Texas Instruments (TI) introduced a new inductor-inductor-capacitor (LLC) resonant controller with an integrated high-voltage gate driver that enables the industry's lowest standby power, as well as longer system lifetimes.
The UCC256301 provides a cost-effective system solution that helps meet stringent energy-efficiency standards for a wide range of AC/DC applications, including digital televisions, gaming adapters, desktop computer and notebook adapters, and power-tool battery chargers.
The first in a family of new high-performance LLC controllers, the UCC256301 enables standby power of less than 40 mW when fully regulating the system output, while also performing better than industry efficiency requirements. By delivering the fastest transient response plus robust fault-protection features such as zero current switching avoidance, the device enables reliable operation over end-equipment lifetimes.
The UCC256301 is the latest addition to TI's high-voltage portfolio of end-to-end power-conversion solutions delivering high efficiency. In addition to the UCC256301, the new portfolio of LLC controllers includes the UCC256303, which works easily with an external bias, and the UCC256304, which supports wide input ranges.
Engineers can pair the UCC256301 with a TI power factor correction (PFC) controller and synchronous rectifier (SR) controller to increase system efficiency. To meet a variety of power levels, PFC controllers include the UCC28180, UCC28063, UCC28051 and UCC28070. The UCC24610 SR controller can also be paired with the UCC256301 to further improve efficiency.
Support tools for the UCC256301 to speed engineers' time to market include the UCC25630-1EVM-291 evaluation module, WEBENCH Power Designer and SIMPLIS transient models. Engineers can jump-start high-voltage system designs using the UCC256301 with the 480W AC/DC Industrial Reference Design and 450W AC/DC Reference Design with Single-Layer PCB.
The UCC256301 is now available in the TI store and through the company's authorized distribution network. This LLC controller comes in a small-outline integrated circuit (SOIC)-16 package and is priced at US$0.99 in 1,000-unit quantities.
