전력 관리 AC/DC 스위칭 레귤레이터 AC/DC 컨버터

UCG28846

활성

최대 65W 출력 전원 애플리케이션을 위한 GaN FET가 통합된 고주파 플라이백 컨버터

제품 상세 정보

Topology Flyback Switch current limit (typ) (A) 3.5 Features Adjustable current limit, Auxless-sense, High-voltage startup, Integrated GaN FET, Overcurrent protection, Overtemperature protection, Overvoltage protection, Self-bias, Short circuit protection, USB C/PD compatible, Undervoltage protection, X-cap discharge EMI features Frequency Dithering, Switching slew rate control, Valley hopping Control mode Peak current mode Switching frequency (min) (kHz) 25 Switching frequency (max) (kHz) 500 Operating temperature range (°C) -40 to 105 Type Converter (Integrated Switch)
Topology Flyback Switch current limit (typ) (A) 3.5 Features Adjustable current limit, Auxless-sense, High-voltage startup, Integrated GaN FET, Overcurrent protection, Overtemperature protection, Overvoltage protection, Self-bias, Short circuit protection, USB C/PD compatible, Undervoltage protection, X-cap discharge EMI features Frequency Dithering, Switching slew rate control, Valley hopping Control mode Peak current mode Switching frequency (min) (kHz) 25 Switching frequency (max) (kHz) 500 Operating temperature range (°C) -40 to 105 Type Converter (Integrated Switch)
SOIC (D) 16 59.4 mm² 9.9 x 6
  • 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
  • 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.

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.

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기술 자료

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상위 문서 유형 직함 형식 옵션 날짜
* Data sheet UCG2883x/4x Self-Biased High Frequency QR Flyback Converter With Integrated GaN datasheet (Rev. B) PDF | HTML 2026/04/09

설계 및 개발

추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.

평가 보드

UCG28846DREVM-151 — UCG28846 평가 모듈

UCG28846DREVM-151는 AC/DC 어댑터, 충전기, USB 벽면 콘센트 및 기타 애플리케이션용 오프라인 GaN 통합 반공진 플라이백 컨버터를 평가하기 위한 65W USB-C PD 평가 모듈(EVM)입니다. 이 EVM은 CoC 티어 2 및 DoE 레벨 6 효율 요구 사항을 충족합니다. 이 EVM은 평가용으로 제작된 것이며, 완제품으로 사용하기 위한 것은 아닙니다. UCG28846DREVM-151는 90VRMS~264VRMS의 입력 전압을 5VDC, 9VDC, 15VDC 또는 20VDC의 선택 가능한 USB-C PD 출력 (...)
사용 설명서: PDF | HTML
인증

UCG28846DREVM-151-DOC-CERT UCG28846DREVM-151 EU Declaration of Conformity (DoC)

UCG28846DREVM-151 EU Declaration of Conformity (DoC)
지원되는 제품 및 하드웨어

지원되는 제품 및 하드웨어

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SOIC (D) 16 Ultra Librarian

주문 및 품질

포함된 정보:
  • RoHS
  • REACH
  • 디바이스 마킹
  • 납 마감/볼 재질
  • MSL 등급/피크 리플로우
  • MTBF/FIT 예측
  • 물질 성분
  • 인증 요약
  • 지속적인 신뢰성 모니터링
포함된 정보:
  • 팹 위치
  • 조립 위치

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