UCG28826
- Integrated 700V GaN with 170mΩ Rds(on)
- Dynamic QR/DCM/CCM modes of operation
- Support up to 500kHz switching frequency
- Enable low BoM cost by integration
- Remove auxiliary winding with self bias
- Integrated input/output voltage sensing
- Integrated current sense
- Integrated HV startup
- 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
- Over Temperature Protection
- Over Voltage Protection
- Short Circuit Protection
- Cycle-by-cycle current limit
- Two-Level Over Power Protection with LPS
- Brown-in/out Protection
- Open feedback protection
- Flexible configurability via external resistors
- X-cap discharge and CCM mode disable
- Selectable switching slew rate
- Multiple clamping frequency settings
- Fault latch or auto-restart
- Max/min peak current ratio
- Dithering amplitude
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.
기술 자료
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | UCG28826 Self-biased High Frequency QR Flyback Converter with Integrated GaN datasheet | PDF | HTML | 2023/09/12 |
| Technical article | 보조 GaN 플라이백 컨버터가 AC/DC 어댑터 설계 과제를 해결하는 방법 | PDF | HTML | 2024/10/30 | |
| EVM User's guide | Using the UCG28826EVM-093 65-W USB-C PD High-Density Quasi-Resonant flyback controller | PDF | HTML | 2024/09/06 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
UCG28826EVM-093 — UCG28826 평가 모듈
UCG28826EVM-093은 AC/DC 어댑터, 충전기, USB 벽면 콘센트 및 기타 애플리케이션을 위한 오프라인 GaN 통합 반공진 플라이백 어댑터를 평가하기 위한 65W USB-C® PD 평가 모듈(EVM)입니다. EVM은 CoC 티어 2 및 DoE 레벨 6 효율 및 대기 전력 요구 사항을 충족합니다. EVM은 평가 목적으로만 사용되며, 최종 제품이 아닙니다. UCG28826EVM-093은 90VRMS~264VRMS의 입력 전압을 최대 3.25A, 최대 3.00A 출력 전류 정격을 지원하는 5VDC, 9VDC 및 15VDC의 (...)
PMP41145 — GaN 레퍼런스 디자인이 통합된 범용 AC 입력, 65W, 20V 3.25A 플라이백
PMP41117 — GaN이 통합된 범용 AC 입력 65W 듀얼 USB Type-C® 포트 USB PD 충전기 레퍼런스 설계
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| VQFN (REZ) | 12 | Ultra Librarian |
주문 및 품질
- RoHS
- REACH
- 디바이스 마킹
- 납 마감/볼 재질
- MSL 등급/피크 리플로우
- MTBF/FIT 예측
- 물질 성분
- 인증 요약
- 지속적인 신뢰성 모니터링
- 팹 위치
- 조립 위치