홈 전력 관리 AC/DC 및 DC/DC 컨트롤러(외장 FET)
홈
전력 관리
AC/DC 및 DC/DC 컨트롤러(외장 FET)
신규

LM51772-Q1

활성

차량용, 55V I2C 인터페이스를 지원하는 4스위치 벅-부스트 컨트롤러

지금 주문
데이터 시트

LM51772-Q1

활성
데이터 시트 지금 주문

제품 상세 정보

Rating Automotive Topology Buck-Boost Vin (max) (V) 55 Vin (min) (V) 0 Vout (max) (V) 55 Vout (min) (V) 1 Features 1% accuracy, AEC Q100, Adjustable current limit, Adjustable soft start, Adjustable switching frequency, Advanced power saving, Dynamic voltage scaling, Enable, Extended power range, Frequency synchronization, I2C, Light-load efficiency, Load Disconnect, Power good, Spread Spectrum, Synchronous rectification, Tracking, USB C/PD compatible, UVLO adjustable Operating temperature range (°C) -40 to 150 Iq (typ) (µA) 60 Duty cycle (max) (%) 100 TI functional safety category Functional Safety-Capable EMI features Frequency Dithering, Spread Spectrum
Rating Automotive Topology Buck-Boost Vin (max) (V) 55 Vin (min) (V) 0 Vout (max) (V) 55 Vout (min) (V) 1 Features 1% accuracy, AEC Q100, Adjustable current limit, Adjustable soft start, Adjustable switching frequency, Advanced power saving, Dynamic voltage scaling, Enable, Extended power range, Frequency synchronization, I2C, Light-load efficiency, Load Disconnect, Power good, Spread Spectrum, Synchronous rectification, Tracking, USB C/PD compatible, UVLO adjustable Operating temperature range (°C) -40 to 150 Iq (typ) (µA) 60 Duty cycle (max) (%) 100 TI functional safety category Functional Safety-Capable EMI features Frequency Dithering, Spread Spectrum
VQFN (RHA) 40 36 mm² 6 x 6
  • Input range from 0V (V(BIAS) ≥ 3.5V) to 55V
  • Output voltage 1V to 55V
  • Dynamical Vo programming via I2C from:
    • 3.3V up to 48V in 20mV steps
    • 1V up to 24V in 10mV steps
  • Peak current regulation control
  • Small voltage transition ripple overall operating modes
  • Shut down quiescent current 3µA
  • Operating quiescent current 60µA
  • DRV pin for external FET control
  • Operation mode selection for high efficiency in light load and high load conditions:
    • Power save mode (Single Pulse/µSleep)
    • Automatic/programmable conduction mode
  • Integrated high voltage supply LDO
  • Auxiliary high voltage LDO/reference
  • Integrated full-bridge gate drive
    • 2A peak current capability
    • Bootstrap over and under-voltage protection
    • Integrated boot-strap diode
  • Fixed frequency independent from operating mode (boost, buck-boost, buck)
    • Forced PWM mode selectable
    • Switching frequency from 100kHz to 2.2MHz
    • External clock synchronization and clock output
  • Average input or output current sensor
    • Programmable from 0.5A (5mV) to 7A (70mV) in 50mA (500µV) steps
    • ISET pin selectable
  • I2C programmable with diagnostics
    • I2C usage is optional, alternative feature selection via CFG-Pins
  • Automotive temperature range (Tj = -40°C to 150°C)
  • 40-Pin WSON package with wettable flanks

  • Create a custom design using the LM51772-Q1 with the WEBENCH® Power Designer
  • Input range from 0V (V(BIAS) ≥ 3.5V) to 55V
  • Output voltage 1V to 55V
  • Dynamical Vo programming via I2C from:
    • 3.3V up to 48V in 20mV steps
    • 1V up to 24V in 10mV steps
  • Peak current regulation control
  • Small voltage transition ripple overall operating modes
  • Shut down quiescent current 3µA
  • Operating quiescent current 60µA
  • DRV pin for external FET control
  • Operation mode selection for high efficiency in light load and high load conditions:
    • Power save mode (Single Pulse/µSleep)
    • Automatic/programmable conduction mode
  • Integrated high voltage supply LDO
  • Auxiliary high voltage LDO/reference
  • Integrated full-bridge gate drive
    • 2A peak current capability
    • Bootstrap over and under-voltage protection
    • Integrated boot-strap diode
  • Fixed frequency independent from operating mode (boost, buck-boost, buck)
    • Forced PWM mode selectable
    • Switching frequency from 100kHz to 2.2MHz
    • External clock synchronization and clock output
  • Average input or output current sensor
    • Programmable from 0.5A (5mV) to 7A (70mV) in 50mA (500µV) steps
    • ISET pin selectable
  • I2C programmable with diagnostics
    • I2C usage is optional, alternative feature selection via CFG-Pins
  • Automotive temperature range (Tj = -40°C to 150°C)
  • 40-Pin WSON package with wettable flanks

  • Create a custom design using the LM51772-Q1 with the WEBENCH® Power Designer

The LM51772-Q1 is a four switch Buck-Boost controller with optional I2C control. The device provides a regulated output voltage if the input voltage is higher, equal or lower than the adjusted output voltage. In power safe mode the device supports very high efficiency at light and high load conditions and features a programmable pass-through function(PCM). The second over-voltage protection is user programmable and can be used to limit the voltage during moisture (test) conditions. Numerous monitoring features like a thermal warning help to maintain the system housekeeping.

