TEA9026T Datasheet | NXP Semiconductors

description The TEA9026T is a digital LLC resonant mode controller for resonant power supplies with a wide input voltage range. The power supply is easy to design and has a very low ponent count. It meets the efficiency regulations of Energy Star, the Department of Energy (Do E), the Eco-design directive of the European Union, the European Code of Conduct, and other guidelines. So, no auxiliary low-power supply is required. To increase the efficiency of a low-voltage supply output, the TEA2095T dual SR controller can be added on the secondary side. In contrast to traditional resonant topologies, the TEA9026T (LLC) achieves a high efficiency at low loads due to the newly introduced low-power mode. This mode operates in the power region between continuous switching (also called high-power mode) and burst mode. Because the TEA9026T is regulated via the primary capacitor voltage, it has accurate information about the power delivered to the output. The measured output power defines the mode of operation (burst mode, low-power mode, or high-power mode). With a single configuration pin, the transition levels of the operating modes can be easily set. The TEA9026T contains a low-voltage die with a fully digital controller for output power control, start-up, initializations, and protections. These protections include overcurrent protection (OCP), overvoltage protection (OVP), open-loop protection (OLP), and capacitive mode regulation (CMR). The TEA9026T also contains a high-voltage siliconon-insulator (SOI) controller for high-voltage start-up, integrated drivers, level shifter, protections, and circuitry assuring zero-voltage switching. The TEA9026T LLC controller enables the building of an easy to design, highly efficient, and reliable power supply. The power supply can provide 90 W to 500 W output power with a minimum of external ponents. It has a very low no-load input power (< 90 m W) and a high efficiency from minimum to maximum load. So, no additional low-power supply...