LLC controller provides ultra-fast transient response and robust fault protection

Texas Instruments offers a new LLC resonant controller with an integrated high-voltage gate driver that enables what is claimed to be 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 device enables standby power of less than 40mW 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 consumer electronics market demands efficient power supplies with low standby power. With this new family of LLC controllers, TI is enabling designers to do more with less power,” said Steve Lambouses, TI vice president, High Voltage Power. “The UCC256301 was designed to meet tomorrow’s power requirements by delivering breakthroughs in standby power and efficiency while simplifying design and lowering system cost.”