The image is for illustrative purposes only; please refer to the product data sheet for precise specifications.
| Part Number | UCC28070APWR |
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| Manufacturer |
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| Description | The UCC28070APWR is a high-performance two-phase interleaved power factor correction (PFC) controller developed by Texas Instruments, designed for high-power AC-DC conversion systems requiring improved efficiency and reduced harmonic distortion. It is optimized for continuous conduction mode (CCM) boost PFC applications, commonly used in power supplies above several hundred watts. This controller integrates dual PWM channels operating 180° out of phase, enabling interleaved operation that significantly reduces input and output ripple currents while simplifying EMI filtering requirements. It uses an average current-mode control architecture with inherent current balancing between phases for stable and efficient operation. The UCC28070APWR supports a programmable switching frequency typically from 30kHz up to 300kHz, allowing designers to optimize system efficiency and component size. It also includes advanced features such as frequency dithering for EMI reduction, programmable soft-start, duty-cycle clamp, and peak current limiting for flexible and reliable system design. The device incorporates a highly linear multiplier with voltage feed-forward control, enabling near-unity power factor and low total harmonic distortion (THD), which is critical for compliance with energy efficiency standards. Its internal architecture also improves transient response and overall system stability. Designed for demanding power applications, the controller includes multiple protection mechanisms such as undervoltage lockout (UVLO), output overvoltage protection, open-loop detection, and input sensing fault detection, ensuring safe and reliable operation in industrial environments. Encapsulated in a compact 20-pin TSSOP surface-mount package, the UCC28070APWR is suitable for high-density PCB layouts while maintaining strong electrical performance and thermal efficiency. The UCC28070APWR is widely used in server power supplies, telecom power systems, industrial AC-DC converters, LED drivers, and high-power SMPS designs, where high efficiency, low EMI, and reliable power factor correction are essential. |
| Product Group | Power Switch |
| MOQ | 2000 pcs |
| SPQ | 2000 pcs |
| Figure/Case | TSSOP-20 |
| Package | T&R Pack |
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| Ship From | Hong Kong |
| Shipment Way | DHL / Fedex / TNT / UPS / Others |
| Delivery Term | Ex-Works |
| Send RFQ | sales@signalhk.com |
Room 1304, 13/F, Allways Centre, 468 Jaffe Road, Causeway Bay, Hong Kong. |