홈 전원 관리 AC/DC 및 DC/DC 컨트롤러(외장 FET)
홈
전원 관리
AC/DC 및 DC/DC 컨트롤러(외장 FET)

UCC28722

활성

양극 전력 디바이스를 위해 1차측 조정을 사용하는 저비용의 CVCC 플라이백 컨트롤러

지금 주문
데이터 시트

UCC28722

활성
데이터 시트 지금 주문

제품 상세 정보

Operating temperature range (°C) -40 to 125 Control mode Primary-side regulation Topology Buck, Flyback Rating Catalog Features CC/CV output regulation, Cable compensation, DCM, Low power, Overcurrent protection, Primary-side regulated, Quasi-Resonant, Soft start Duty cycle (max) (%) 99
Operating temperature range (°C) -40 to 125 Control mode Primary-side regulation Topology Buck, Flyback Rating Catalog Features CC/CV output regulation, Cable compensation, DCM, Low power, Overcurrent protection, Primary-side regulated, Quasi-Resonant, Soft start Duty cycle (max) (%) 99
SOT-23 (DBV) 6 8.12 mm² 2.9 x 2.8
  • < 50-mW No-Load Power
  • Primary-Side Regulation (PSR) Eliminates Opto-
    Coupler
  • Dynamic BJT Drive
  • ± 5% Voltage and Current Regulation Across Line
    and Load
  • 80-kHz Maximum Switching Frequency Enables
    High-Power Density Charger Designs
  • Quasi-Resonant Valley-Switching Operation for
    Highest Overall Efficiency
  • Wide VDD Range Allows Small Bias Capacitor
  • Output Overvoltage, Low-Line, and Overcurrent
    Protection Functions
  • Programmable Cable Compensation
  • SOT23-6 Package
  • < 50-mW No-Load Power
  • Primary-Side Regulation (PSR) Eliminates Opto-
    Coupler
  • Dynamic BJT Drive
  • ± 5% Voltage and Current Regulation Across Line
    and Load
  • 80-kHz Maximum Switching Frequency Enables
    High-Power Density Charger Designs
  • Quasi-Resonant Valley-Switching Operation for
    Highest Overall Efficiency
  • Wide VDD Range Allows Small Bias Capacitor
  • Output Overvoltage, Low-Line, and Overcurrent
    Protection Functions
  • Programmable Cable Compensation
  • SOT23-6 Package

The UCC28722 flyback power supply controller provides isolated-output constant-voltage (CV) and constant-current (CC) output regulation without the use of an optical coupler. The device processes information from the primary power switch and an auxiliary flyback winding for precise control of output voltage and current.

Dynamically-controlled operating states and a tailored modulation profile support high-efficiency operation at all load levels without sacrificing output transient response.

Control algorithms in the UCC28722 device allow operating efficiencies to meet or exceed applicable standards. The output drive interfaces to a bipolar transistor power switch, enabling lower-cost converter design. Discontinuous conduction mode (DCM) with valley switching reduces switching losses, while modulation of switching frequency and primary current peak amplitude (FM and AM) keeps the conversion efficiency high across the entire load and line ranges.

The controller has a maximum switching frequency of 80 kHz and always maintains control of the peak-primary current in the transformer. Output overvoltage and overcurrent as well as input undervoltage protection features help keep primary and secondary component stresses in check. The UCC28722 also allows compensation for voltage drop in the cable to be programmed with an external resistor.

The UCC28722 flyback power supply controller provides isolated-output constant-voltage (CV) and constant-current (CC) output regulation without the use of an optical coupler. The device processes information from the primary power switch and an auxiliary flyback winding for precise control of output voltage and current.

Dynamically-controlled operating states and a tailored modulation profile support high-efficiency operation at all load levels without sacrificing output transient response.

Control algorithms in the UCC28722 device allow operating efficiencies to meet or exceed applicable standards. The output drive interfaces to a bipolar transistor power switch, enabling lower-cost converter design. Discontinuous conduction mode (DCM) with valley switching reduces switching losses, while modulation of switching frequency and primary current peak amplitude (FM and AM) keeps the conversion efficiency high across the entire load and line ranges.

