UCC28513N

Overview

The UCC28513N is an advanced Power Factor Correction and Pulse Width Modulation combination controller manufactured by Texas Instruments. Designed for offline power supplies, it integrates control functions for both PFC and PWM stages into a single device to meet IEC1000-3-2 harmonic requirements. The component supports average current mode control for the PFC stage and peak current mode for the PWM stage. It features a 20-pin PDIP package and operates within a temperature range of -40°C to +105°C.

Feature Summary

• Integrates PFC and PWM control in a single device for significant performance and cost advantages
• Utilizes leading-edge PFC and trailing-edge PWM modulation to minimize boost capacitor ripple current
• Provides built-in sequencing logic for power-up transitions between PFC and PWM stages
• Features high linear multiplier for near unity power factor with input voltage feedforward

Applications

• Offline power supplies requiring compliance with IEC1000-3-2 harmonic standards
• Systems needing combined PFC and PWM control functionality in a compact form factor
• Applications requiring minimized boost capacitor ripple current through specific modulation techniques

Procurement Notes

Verify component authenticity and datasheet revisions upon ordering. Confirm package type availability as manufacturing sources may vary. Check for end-of-life status or discontinuance notifications prior to final design implementation. Ensure supply chain stability for long-term production needs.

Selection Notes

Select this component when a unified solution for PFC and PWM control is required to reduce system complexity. Consider its capability for minimizing ripple current and meeting specific harmonic regulations. Evaluate the need for integrated sequencing and programmable soft-start features against alternative discrete solutions.

Part Context

This part belongs to the UCC28510 series of advanced PFC/PWM combination controllers. It is designed to provide complete control functions for offline power applications. The series offers benefits such as reduced component count and improved transient response compared to separate controller implementations.

Replacement Considerations

Consult official substitution lists for verified alternatives. Verify pinout compatibility and electrical parameter alignment before replacing. Ensure thermal and mechanical constraints are met by any substitute components.