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Reading: First PFC and hybrid flyback combo IC for mobile and battery-powered devices by Infineon
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e-power Journal > News > Focus > Power Supplies/Energy Storage > First PFC and hybrid flyback combo IC for mobile and battery-powered devices by Infineon
NewsPower Supplies/Energy Storage

First PFC and hybrid flyback combo IC for mobile and battery-powered devices by Infineon

Giovanni Di Maria
Giovanni Di Maria November 28, 2022
Updated 2022/11/28 at 4:48 PM
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The innovative XDP digital power XDPS2221 has been unveiled by Infineon Technologies AG. High power designs are supported in a variety of input and output voltage applications using this highly integrated combination controller IC for USB-PD up to a 28V output voltage. The device combines an asymmetrical half-bridge (AHB), commonly known as an AC/DC PFC controller, with a DC-DC HFB in a single package. The coordinated operation of the two phases makes it simple to satisfy regulatory requirements. Additionally, a reduced external BOM and component count are made possible by the further integration of all gate drivers, a 600V high voltage start-up cell for the first IC voltage supply, and the approved active X-capacitor discharge. With GaN-based devices and a revolutionary ZVS HFB architecture, it offers class-leading efficiency under a variety of line/load circumstances. System designs utilising the device may achieve extremely high power densities due to these characteristics and intrinsic topology advantages, such as zero voltage switching and resonant energy transfer for reducing transformer size.

For the lowest possible no-load input standby power performance, the new combination IC by Infineon also offers synchronous PFC and HFB burst mode operation. To increase average and light load efficiency, the quasi-resonant multimode PFC stage has been enhanced with automated PFC enable/disable capabilities and adaptive PFC bus voltage regulation. To accommodate the use case with any external PFC Controller, the inbuilt PFC function can optionally be deactivated. Peak current control operation is used by the hybrid flyback stage for reliable regulation and quick dynamic load response. The hybrid flyback includes ZVS pulse insertion and body diode cross-conduction prevention in discontinuous conduction mode to offer ZVS functioning under all circumstances. To enhance system performance, the device also provides simple-to-configure settings using a GUI.

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TAGGED: battery, flyback, hybrid
Giovanni Di Maria November 28, 2022
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