Demoboard EVLSTNRG-1KW

1 kW SMPS digitally controlled multiphase interleaved converter using STNRG388A

Topologie: Half-Bridge
Eingangsspannung (min.): 350.00 V
Eingangsspannung (max.): 420.00 V
Ausgang 1: 133.00 V / 7.500 A

Erstveröffentlichung am 12.05.2015, Version 1 vom


The EVLSTRNG-1KW evaluation board is intended for evaluating the STNRG388A digital controller in offline power conversion applications such as EV battery chargers, UPS and industrial power supplies.The architecture is based on a multiphase interleaved DC/DC converter using the half bridge SAB (“Single Active Bridge”) topology supporting more than 1000 W of power.The interleaved topology balances the power through 3 parallel stages. Also, the solution delivers high efficiency during the whole load range by enabling one, two or three stages depending on the load.The STNRG388A power conversion dedicated peripherals (SMEDs) offer the flexibility to drive the interleaved power stages while guaranteeing the correct phase realignment during the activation and deactivation of each stage.Thanks to the digital core of the STNRG388A, it is also possible to monitor, control and debug the EVLSTRNG-1KW board via a convenient HyperTerminal control.


  • Digital controller: STNRG388A
  • 3-phase interleaved DC/DC architecture
  • Full load power: 1000 W (scalable up to 3 kW)
  • Efficiency: more than 94% from 10% to full load
  • Peak efficiency: 96.5% at full load
  • Stand-by consumption: 425 mW
  • Input voltage range: 350  420 V dc
  • CC/CV output regulation
  • Output voltage regulation: 133 V
  • Output current regulation: 7.5 A
  • Maximum output current for each phase: 2.5 A
  • Modular power and control board


  Artikel Nr. SPEC Produktserie Z @ 100 MHz
TC Zmax IR 2
RDC max.
Typ Muster
74279262 PDF WE-CBF SMT-Ferrit 120 200 510 MHz 1350 0.3 Wide Band