The controller has a maximum switching frequency of 80 kHz and always maintains control of the peak-primary current in the transformer. Output overvoltage and overcurrent as well as input undervoltage protection features help keep primary and secondary component stresses in check. The UCC28722 also allows compensation for voltage drop in the cable to be programmed with an external resistor.
filter 기타 AC/DC 및 DC/DC 컨트롤러(외장 FET) 찾기
다운로드 스크립트와 함께 비디오 보기 동영상

기술 자료

star =TI에서 선정한 이 제품의 인기 문서
검색된 결과가 없습니다. 검색어를 지우고 다시 시도하십시오.
18개 모두 보기
유형 직함 날짜
* Data sheet UCC28722 Constant-Voltage, Constant-Current Controller With Primary-Side Regulation, BJT Drive datasheet (Rev. B) PDF | HTML 2015/10/30
Application note Flyback Aux Winding OVP and UVLO Fault Sensing Design and Troubleshooting Tips PDF | HTML 2021/08/31
Application note Common-Mode-Chokeless Bias Supply Reference Design Example 2020/01/02
Application note Minimize Standby Consumption for UCC287XX Family 2019/08/01
Application note Selecting Electrolitic Bus Capacitor for Universal Input 2018/07/17
Application note Maximum Output Power and Thermal Considerations for UCC28720 and UCC28722 2017/12/06
Application note AC-DC Non-Isolated SMPS for Single-Phase Smart Meters Based on UCC28722 (Rev. A) 2017/11/02
Technical article Making smart meter eFuses robust and reliable PDF | HTML 2017/06/28
Technical article Powering the IoT PDF | HTML 2017/01/26
Application note Troubleshooting TI PSR controllers 2016/10/03
Technical article Solving the biggest challenges when designing smart meter power supplies PDF | HTML 2016/09/06
Application note UCC28722, Bias Supply Design Considerations for Intelligent eMeter Applications 2016/08/05
Technical article Slim down your flyback; lose that excess snubber PDF | HTML 2016/02/15
Application note Versatile Buck-Boost driver based on UCC28722 for 5W-9W LED Bulb 2015/12/08
White paper Control Challenges for Low Power AC/DC Converters 2015/10/02
White paper Control Challenges for Low Power AC/DC Converters (PPT) 2015/10/02
Technical article Designing multiple output converters with primary side sensing PDF | HTML 2015/08/04
Application note 5-W USB Flyback Design Example Using the UCC28722 2014/01/08

설계 및 개발

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

평가 보드

UCC28720EVM-212 — USB 오프라인 어댑터를 위한 UCC28720EVM-212 5W 평가 모듈

The UCC28720EVM-212 is a 5W evaluation module for evaluating an off line adapter for USB applications. It is intended for evaluation purposes and is not intended to be an end product. The UCC28720EVM-212 converters 100V to 240V RMS input voltage down to 5V DC, with a 1A current limit for USB (...)
사용 설명서: PDF
TI.com에서 구매 불가
시뮬레이션 모델

UCC28722 Unencrypted PSpice Transient Model Package (Rev. A)

SLUM466A.ZIP (64 KB) - PSpice Model
다운로드
계산 툴

SLUC528 — UCC28722 MathCad Design Tool

지원되는 제품 및 하드웨어

지원되는 제품 및 하드웨어

제품
AC/DC 및 DC/DC 컨트롤러(외장 FET)
UCC28720 — 양극 전원 장치를 위한 1차 측 조정을 지원하는 정전압, 정전류 컨트롤러 UCC28722 — 양극 전력 디바이스를 위해 1차측 조정을 사용하는 저비용의 CVCC 플라이백 컨트롤러
다운로드
계산 툴

SLUC529 — UCC28722 Excel Design Tool

지원되는 제품 및 하드웨어

지원되는 제품 및 하드웨어

제품
AC/DC 및 DC/DC 컨트롤러(외장 FET)
UCC28720 — 양극 전원 장치를 위한 1차 측 조정을 지원하는 정전압, 정전류 컨트롤러 UCC28722 — 양극 전력 디바이스를 위해 1차측 조정을 사용하는 저비용의 CVCC 플라이백 컨트롤러
다운로드

많은 TI 레퍼런스 설계에는 UCC28722이(가) 포함됩니다.

레퍼런스 디자인 선택 툴을 사용하여 애플리케이션 및 매개 변수에 가장 적합한 설계를 검토하고 식별할 수 있습니다.

레퍼런스 설계 보기
패키지 핀 CAD 기호, 풋프린트 및 3D 모델
SOT-23 (DBV) 6 Ultra Librarian
TI의 평가 항목에 대한 표준 약관이 적용됩니다.

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

지원 및 교육

TI 엔지니어의 기술 지원을 받을 수 있는 TI E2E™ 포럼

포럼 주제 모두 보기(영문)

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