STMicroelectronics’ STNRG011A digital power combination controller for 90W to 300W power supplies features enhanced overload management that ensures accurate output-voltage regulation when overcurrent protection is active.
Integrating a power-factor correction controller, LLC resonant half-bridge controller, 800V startup circuitry, and supervisory engine, the STNRG011A is used in power adapters, chargers, and television and lighting power supplies. The multi-mode PFC controller implements performance-enhancing features including input-voltage feedforward, a distortion optimizer, and frequency limitation. The digital supervisory engine features an 8-bit core and dedicated peripherals, with digital algorithms stored in internal ROM to ensure reliability and a minimal bill of materials (BoM).