ST-ONETR

ST-ONE is the world’s first digital controller embedding ARM Cortex M0+ core, an offline programmable controller with synchronous rectification, and USB PD PHY in a single package. Such a system is specifically designed to control ZVS non-complementary active clamp flyback converters to create high power density chargers and adapters with USB-PD interface. The device includes an active clamp flyback controller and its HV start-up on the primary side, a microcontroller and all the peripherals required to control the conversion and the USB-PD communication on the secondary side. The two sides are connected through an embedded galvanically isolated dual communication channel. By using a novel non-complementary control technique and specifically designed power modes the device allows to reach both high efficiency and low no load power consumption. Used in USB-PD chargers and adapters up to 100W for smartphones, tablets, laptops and other handheld equipment.

• ZVS non-complementary active clamp flyback controller with synchronous rectification, USB-PD 3.1PPS
• ARM® 32bit Cortex®-M0+ MCU with 64 kB flash memory for digital power control and USB protocol
• Reinforced galvanically isolated dual communication channel compliant with IEC 62368
• 800V high voltage start-up with integrated input voltage sensing and Brown in/out functions
• Active input filter capacitor discharge circuit for reduced standby power compliant with IEC62368-1
• Fully Integrated USB-PD PHY with 24 V tolerant protection and integrated load switch driver