Accelerating the development of adapters for industrial equipment such as LED lighting and medical equipment

STMicroelectronics (ST) has released the STNRG011 digital power controller, which simplifies and accelerates the development of 90W to 300W power supplies and adapters used in computers, LED lighting, medical equipment, communications, and industrial equipment, as well as meeting the latest and most stringent eco-friendly design standards.

The STNRG011 integrates a double-ended LLC resonant half-bridge controller and a multi-mode Power-Factor Correction (PFC) controller, managed by a digital core executing state-of-the-art control algorithms. Integrated digital peripherals, utilizing ST’s State Machine Event Driven (SMED) technology and unique analog hardware, accelerate control loop performance for superior dynamic response. Additionally, non-volatile memory capable of storing application-specific parameters is provided on-chip.

The digital control and user programming capabilities of the STNRG011 enable engineers to optimize efficiency and performance across a wide load range and maximize efficiency by utilizing burst-mode operation under light loads. A 2-pin UART/I2C port allows a host system to monitor and manage the power supply.

Additional integrated features include LLC and PFC gate drivers, as well as high-voltage (800V) startup circuits and line detection capabilities, which can further simplify the design, improve reliability and robustness, and reduce solution size and material costs. In addition, it is equipped with an X-capacitor discharge circuit that can easily support the new IEC 62368-1 safety standard for audio-visual and ICT equipment that continues to apply the 60950 and 60065 standards in the US and EU.

In addition, STNRG011 integrates a wide range of protection functions for LLC and PFC circuits, including overvoltage, overcurrent, undervoltage, surge, feedback-disconnection, anti-capacitive protection, power saving protection, and soft-start.