through-hole assembly processes and verify RoHS compliance status for the specific manufacturing batch.

Selection Notes

Select this component for designs requiring through-hole integration and average current mode PFC. Compare against SOIC variants if board space is constrained. Evaluate thermal performance within the specified operating temperature range. Consider pin count and package dimensions during PCB layout planning.

Part Context

Part of the UCCx81xA series of BiCMOS power factor preregulators from Texas Instruments. This family focuses on high-efficiency AC-DC conversion solutions. The UCC3818AN specifically targets applications needing reliable average current mode control in a durable through-hole package format.

Replacement Considerations

UCC3818AD serves as a direct surface-mount equivalent within the same functional family.