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ST-ONEMP Datasheet(PDF) 1 Page - STMicroelectronics |
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ST-ONEMP Datasheet(HTML) 1 Page - STMicroelectronics |
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1 / 39 page  Features • ZVS non-complementary active clamp flyback controller with synchronous rectification and USB-PD 3.1 PPS interface • ARM® 32-bit Cortex®-M0+ MCU with 64 kB flash memory for digital power control and USB protocol – FW programmable secondary side MCU controls both synchronous rectifier and ZVS active clamp flyback on the primary side to improve system efficiency in every condition – High switching frequency operations in companion with MasterGaN power stage allow to use small size magnetic components, including planar transformers • Reinforced galvanically isolated dual communication channel compliant with IEC 62368-1: – 4 kV pk transient voltage – 9.6 kV pk 1min hipot type testing – 6.4 kV pk 1s hipot production testing • 800 V high voltage startup with integrated input voltage sensing and Brown- in/out functions • Active input filter capacitor discharge circuitry for reduced standby power compliant with IEC 62368-1 • Fully Integrated USB-PD PHY with 24 V tolerant protection, and integrated load switch driver Application • USB-PD chargers and adapters up to 100 W for smartphones, tablets, laptops and other handheld equipment Description The ST-ONEMP 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 a first USB-PD interface and a second output. The device includes an active clamp flyback controller and its HV startup 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 The device is delivered with a pre-loaded firmware which handles both the power conversion and the communication protocols for USB-PD including optional PPS and electronically marked cable management. The output power and available PDOs on the USB-PD port can be changed according to a power sharing pin input to allow power sharing with a second output. A dedicated memory stores a default device configuration during factory process. The user can change or adapt this memory area to fit the final product specifications. Product status link ST-ONEMP Product label Figure 1. Typical system block diagram VBUS VINAC TYPE-C USB ST-ONEMP VOUT2 2nd PORT CTRL Fully integrated controller for multiport smart chargers ST-ONEMP Datasheet DS13989 - Rev 2 - February 2023 For further information contact your local STMicroelectronics sales office. www.st.com |
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