For high-efficiency charging applications: 170 W AC-DC reference design with XDP™ digital power XDPS2201 hybrid-flyback controller

Infineon’s REF_XDPS2201_170W_BPA is a 170 W single-stage hybrid-flyback reference design aimed for 24 V and 36 V Li-Ion battery packs typically found in chargers for e-bikes or power tools. The design incorporates a digital controller, XDP™ XDPS2201, with multi-mode operation and two 600 V CoolMOS™ P7 superjunction MOSFETs (IPA60R280P7S) that combine excellent efficiency and ease of use.

Key features

  • Topology: Hybrid flyback (asymmetric half-bridge)
  • Input:
    • VIN = 198 – 264 VAC, 50..60 Hz
    • Standby < 250 mW @ 230 V at no load
  •  Output:
    • VOUT = 18…42 V, Iout = 0.4…4.0 A CC, POUT = 170 W
    • VAUX = 5 V / 500 mA
  • Efficiency: >95% @230 VAC at full load

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Key benefits

  • No PFC, low system cost
  • Simple transformer design compared to resonant converter
  • Wide output voltage range
  • High efficiency