ST STNRG011多模式PFC控制器解决方案
ST公司的STNRG011是多模式PFC控制器,包括用于LLC谐振半桥的高压双端控制器, 800V起动电压发生器以及优化管理三个区块的数字引擎,主要用在开放式开关电源(SMPS),平板TV开关电源,ATX电源和AC/DC适配器.本文介绍了STNRG011主要特性,框图和详细框图,典型应用电路图以及基于STNRG011和SRK2001的12V/150W电源评估板EVLSTNRG011-150主要特性和指标,电路图和材料清单.
The STNRG011 embodies a multi-mode (transition-mode and DCM) PFC controller, a highvoltage double-ended controller for the LLC resonant half-bridge, an 800 V-rated startup generator and a sophisticated digital engine, that manage optimal operation of three blocks.
The device comes in a 20-pin SO package and offers an advanced solution for power factor-corrected high-efficiency converters supposed to comply with the most stringent energy saving regulations.
The power system and the control algorithms are managed by an 8-bit core with dedicated fast peripherals (SMED). Optimized digital algorithms together with HW analog IPs are implemented to guarantee a very high performance, BOM optimization and robustness.
The digital algorithms are stored into an internal ROM memory and all key application
parameters can be stored into a device’s NVM (non-volatile memory) memory during the..