LM51772-Q1 runs at a fixed switching frequency, which can be set via the RT/SYNC pin. The switching frequency remains the same during buck, boost and buck-boost operation. The device maintains small mode transition ripple overall operating modes. The integrated and optional high-side current sensor features an accurate output or input current limitation. The average current limit of the LM51772-Q1 is also configurable through the I2C interface.

The LM51772-Q1 is a four switch Buck-Boost controller with optional I2C control. The device provides a regulated output voltage if the input voltage is higher, equal or lower than the adjusted output voltage. In power safe mode the device supports very high efficiency at light and high load conditions and features a programmable pass-through function(PCM). The second over-voltage protection is user programmable and can be used to limit the voltage during moisture (test) conditions. Numerous monitoring features like a thermal warning help to maintain the system housekeeping.

LM51772-Q1 runs at a fixed switching frequency, which can be set via the RT/SYNC pin. The switching frequency remains the same during buck, boost and buck-boost operation. The device maintains small mode transition ripple overall operating modes. The integrated and optional high-side current sensor features an accurate output or input current limitation. The average current limit of the LM51772-Q1 is also configurable through the I2C interface.
filter 기타 AC/DC 및 DC/DC 컨트롤러(외장 FET) 찾기
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기술 자료

star =TI에서 선정한 이 제품의 인기 문서
검색된 결과가 없습니다. 검색어를 지우고 다시 시도하십시오.
6개 모두 보기
유형 직함 날짜
* Data sheet LM51772-Q1 55V 4-Switch Buck-Boost Controller with I2 C interface datasheet (Rev. A) PDF | HTML 2025/10/21
Certificate LM51772Q1EVM-HP EU Declaration of Conformity (DoC) 2025/10/21
Application brief Using the DRV1 Pin on LM51772 and LM251772 PDF | HTML 2025/07/29
Application note Battery or Capacitor Backup Operation with the LM51772 2025/07/09
Functional safety information LM51772-Q1 and LM251772-Q1 Functional Safety FIT Rate and FMD PDF | HTML 2025/05/05
Application note Layout Optimization of 4-Switch Buck-Boost Converters PDF | HTML 2023/09/05

설계 및 개발

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

평가 보드

LM51772EVM-HP — LM51772 평가 모듈

LM51772EVM-HP는 LM51772 와이드 V‌IN 벅-부스트 컨트롤러를 사용하여 유연한 고전력 벅-부스트 설계를 시연합니다. 평가 모듈은 입력 전압 범위 9V~48V에서 작동하도록 구성되어 있으며, 최대 5A의 부하 전류로 조정된 20V 출력을 제공합니다.

사용 설명서: PDF | HTML
TI.com에서 구매 불가
평가 모듈(EVM)용 GUI

LM51772-CONFIGURATON-GUI — LM51772 GUI for configuration via I2C

Graphical User Interface (GUI) to configure the LM51772 via I2C. You can use the Launch button for using the GUI online via a browser or one of the download files to operate the GUI offline
지원되는 제품 및 하드웨어

지원되는 제품 및 하드웨어

제품
AC/DC 및 DC/DC 컨트롤러(외장 FET)
LM51772 — I2C 인터페이스를 지원하는 55V 와이드 VIN 4 스위치 벅-부스트 컨트롤러 LM51772-Q1 — 차량용, 55V I2C 인터페이스를 지원하는 4스위치 벅-부스트 컨트롤러
하드웨어 개발
평가 보드
LM51772EVM-HP — LM51772 평가 모듈
시작 다운로드 옵션
계산 툴

LM51772-QUICKSTART-CALC — LM51772 BuckBoost Quickstart Calculator Tool

LM51772 BuckBoost Quickstart Calculator Tool. This standalone tool facilitates and assists the power supply engineer with the design of a DC/DC buck-boost converter based on the LM51772.
지원되는 제품 및 하드웨어

지원되는 제품 및 하드웨어

제품
AC/DC 및 DC/DC 컨트롤러(외장 FET)
LM51772 — I2C 인터페이스를 지원하는 55V 와이드 VIN 4 스위치 벅-부스트 컨트롤러 LM51772-Q1 — 차량용, 55V I2C 인터페이스를 지원하는 4스위치 벅-부스트 컨트롤러
하드웨어 개발
평가 보드
LM51772EVM-HP — LM51772 평가 모듈
다운로드
패키지 핀 CAD 기호, 풋프린트 및 3D 모델
VQFN (RHA) 40 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

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지원 및 교육

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