전원 관리 AC/DC 및 DC/DC 컨트롤러(외장 FET)

UCC28250

활성

프리바이어스 작동이 가능한 고급 하프 브리지/풀 브리지 PWM 컨트롤러

제품 상세 정보

Vin (max) (V) 17 Operating temperature range (°C) -40 to 125 Control mode Current, Voltage Topology Forward, Full bridge, Half bridge, Push pull Rating Catalog Features Current limiting, High-voltage startup, SR logic Duty cycle (max) (%) 100
Vin (max) (V) 17 Operating temperature range (°C) -40 to 125 Control mode Current, Voltage Topology Forward, Full bridge, Half bridge, Push pull Rating Catalog Features Current limiting, High-voltage startup, SR logic Duty cycle (max) (%) 100
TSSOP (PW) 20 41.6 mm² 6.5 x 6.4 VQFN (RGP) 20 16 mm² 4 x 4
  • Prebiased Start-up
  • Synchronous Rectifier Control Outputs With Programmable Delays (Including Zero Delay Support)
  • Voltage Mode Control With Input Voltage Feed-Forward or Current Mode Control
  • Primary or Secondary-Side Control
  • 3.3-V, 1.5% Accurate Reference Output
  • 1-MHz Capable Switching Frequency
  • 1% Accurate Cycle-by-Cycle Overcurrent Protection with Matched Duty Cycle Outputs
  • Programmable Soft-Start and Hiccup Restart Timer
  • Thermally Enhanced 4-mm × 4-mm QFN-20 Package and 20-pin TSSOP Package
  • Prebiased Start-up
  • Synchronous Rectifier Control Outputs With Programmable Delays (Including Zero Delay Support)
  • Voltage Mode Control With Input Voltage Feed-Forward or Current Mode Control
  • Primary or Secondary-Side Control
  • 3.3-V, 1.5% Accurate Reference Output
  • 1-MHz Capable Switching Frequency
  • 1% Accurate Cycle-by-Cycle Overcurrent Protection with Matched Duty Cycle Outputs
  • Programmable Soft-Start and Hiccup Restart Timer
  • Thermally Enhanced 4-mm × 4-mm QFN-20 Package and 20-pin TSSOP Package

The UCC28250 PWM controller is designed for high power density applications that may have stringent prebiased start-up requirements. The integrated synchronous rectifier control outputs target high-efficiency and high-performance topologies such as half-bridge, full-bridge, interleaved forward, and push-pull. The UCC27200 half-bridge drivers and UCC2732X MOSFET drivers used in conjunction with the UCC28250 provide a complete power converter solution.

Externally programmable soft-start, used in conjunction with an internal prebiased start-up circuit, allows the controller to gradually reach a steady-state operating point under all output conditions. The UCC28250 can be configured for primary or secondary-side control and either voltage or current mode control can be implemented.

The oscillator operates at frequencies up to 2 MHz, and can be synchronized to an external clock. Input voltage feedforward, cycle-by-cycle current limit, and a programmable hiccup timer allow the system to stay within a safe operation range. Input voltage, output voltage and temperature protection can be implemented. Dead time between primary-side switch and secondary-side synchronous rectifiers can be independently programmed.

The UCC28250 PWM controller is designed for high power density applications that may have stringent prebiased start-up requirements. The integrated synchronous rectifier control outputs target high-efficiency and high-performance topologies such as half-bridge, full-bridge, interleaved forward, and push-pull. The UCC27200 half-bridge drivers and UCC2732X MOSFET drivers used in conjunction with the UCC28250 provide a complete power converter solution.

Externally programmable soft-start, used in conjunction with an internal prebiased start-up circuit, allows the controller to gradually reach a steady-state operating point under all output conditions. The UCC28250 can be configured for primary or secondary-side control and either voltage or current mode control can be implemented.

The oscillator operates at frequencies up to 2 MHz, and can be synchronized to an external clock. Input voltage feedforward, cycle-by-cycle current limit, and a programmable hiccup timer allow the system to stay within a safe operation range. Input voltage, output voltage and temperature protection can be implemented. Dead time between primary-side switch and secondary-side synchronous rectifiers can be independently programmed.

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기술 자료

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6개 모두 보기
유형 직함 날짜
* Data sheet UCC28250 Advanced PWM Controller With Prebias Operation datasheet (Rev. D) PDF | HTML 2015/06/28
Selection guide Power Management Guide 2018 (Rev. R) 2018/06/25
Application note Differences Between the UCC28251 and UCC28250 and Evaluation of the UCC28251 in (Rev. A) 2013/02/15
EVM User's guide Using the UCC28250EVM-564 (Rev. A) 2011/10/07
EVM User's guide Using the UCC28250EVM-501 Half Bridge DC-DC Converter with Primary Side Control (Rev. B) 2010/12/07
Application note Designing UCC28250 as a Secondary Side Control with a Pre-Bias Condition 2010/11/24

설계 및 개발

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

평가 보드

UCC28250EVM-501 — 1차측 제어의 UCC28250 고급 PWM 컨트롤러용 평가 모듈

The UCC28250EVM-501 is a fully assembled and tested circuit for evaluating the UCC28250 Advanced PWM Controller with Pre-Bias Operation. The UCC28250EVM-501 comprises a symmetrical half-bridge DC/DC converter, which converts a 36V to 72V DC input to a 3.3V DC output with a maximum 75W output power.
사용 설명서: PDF
TI.com에서 구매 불가
평가 보드

UCC28250EVM-564 — 2차측 제어로 프리바이어스드 부하 연산 기능이 있는 UCC28250 고급 PWM 컨트롤러용 평가 모듈

The UCC28250EVM-564 is a fully assembled and tested circuit for evaluating the UCC28250 Advanced PWM Controller with Pre-Bias Operation. The UCC28250EVM-564 comprises a symmetrical half bridge DC-DC converter which converts a 36V to 75V DC input to a 3.3V DC output with 100W maximum output power.
사용 설명서: PDF
TI.com에서 구매 불가
시뮬레이션 모델

UCC28250 Unencrypted PSPICE Average Model Package (Rev. A)

SLUM171A.ZIP (96 KB) - PSpice Model
계산 툴

SLUC260 UCC28250 Excel Design Tool

지원되는 제품 및 하드웨어

지원되는 제품 및 하드웨어

제품
AC/DC 및 DC/DC 컨트롤러(외장 FET)
UCC28250 프리바이어스 작동이 가능한 고급 하프 브리지/풀 브리지 PWM 컨트롤러
레퍼런스 디자인

PMP8878 — 1/8 브릭 절연 DC/DC 텔레콤 전원 모듈 레퍼런스 디자인

PMP8878 is a full-function 1/8th brick isolated DC/DC telecom power module based on UCC28250 advanced PWM controller. The reference design features secondary side control and hard switching full bridge power topology to deliver 12V/180W of output power operating across a wide range 40V-75V input (...)
Test report: PDF
회로도: PDF
패키지 CAD 기호, 풋프린트 및 3D 모델
TSSOP (PW) 20 Ultra Librarian
VQFN (RGP) 20 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

지원 및 교육

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