전원 관리 AC/DC 및 DC/DC 컨트롤러(외장 FET)

LM51772

미리 보기

I2C 인터페이스를 지원하는 55V 와이드 VIN 4 스위치 벅-부스트 컨트롤러

제품 상세 정보

Vin (min) (V) 3.5 Vin (max) (V) 55 Operating temperature range (°C) -40 to 125 Topology Buck-Boost Rating Catalog Vout (min) (V) 3.3 Vout (max) (V) 55 Features Adjustable UVLO, Adjustable current limit, Dynamic Voltage Scaling, Enable, Frequency synchronization, I2C, Light Load Efficiency, Load Disconnect, Power good, Spread Spectrum, Synchronous Rectification, Tracking, USB C/PD compatible, UVLO adjustable Iq (typ) (µA) 60 Duty cycle (max) (%) 100
Vin (min) (V) 3.5 Vin (max) (V) 55 Operating temperature range (°C) -40 to 125 Topology Buck-Boost Rating Catalog Vout (min) (V) 3.3 Vout (max) (V) 55 Features Adjustable UVLO, Adjustable current limit, Dynamic Voltage Scaling, Enable, Frequency synchronization, I2C, Light Load Efficiency, Load Disconnect, Power good, Spread Spectrum, Synchronous Rectification, Tracking, USB C/PD compatible, UVLO adjustable Iq (typ) (µA) 60 Duty cycle (max) (%) 100
VQFN (RHA) 40 36 mm² 6 x 6
  • Input range from 3.5V to 55V
  • Output voltage 3.3V to 55V
  • Dynamical Vo programming via I2C from 3.3V
    • up to 48V in 20mV monotonous steps
    • up to 24V in 10mV monotonous steps
  • Peak current regulation scheme
  • Small voltage transition ripple over all operating modes
  • Dynamic output voltage tracking (digital PWM tracking input, analog tracking input)
    • Via I2C interface programming
  • 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 (burst/µSleep)
    • Automatic/programmable conduction mode
  • Integrated high voltage supply LDO
  • Axillary 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
  • Spread spectrum operation selectable
  • High-side output current sensor
    • Programmable from 1A to 7A in 50mA steps
    • ISET pin selectable
  • I2C Interface readout of (device configuration, enhanced monitoring features, programmable thermal warning)
  • Create a custom design using the LM51772 with the WEBENCH® Power Designer

  • Input range from 3.5V to 55V
  • Output voltage 3.3V to 55V
  • Dynamical Vo programming via I2C from 3.3V
    • up to 48V in 20mV monotonous steps
    • up to 24V in 10mV monotonous steps
  • Peak current regulation scheme
  • Small voltage transition ripple over all operating modes
  • Dynamic output voltage tracking (digital PWM tracking input, analog tracking input)
    • Via I2C interface programming
  • 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 (burst/µSleep)
    • Automatic/programmable conduction mode
  • Integrated high voltage supply LDO
  • Axillary 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
  • Spread spectrum operation selectable
  • High-side output current sensor
    • Programmable from 1A to 7A in 50mA steps
    • ISET pin selectable
  • I2C Interface readout of (device configuration, enhanced monitoring features, programmable thermal warning)
  • Create a custom design using the LM51772 with the WEBENCH® Power Designer

The LM51772 is a four switch Buck-Boost controller. It provides a regulated output voltage if the input voltage is higher, equal or lower than the adjusted output voltage. In power save mode the device supports very high efficiency over the complete operation range of the output. The LM51772 runs at a fixed switching frequency, which can be set via the RT/SYNC pin. The switching frequency remains constant during buck, boost and buck-boost operation in forced PWM. The external compensation pin allows very fast transient responds for different applications.(Continued)

The LM51772 is a four switch Buck-Boost controller. It provides a regulated output voltage if the input voltage is higher, equal or lower than the adjusted output voltage. In power save mode the device supports very high efficiency over the complete operation range of the output. The LM51772 runs at a fixed switching frequency, which can be set via the RT/SYNC pin. The switching frequency remains constant during buck, boost and buck-boost operation in forced PWM. The external compensation pin allows very fast transient responds for different applications.(Continued)

다운로드 스크립트와 함께 비디오 보기 동영상

기술 자료

star =TI에서 선정한 이 제품의 인기 문서
검색된 결과가 없습니다. 검색어를 지우고 다시 시도하십시오.
3개 모두 보기
유형 직함 날짜
* Data sheet LM51772 55V 4-Switch Buck-Boost Controller with I2 C interface datasheet (Rev. A) PDF | HTML 2024/03/21
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 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 보드

USB2ANY — USB2ANY 인터페이스 어댑터

The USB2ANY interface adapter is a tool intended to allow a computer to control an evaluation module (EVM) via a USB connection. USB2ANY supports multiple popular protocol interfaces and provides 3.3-V and 5-V power supplies.

사용 설명서: PDF
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
하드웨어 개발
평가 보드
LM51772EVM-HP LM51772 평가 모듈
시작 다운로드 옵션
시뮬레이션 모델

LM51772EVM-HP PCB Layout

SLVME54.ZIP (2229 KB) - TINA-TI Reference Design
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
하드웨어 개발
평가 보드
LM51772EVM-HP LM51772 평가 모듈
패키지 CAD 기호, 풋프린트 및 3D 모델
VQFN (RHA) 40 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

TI 엔지니어의 기술 지원을 받을 수 있는 TI E2E™ 포럼

콘텐츠는 TI 및 커뮤니티 기고자에 의해 "있는 그대로" 제공되며 TI의 사양으로 간주되지 않습니다. 사용 약관을 참조하십시오.

품질, 패키징, TI에서 주문하는 데 대한 질문이 있다면 TI 지원을 방문하세요. ​​​​​​​​​​​​​​

동영상