홈 전원 관리 AC/DC & DC/DC controllers (external FET)
홈
전원 관리
AC/DC & DC/DC controllers (external FET)

UCC28951-Q1

활성

넓은 입력 전압 범위를 위한 SR 제어 기능을 갖춘 오토모티브 그린 위상 전환 풀 브리지 컨트롤러

지금 주문
데이터시트

UCC28951-Q1

활성
데이터시트 지금 주문

제품 상세 정보

Vin (max) (V) 17 Operating temperature range (°C) -40 to 125 Control mode Current Topology Phase-shifted full bridge Rating Automotive Duty cycle (max) (%) 97
Vin (max) (V) 17 Operating temperature range (°C) -40 to 125 Control mode Current Topology Phase-shifted full bridge Rating Automotive Duty cycle (max) (%) 97
TSSOP (PW) 24 49.92 mm² 7.8 x 6.4
  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature range
    • Device HBM ESD classification level H2
    • Device CDM ESD classification level C3B
  • Enhanced zero-voltage switching (ZVS) range
  • Direct synchronous rectifier (SR) control
  • Light-load efficiency management including:
    • Burst mode operation
    • Discontinuous conduction mode (DCM), dynamic SR on/off control with programmable threshold
    • Programmable adaptive delay
  • Average- or peak-current mode control with programmable slope compensation and voltage-mode control
  • Closed-loop soft-start and enable function
  • Programmable switching frequency up to 1 MHz with bidirectional synchronization
  • (±3%) cycle-by-cycle current limit protection with hiccup mode support
  • 150-µA start-up current
  • VDD undervoltage lockout
  • Wide temperature range: –40°C to +125°C
  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature range
    • Device HBM ESD classification level H2
    • Device CDM ESD classification level C3B
  • Enhanced zero-voltage switching (ZVS) range
  • Direct synchronous rectifier (SR) control
  • Light-load efficiency management including:
    • Burst mode operation
    • Discontinuous conduction mode (DCM), dynamic SR on/off control with programmable threshold
    • Programmable adaptive delay
  • Average- or peak-current mode control with programmable slope compensation and voltage-mode control
  • Closed-loop soft-start and enable function
  • Programmable switching frequency up to 1 MHz with bidirectional synchronization
  • (±3%) cycle-by-cycle current limit protection with hiccup mode support
  • 150-µA start-up current
  • VDD undervoltage lockout
  • Wide temperature range: –40°C to +125°C

The UCC28951-Q1 controller is an enhanced version of the UCC28950-Q1. It is a fully compatible drop-in replacement for the UCC28950-Q1. Refer to application note Making the Correct Choice: UCC28950-Q1 or UCC28951-Q1 to determine which controller to use.The UCC28951-Q1 uses advanced control of the full-bridge in addition to active control of the synchronous rectifier (SR) output stage.

Programmable delays ensure ZVS operation over a wide range of operating conditions, while the load current naturally tunes the switching delays of the secondary-side synchronous rectifiers(SR). This functionality maximizes overall system efficiency.

The 24-pin, TSSOP package complies with RoHS requirements.

The UCC28951-Q1 controller is an enhanced version of the UCC28950-Q1. It is a fully compatible drop-in replacement for the UCC28950-Q1. Refer to application note Making the Correct Choice: UCC28950-Q1 or UCC28951-Q1 to determine which controller to use.The UCC28951-Q1 uses advanced control of the full-bridge in addition to active control of the synchronous rectifier (SR) output stage.

Programmable delays ensure ZVS operation over a wide range of operating conditions, while the load current naturally tunes the switching delays of the secondary-side synchronous rectifiers(SR). This functionality maximizes overall system efficiency.

The 24-pin, TSSOP package complies with RoHS requirements.
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기술 문서

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모두 보기12
유형 직함 날짜
* Data sheet UCC28951-Q1 Phase-Shifted Full-Bridge Controller for Wide-Input Voltage Range Applications datasheet (Rev. B) PDF | HTML 2021/12/02
Application note UCC28950 600W Phase Shifted Full Bridge Design Review/Application Report (Rev. D) PDF | HTML 2022/03/04
Functional safety information UCC28951-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 2020/09/30
Application note PFC Design Choice for On Board Charger Designs 2018/05/24
Application brief Reducing Switching Losses in On-Board Chargers for Electric Vehicles 2018/03/27
Technical article Hybrid electric vehicles and electric vehicles need different isolated DC/DCs to w PDF | HTML 2017/12/27
Application note Making the Correct Choice: UCC28950-Q1 or UCC28951-Q1 2017/11/13
Technical article Are you on-board? Demystifying EV charging systems PDF | HTML 2017/07/31
Application note Gate Driver Design Considerations 2016/10/10
EVM User's guide Using the UCC27714EVM-551 for Evaluating the UCC28951-Q1 2016/10/06
More literature Design review of a 2-kW parallelable power supply module 2016/08/17
More literature Design review of a 2-kW parallelable power supply module (PPT) 2016/08/17

설계 및 개발

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

시뮬레이션 모델

UCC28950 and UCC28951 PSpice Transient Model (Rev. B)

SLUM169B.ZIP (153 KB) - PSpice Model
다운로드
시뮬레이션 모델

UCC28950 and UCC28951 TINA-TI Startup Reference Design (Rev. A)

SLUM276A.TSC (738 KB) - TINA-TI Reference Design
다운로드
시뮬레이션 모델

UCC28950 and UCC28951 TINA-TI Steady State Reference Design (Rev. A)

SLUM277A.TSC (739 KB) - TINA-TI Reference Design
다운로드
레퍼런스 디자인

TIDA-01407 — 차량용 400W, 48V 배터리 입력, 12V 출력 전원 레퍼런스 디자인

This reference design is an automotive, 400-W, phase-shifted full-bridge converter which generates the 12-V output from a 48-V car battery. The enhanced phaseshifted full-bridge controller implements programmable delays which ensure zero voltage switching (ZVS) over a wide range of operating (...)
Design guide: PDF
회로도: PDF
레퍼런스 디자인

PMP20657 — 작고 효율적인 단방향 48V~12V@400W 차량용 전원 공급 장치 레퍼런스 설계

The PMP20657 reference design is a compact, efficient unidirectional 48V to 12V @ 400W power converter. The design is pseudo-isolated to protect 12V loads. The phase-shifted full-bridge topology achieves over 95% peak efficiency. Light-load mode enables <100mW standby power with full (...)
Test report: PDF
회로도: PDF
패키지 핀 다운로드
TSSOP (PW) 24 옵션 보기
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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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포럼 주제 모두 보기(영문)

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