The UCC28951 controller is an enhanced version of the UCC28950. It is a fully compatible drop-in replacement for the UCC28950. The UCC28951 uses advanced control of the full-bridge in addition to active control of the synchronous rectifier (SR) output stage.
Programmable delays ensure ZVS operation over a wide range of operating conditions, while the load current naturally tunes the switching delays of the secondary-side synchronous rectifiers(SR). This functionality maximizes overall system efficiency.
The 24-pin, TSSOP package complies with RoHS requirements.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | UCC28951 Phase-Shifted Full-Bridge Controller for Wide-Input Voltage Range Applications datasheet (Rev. A) | PDF | HTML | 07 Dec 2021 |
| Application note | UCC28950 600W Phase Shifted Full Bridge Design Review/Application Report (Rev. D) | PDF | HTML | 04 Mar 2022 | |
| Application note | Making the Correct Choice: UCC28950-Q1 or UCC28951-Q1 | 13 Nov 2017 | ||
| EVM User's guide | Using the UCC27714EVM-551 for Evaluating the UCC28951-Q1 | 06 Oct 2016 | ||
| More literature | Design review of a 2-kW parallelable power supply module | 17 Aug 2016 | ||
| More literature | Design review of a 2-kW parallelable power supply module (PPT) | 17 Aug 2016 |
For additional terms or required resources, click any title below to view the detail page where available.
This 600W EVM was designed to demonstrate how the UCC28950 control IC, UCC27524A and UCC27714 gate drivers could be used in a phase shifted full bridge converter that achieves ZVS from 50 to 100% load.
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| TSSOP (PW) | 24 | Ultra Librarian |
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