EVLSTRNG-170W 170 W SMPS with digitally controlled PFC and resonant LLC stage based on the STNRG388A Data brief Description The EVLSTNRG-170W evaluation board is intended for evaluating the STNRG388A digital controller in off-line power conversion applications such as digital industrial power supplies. The solution implements a PFC stage followed by a resonant LLC stage supporting up to 170 W. The application supports multiple output rails: a high power 24 V (6 A) channel for the main application, 1 auxiliary 12 V (2 A) for the controller and an always-on 5 V (2 A) standby. (9/6751* : The STNRG388A power conversion dedicated peripherals (SMEDs) offer the flexibility to drive the PFC in transition mode (DCM-CCM boundary) Features while the resonant LLC is controlled with timeshift Digital controller: STNRG388A control (TSC). In parallel to managing the two conversion stages, STNRG388A guarantees all Enhanced constant ON Time PFC the protections required by the application as well Timeshift controlled LLC as implementing the advanced Anti Capacitive Max. power: 170 W protection. Efficiency: more than 91% at full load Thanks to the digital core of STNRG388A, it is also possible to monitor, control and debug the Standby consumption: <150 mW with 50 mW EVLSTNRG-170W board via a convenient secondary side load HyperTerminal control. Input voltage range: from 90 to 264 Vdc Multiple output rails: 24 V (6 A), 12 V (2 A), 5 V (2 A) Modular power and control board May 2015 DocID027881 Rev 1 1/10 For further information contact your local STMicroelectronics sales office. www.st.com Schematic diagrams EVLSTRNG-170W 1 Schematic diagrams Figure 1. Electrical main board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ocID027881 Rev 1