전원 관리 AC/DC 및 DC/DC 컨버터(통합 FET)

UCC28911

활성

정전압, 정전류 및 1차측 조절을 사용하는 700V 플라이백 스위처

제품 상세 정보

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck, Flyback Iout (max) (A) 0.7 Vin (min) (V) 10 Vin (max) (V) 450 Switching frequency (min) (kHz) 0.42 Switching frequency (max) (kHz) 115 Features Adjustable switching frequency, Current limiting, Green mode, High voltage startup, High-voltage startup, Input line monitor, Integrated Switch, IoT compatible, Leading edge blanking, Light load efficiency, Light-load efficiency, Overcurrent protection, Overtemperature protection, Soft start, Thermal shutdown Control mode Current, Primary-side regulation, Voltage Vout (min) (V) 3.3 Vout (max) (V) 18 Iq (typ) (µA) 23500 Duty cycle (max) (%) 99
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck, Flyback Iout (max) (A) 0.7 Vin (min) (V) 10 Vin (max) (V) 450 Switching frequency (min) (kHz) 0.42 Switching frequency (max) (kHz) 115 Features Adjustable switching frequency, Current limiting, Green mode, High voltage startup, High-voltage startup, Input line monitor, Integrated Switch, IoT compatible, Leading edge blanking, Light load efficiency, Light-load efficiency, Overcurrent protection, Overtemperature protection, Soft start, Thermal shutdown Control mode Current, Primary-side regulation, Voltage Vout (min) (V) 3.3 Vout (max) (V) 18 Iq (typ) (µA) 23500 Duty cycle (max) (%) 99
SOIC (D) 7 29.4 mm² 4.9 x 6
  • Constant-Voltage (CV) and Constant-Current (CC) Output Regulation Without Optical-Coupler
  • ±5% Output Voltage Regulation Accuracy
  • ±5% Output Current Regulation With AC Line and Primary Inductance Tolerance Compensation
  • 700-V Start-Up and Smart Power Management Enables <30-mW Standby Power
  • 115-kHz Maximum Switching Frequency Design for High-Power Density
  • Valley Switching and Frequency Dithering to Ease EMI Compliance
  • Thermal Shut Down
  • Low Line and Output Over-Voltage Protection
  • Constant-Voltage (CV) and Constant-Current (CC) Output Regulation Without Optical-Coupler
  • ±5% Output Voltage Regulation Accuracy
  • ±5% Output Current Regulation With AC Line and Primary Inductance Tolerance Compensation
  • 700-V Start-Up and Smart Power Management Enables <30-mW Standby Power
  • 115-kHz Maximum Switching Frequency Design for High-Power Density
  • Valley Switching and Frequency Dithering to Ease EMI Compliance
  • Thermal Shut Down
  • Low Line and Output Over-Voltage Protection

The UCC28910 and UCC28911 are high-voltage flyback switchers that provide output voltageand current regulation without the use of an optical coupler. Both devices incorporate a 700-Vpower FET and a controller that process operating information from the flyback auxiliary windingand power FET to provide a precise output voltage and current control. The integrated high-voltage current source for startup that is switched off during device operation, and the controller current consumption is dynamically adjusted with load. Both enablethe very low stand-by power consumption.

Control algorithms in the UCC28910 and UCC28911, combining switching frequency and peakprimary current modulation, allow operating efficiencies to meet or exceed applicable standards.Discontinuous conduction mode (DCM) with valley switching is used to reduce switching losses.Built-in protection features help to keep secondary and primary component stress levels in check across the operating range. The frequency jitter helps to reduce EMI filter

The UCC28910 and UCC28911 are high-voltage flyback switchers that provide output voltageand current regulation without the use of an optical coupler. Both devices incorporate a 700-Vpower FET and a controller that process operating information from the flyback auxiliary windingand power FET to provide a precise output voltage and current control. The integrated high-voltage current source for startup that is switched off during device operation, and the controller current consumption is dynamically adjusted with load. Both enablethe very low stand-by power consumption.

Control algorithms in the UCC28910 and UCC28911, combining switching frequency and peakprimary current modulation, allow operating efficiencies to meet or exceed applicable standards.Discontinuous conduction mode (DCM) with valley switching is used to reduce switching losses.Built-in protection features help to keep secondary and primary component stress levels in check across the operating range. The frequency jitter helps to reduce EMI filter

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기술 자료

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유형 직함 날짜
* Data sheet UCC28910, UCC28911 High-Voltage Flyback Switcher with Primary-Side Regulation and Output Current Control datasheet (Rev. D) PDF | HTML 2016/12/19
White paper Understanding Functional Safety FIT Base Failure Rate Estimates per IEC 62380 and SN 29500 (Rev. A) PDF | HTML 2024/04/30
Application note Flyback Aux Winding OVP and UVLO Fault Sensing Design and Troubleshooting Tips PDF | HTML 2021/08/31
Technical article Overcoming common design challenges in an UV sterilization box system PDF | HTML 2020/07/27
Technical article Making a solar inverter more reliable than the sun PDF | HTML 2017/08/01
Application note Troubleshooting TI PSR controllers 2016/10/03
Technical article Differences between PSR and SSR in bias power-supply design PDF | HTML 2016/04/08
Technical article Design an energy-efficient, lower-acoustic cooker hood with an elegant user interf PDF | HTML 2016/03/29
Technical article Power Tips: Power converter topology/component selections in high input voltage ap PDF | HTML 2015/10/07
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
EVM User's guide Using the UCC28911EVM-718 2015/03/06

설계 및 개발

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평가 보드

UCC28911EVM-718 — UCC28911 평가 모듈

The UCC28911EVM-718 evaluation module is an offline Flyback power supply that provides isolated output voltage and current regulation without the use of an optocoupler and secondary-side feedback components. The input accepts a voltage range of 85VAC to 265VAC, 47Hz to 64Hz. The evaluation module (...)

사용 설명서: PDF
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지원 소프트웨어

PMP4367 — 에너지 스타 6 효율 등급의 범용 AC 입력 6W 어댑터

이 5V/1.2A 어댑터 솔루션은 완전한 테스트를 실시하며 EMI 및 EMC(CE, RE) 안전 요구 사항을 통과시킵니다. 이는 고효율 1차측 컨트롤러 UCC28910을 구현합니다. 이 설계의 효율성은 Energy Star 6을 준수하며 소형 폼 팩터 하우징에 맞도록 설계되었습니다. 이 설계는 36mmX30mmX15mm이며 열 특성이 특징입니다. 무부하 효율은 전체 작동 범위에서 30mW 미만입니다. 비용이 낮은 EE16 변압기가 사용됩니다.
계산 툴

SLUC624 UCC28911 Design Calculator

지원되는 제품 및 하드웨어

지원되는 제품 및 하드웨어

제품
AC/DC 및 DC/DC 컨버터(통합 FET)
UCC28911 정전압, 정전류 및 1차측 조절을 사용하는 700V 플라이백 스위처

많은 TI 레퍼런스 설계에는 UCC28911이(가) 포함됩니다.

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

패키지 CAD 기호, 풋프린트 및 3D 모델
SOIC (D) 7 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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