NewsInfineon’s XDPS2201 hybrid flyback controller delivers ultra-high-power density and outstanding efficiency for...

Infineon’s XDPS2201 hybrid flyback controller delivers ultra-high-power density and outstanding efficiency for USB PD charger and adapter applications

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Rapid technology and also market developments in the fast charger and adapter market continuously difficulty designers of power supply systems. To fulfill the raising need for higher power thickness as well as energy efficiency, Infineon Technologies AG (FSE: IFX/ OTCQX: IFNNY) increases its XDP household by including the initial application-specific conventional product based upon an uneven half-bridge flyback topology. Readily available in a DSO-14 SMD package, the XDPS2201 is a very incorporated, multi-mode, digital and also configurable hybrid flyback controller targeting high-density AC-DC power supplies, including USB PD quick charger and adapter applications.

The XDPS2201 integrates the simpleness of a conventional flyback topology with the performance of a resonant converter. This mix permits natural soft switching, which decreases switching losses associated with high switching frequency styles. The controller enables zero voltage switching (ZVS) and zero current switching (ZCS) throughout AC line inputs, lots conditions and also variable output voltages. This attribute is extremely useful for high-frequency designs with a planar transformer that can usually be found in USB PD charger applications.

To attain optimized efficiency under different outcome voltage, load as well as line input conditions, the XDPS2201 comes with a smart, self-adaptive digital algorithm. It supports a multi-mode procedure to guarantee that the best-fitting operation mode for each problem is selected to produce a continually high performance degree. The hybrid flyback controller likewise integrates a detailed suite of defense attributes, including brown-in and -out, dual-level overcurrent, outcome over-voltage, outcome under-voltage and over-temperature discovery.

The asymmetric half-bridge flyback topology enables the implementation of CoolMOS MOSFETs to attain highest system efficiency and also power density. The XDPS2201 is driving both high- and low-side MOSFETs in an asymmetric control fashion. The item includes an incorporated high-side driver that enables BOM cost savings of as much as 20 external elements. The topology enables a snubber-less design and the use of high voltage MOSFETs from 500 V and up. This reduces the number as well as the cost of components.

In an economical fashion, the XDPS2201 supports highest power density designs with an efficiency of up to 93.8 percent and also more than 92 percent on average across different AC line and also load problems.


The XDPS2201 is readily available in a DSO-14 SMD bundle and can be bought now. More details is readily available at The crossbreed flyback controller will be showcased at Infineon’s Virtual Power Conference, which matches “PCIM Europe digital days.”

Michal Pukala
Electronics and Telecommunications engineer with Electro-energetics Master degree graduation. Lightning designer experienced engineer. Currently working in IT industry.