Certification
UCG28846DREVM-151-DOC-CERT — UCG28846DREVM-151 EU Declaration of Conformity (DoC)
UCG28846DREVM-151 EU Declaration of Conformity (DoC)
UCG28846
High frequency flyback converter with integrated GaN FET for up to 65W output power applications
Data sheet
UCG28846
- Integrated 750V GaN HEMT
- Dynamic QR/DCM/CCM modes of operation
- High Power density: Up to 500kHz switching frequency
- Enable low BoM cost by integration
- Remove auxiliary winding with self bias
- Integrated input and output voltage sensing
- Integrated current sense
- Integrated HV start-up
- Integrated X-cap discharge
- High efficiency and low EMI performance
- Ultra-low standby power: <30mW
- Frequency foldback and burst mode
- Valley locking
- Frequency dithering
- Switching slew rate control
- Comprehensive protection features
- Overtemperature protection
- Input and output overvoltage protection
- Short-circuit protection
- Cycle-by-cycle current limit
- Two-level over power protection with LPS
- Brownin and brownout protection
- Open feedback protection
- Flexible configurability through external resistors
- X-cap discharge and CCM mode disable
- Selectable switching slew rate
- Multiple clamping frequency settings
- Fault latch or auto-restart
- Maximum and minimum peak current ratio
UCG2883x/4x is a high frequency, quasi-resonant flyback converter with a built-in 750V GaN high electron mobility transistor (HEMT) with low Rds(on) for AC to DC power conversion. The UCG2883x/4x is designed for high power density applications, such as cell phone fast chargers and notebook adapters. The key feature of this device is the self-bias and auxless sensing scheme which eliminates the need of the auxiliary winding and simplifies the system design with higher efficiency.
The UCG2883x/4x also features intelligent mode transition (CCM/QR/DCM) to enable high efficiency across a wide power range and <30mW standby power consumption. In addition, UCG2883x/4x includes a full list of protections such as brownin and brownout protection, SCP, OVP, OPP, LPS, OFB, and OTP. The cycle-by-cycle current limit allows for fast response to the fault conditions to safeguard the system and improve the reliability. In a small 5mm × 5mm package, the UCG2883x/4x 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.
Technical documentation
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View all 1 | Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | UCG2883x/4x Self-Biased High Frequency QR Flyback Converter With Integrated GaN datasheet (Rev. B) | PDF | HTML | 09 Apr 2026 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| SOIC (D) | 16 | Ultra Librarian |
Ordering & quality
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