UCG28826 is a high frequency, quasi-resonant flyback converter with built-in 170mΩ GaN high electron mobility transistor (HEMT) to convert AC to DC for up to 65W power converters. It is best suited for high power density applications such as cell phone fast chargers and laptop adapters. The key feature of this device is the self-bias and auxless sensing scheme which completely eliminates the need of the auxiliary winding and simplifies the system design with higher efficiency.
This device also features intelligent mode transition (CCM/QR/DCM) to enable high efficiency across wide power range and <30mW standby power consumption. In addition, UCG28826 includes a full list of protections such as brown-in/out protection, SCP, OVP, OLP, OFB and OTP. The cycle-by-cycle current limit ensures fast response to the fault conditions to safeguard the system and improve the reliability. The Input feedforward and output voltage based OLP correction are implemented to meet LPS requirements. Furthermore, the UCG28826 has dedicated configuration pins to offer more flexibility. Only resistors are needed to tune certain parameters for each system, enabling a platform design with a single device.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | UCG28826 Self-biased High Frequency QR Flyback Converter with Integrated GaN datasheet | PDF | HTML | 12 Sep 2023 |
| Technical article | 無輔助 GaN 返馳式轉換器如何解決 AC/DC 變壓器設計挑戰 | PDF | HTML | 30 Oct 2024 | |
| Technical article | 보조 GaN 플라이백 컨버터가 AC/DC 어댑터 설계 과제를 해결하는 방법 | PDF | HTML | 30 Oct 2024 | |
| Technical article | How an auxless GaN flyback converter can solve AC/DC adapter design challenges | PDF | HTML | 15 Oct 2024 | |
| EVM User's guide | Using the UCG28826EVM-093 65-W USB-C PD High-Density Quasi-Resonant flyback controller | PDF | HTML | 06 Sep 2024 |
For additional terms or required resources, click any title below to view the detail page where available.
The UCG28826EVM-093 is a 65W USB-C® PD evaluation module (EVM) for evaluating an off-line GaN integrated quasi-resonant flyback adapter for AC/DC adapters, chargers, USB wall outlets, and other applications. The EVM meets CoC Tier two and DoE Level six efficiency requirements. The EVM is intended (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| VQFN (REZ) | 12 | Ultra Librarian |
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