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

UCC3895

활성

향상된 제어 로직, 0°C~70°C를 지원하는 위상 변이 풀 브리지 컨트롤러

지금 주문
데이터시트

이 제품의 최신 버전이 있습니다

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다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능
UCC28951 활성 넓은 입력 전압 범위를 위한 SR 제어 기능을 갖춘 그린 위상 전환 풀 브리지 컨트롤러 SR control, better light load efficiency, and programmable delays for ZVS

UCC3895

활성
데이터시트 지금 주문

제품 상세 정보

Vin (max) (V) 16.5 Operating temperature range (°C) 0 to 70 Control mode Current Topology Phase-shifted full bridge Rating Catalog Duty cycle (max) (%) 100
Vin (max) (V) 16.5 Operating temperature range (°C) 0 to 70 Control mode Current Topology Phase-shifted full bridge Rating Catalog Duty cycle (max) (%) 100
PDIP (N) 20 228.702 mm² 24.33 x 9.4 SOIC (DW) 20 131.84 mm² 12.8 x 10.3 TSSOP (PW) 20 41.6 mm² 6.5 x 6.4
  • Programmable-output turnon delay
  • Adaptive delay set
  • Bidirectional oscillator synchronization
  • Voltage-mode, peak current-mode, or average current-mode control
  • Programmable soft start, soft stop, and chip disable via a single pin
  • 0% to 100% duty-cycle control
  • 7-MHz error amplifier
  • Operation to 1 MHz
  • Typical 5-mA operating current at 500 kHz
  • Very low 150-µA current during UVLO
  • Programmable-output turnon delay
  • Adaptive delay set
  • Bidirectional oscillator synchronization
  • Voltage-mode, peak current-mode, or average current-mode control
  • Programmable soft start, soft stop, and chip disable via a single pin
  • 0% to 100% duty-cycle control
  • 7-MHz error amplifier
  • Operation to 1 MHz
  • Typical 5-mA operating current at 500 kHz
  • Very low 150-µA current during UVLO

The UCC3895 is a phase-shift PWM controller that implements control of a full-bridge power stage by phase shifting the switching of one half-bridge with respect to the other. The device allows constant frequency pulse-width modulation in conjunction with resonant zero-voltage switching to provide high efficiency at high frequencies. The part is used either as a voltage-mode or current-mode controller.

While the UCC3895 maintains the functionality of the UC3875/6/7/8 family and UC3879, it improves on that controller family with additional features such as enhanced control logic, adaptive delay set, and shutdown capability. Because the device is built using the BCDMOS process, it operates with dramatically less supply current than it’s bipolar counterparts. The UCC3895 operates with a maximum clock frequency of 1 MHz.

The UCC3895 is a phase-shift PWM controller that implements control of a full-bridge power stage by phase shifting the switching of one half-bridge with respect to the other. The device allows constant frequency pulse-width modulation in conjunction with resonant zero-voltage switching to provide high efficiency at high frequencies. The part is used either as a voltage-mode or current-mode controller.

While the UCC3895 maintains the functionality of the UC3875/6/7/8 family and UC3879, it improves on that controller family with additional features such as enhanced control logic, adaptive delay set, and shutdown capability. Because the device is built using the BCDMOS process, it operates with dramatically less supply current than it’s bipolar counterparts. The UCC3895 operates with a maximum clock frequency of 1 MHz.
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기술 문서

star =TI에서 선정한 이 제품의 인기 문서
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모두 보기15
유형 직함 날짜
* Data sheet UCCx895 BiCMOS Advanced Phase-Shift PWM Controller datasheet (Rev. Q) PDF | HTML 2019/10/09
Technical article 35 years later, APEC continues to set the tone for innovation in power management PDF | HTML 2020/02/27
Selection guide Power Management Guide 2018 (Rev. R) 2018/06/25
Application note Phase Shifted Full Bridge, Zero Voltage Transition Design Considerations (Rev. A) 2011/01/22
Application note UCC2895 Layout and Grounding Recommendations 2009/04/09
EVM User's guide UCC3895EVM-001 Configuring The UCC3895 For Direct Control Driven Synchronous Re (Rev. B) 2008/12/02
Application note Current Doubler Rectifier Offers Ripple Current Cancellation 2004/09/21
Application note Synchronous Rectifiers of a Current Doubler 2003/02/27
Application note UCC3895 CD Output Asymmetric Duty Cycle Operation 2002/08/21
Application note A Power Management Solution for Efficient, Multiple Output Applications 2001/10/04
Application note A Comparison Between the BiCMOS UCC3895 Phase Shift Controller and the UC3875 2001/02/22
More literature Seminar 800 Topic 5 - Fixed-Frequency Resonant-Switched PWM 2001/02/15
More literature Seminar 900 Topic 3 - Designing a Phase-Shifted ZVT Power Converter 2001/02/15
More literature Seminar 900 Topic 4 - 500-W 40-W/in3 Phase-Shifted ZVT Power Converter 2001/02/15
Application note DN-63 The Current-Doubler Rectifier: An Alternative Rectification Technique 2001/01/12

설계 및 개발

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

평가 보드

UCC3895EVM-001 — UCC3895 평가 모듈

The UCC3895EVM-001 is an isolated 48V input phase shifted full bridge converter providing an output of 3.3V at 15A. Using the AB outputs of the UCC3895, a novel technique for direct control driven synchronous rectification is demonstrated.

사용 설명서: PDF
TI.com에서 구매할 수 없습니다
시뮬레이션 모델

UCC1895, UCC2895, UCC3895 TINA-TI Average Reference Design

SLUM188.TSC (99 KB) - TINA-TI Reference Design
다운로드
시뮬레이션 모델

UCC1895, UCC2895, UCC3895 TINA-TI Average Spice Model

SLUM189.ZIP (11 KB) - TINA-TI Spice Model
다운로드
시뮬레이션 모델

UCC1895, UCC2895, UCC3895 TINA-TI Transient Reference Design

SLUM186.TSC (934 KB) - TINA-TI Reference Design
다운로드
시뮬레이션 모델

UCC1895, UCC2895, UCC3895 TINA-TI Transient Spice Model

SLUM187.ZIP (39 KB) - TINA-TI Spice Model
다운로드
시뮬레이션 모델

UCCx895 Family PSpice Average Model

SLUM080.ZIP (105 KB) - PSpice Model
다운로드
시뮬레이션 모델

UCCx895 and UCCx7324 Families PSpice Transient Model (Rev. A)

SLUM055A.ZIP (90 KB) - PSpice Model
다운로드
레퍼런스 디자인

PMP9622 — 350W 정전압 - 정전류(CVCC) 위상 전환 풀 브리지 레퍼런스 디자인

This reference design uses the UCC3895 Phase-Shifted Full Bridge controller to implement a high efficiency, 120VAC input to 44Vdc up to 8A output.  The power supply is set up to be  constant voltage-constant current.  The voltage and current are set by fixed resistor values and could (...)
Test report: PDF
회로도: PDF
패키지 핀 다운로드
PDIP (N) 20 옵션 보기
SOIC (DW) 20 옵션 보기
TSSOP (PW) 20 옵션 보기
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

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포럼 주제 모두 보기(영문)

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