Steve Lambouses, vice president of high-voltage power solutions at Texas Instruments, said that the number of electronic products in the world today is increasing, and that these products will consume power even when they are not used, for example, the current standby power of household appliances Accounting for 12 to 18 percent of the total household energy consumption, but in fact, these power consumption is unnecessary, and because of this, consumer electronics market demand for low standby power, efficient power supply program is very ardent.
As a product of the first new high-performance LLC controller family, the UCC256301 provides standby power of less than 40mW when the system is fully regulated, allowing designers to perform more operations with less power. Standby power, the LLC controller goes beyond the second phase of the Code of Conduct (CoC) and the US Department of Energy's six-level performance standards, and is still more than 90 percent more efficient at 10 percent load.
In addition, this LLC controller also has a sound fault protection, such as zero current switch to avoid, to help the terminal equipment to extend system life. At the same time, it also uses TI a new patent control method - mixed hysteresis control , To achieve faster, more stable system transient performance, and the output capacitor by 20%, thereby speeding up the system response time.
Lambouses points out that the standby power of the LLC controller is one-third to one-half of the other competing products on the market, and TI's ability to achieve such high-performance standby power is made up of a number of technologies, including IC designs , System solution design, wafer process design.
In addition, in the field of LLC controllers, other competitors are mostly based on the microcontroller (MCU) -based solution, it must be built-in frequency (Clock), prone to power loss (Power Loss). But Texas Instruments LLC control The device is not based on the MCU and therefore has a considerable advantage in dealing with loss issues. This advantage allows the LLC controller to quickly turn on AC / DC applications with transient response without consuming excessive standby power In applications, the LLC controller's transient response speed can be 10 times higher than the competitor.