전원 관리 AC/DC 및 DC/DC 컨트롤러(외장 FET)

LM5171

활성

80V 듀얼 채널 양방향 벅 부스트 컨트롤러

제품 상세 정보

Vin (min) (V) 1 Vin (max) (V) 75 Operating temperature range (°C) -40 to 150 Topology Boost, Buck, Buck/Boost Rating Catalog Vout (min) (V) 3 Vout (max) (V) 80 Features 1% accuracy, 1-MHz maximum frequency, 2 outputs, Adj Current Limit, Adjustable UVLO, Adjustable current limit, Adjustable soft start, Adjustable switching frequency, Bi-directional, Enable, Frequency synchronization, Light Load Efficiency, Multiple Outputs, Phase Interleaving, Power good, Synchronous Rectification, UVLO adjustable Iq (typ) (µA) 1000 Duty cycle (max) (%) 99 TI functional safety category Functional Safety-Capable
Vin (min) (V) 1 Vin (max) (V) 75 Operating temperature range (°C) -40 to 150 Topology Boost, Buck, Buck/Boost Rating Catalog Vout (min) (V) 3 Vout (max) (V) 80 Features 1% accuracy, 1-MHz maximum frequency, 2 outputs, Adj Current Limit, Adjustable UVLO, Adjustable current limit, Adjustable soft start, Adjustable switching frequency, Bi-directional, Enable, Frequency synchronization, Light Load Efficiency, Multiple Outputs, Phase Interleaving, Power good, Synchronous Rectification, UVLO adjustable Iq (typ) (µA) 1000 Duty cycle (max) (%) 99 TI functional safety category Functional Safety-Capable
HTQFP (PHP) 48 81 mm² 9 x 9
  • Functional Safety-Capable
  • 85V HV-port and 80V LV-port max ratings
  • 1% Typical accuracy of bidirectional current regulation
  • 1% Typical accuracy of channel current monitoring
  • I2C interface for monitoring and diagnosis
  • Built-in 3.5V 1% reference voltage
  • Integrated 5V 10mA bias supply
  • 5A peak half-bridge gate drivers
  • Programmable or adaptive dead-time control
  • Programmable oscillator frequency up to 1MHz with optional synchronization to external clock
  • Independent channel enabling control inputs
  • Integrated both current and voltage loop control
  • Programmable cycle-by-cycle peak current limit
  • Over-temperature shutdown
  • HV and LV port overvoltage protection
  • Dynamically selectable diode emulation and forced PWM operation modes
  • Programmable soft-start timer
  • Support both multiphase and independent channel operations
  • Support urgent shutdown latch
  • Functional Safety-Capable
  • 85V HV-port and 80V LV-port max ratings
  • 1% Typical accuracy of bidirectional current regulation
  • 1% Typical accuracy of channel current monitoring
  • I2C interface for monitoring and diagnosis
  • Built-in 3.5V 1% reference voltage
  • Integrated 5V 10mA bias supply
  • 5A peak half-bridge gate drivers
  • Programmable or adaptive dead-time control
  • Programmable oscillator frequency up to 1MHz with optional synchronization to external clock
  • Independent channel enabling control inputs
  • Integrated both current and voltage loop control
  • Programmable cycle-by-cycle peak current limit
  • Over-temperature shutdown
  • HV and LV port overvoltage protection
  • Dynamically selectable diode emulation and forced PWM operation modes
  • Programmable soft-start timer
  • Support both multiphase and independent channel operations
  • Support urgent shutdown latch

The LM5171 controller provides the high voltage and precision elements of a dual-channel bidirectional converter. Examples include dual battery systems. The LM5171 supports multiphase parallel operation with balanced current sharing in each phase. The LM5171 also supports independent channel bi-directional operations making it versatile as standalone controller operating as multiphase Buck/Boost or independent Buck or Boost.

The dual-channel differential current sense amplifiers and dedicated channel current monitors achieve typical accuracy of 1%. The robust 5A half-bridge gate drivers are capable of driving parallel MOSFETs for scaling more power per channel. The controller can be dynamically programmed to operate in either the diode emulation mode (DEM) or forced PWM (FPWM) mode. Versatile protection features include cycle-by-cycle current limiting, overvoltage protection at both HV and LV ports, and overtemperature protection and urgent shutdown latch.

The LM5171 controller provides the high voltage and precision elements of a dual-channel bidirectional converter. Examples include dual battery systems. The LM5171 supports multiphase parallel operation with balanced current sharing in each phase. The LM5171 also supports independent channel bi-directional operations making it versatile as standalone controller operating as multiphase Buck/Boost or independent Buck or Boost.

The dual-channel differential current sense amplifiers and dedicated channel current monitors achieve typical accuracy of 1%. The robust 5A half-bridge gate drivers are capable of driving parallel MOSFETs for scaling more power per channel. The controller can be dynamically programmed to operate in either the diode emulation mode (DEM) or forced PWM (FPWM) mode. Versatile protection features include cycle-by-cycle current limiting, overvoltage protection at both HV and LV ports, and overtemperature protection and urgent shutdown latch.

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기술 자료

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2개 모두 보기
유형 직함 날짜
* Data sheet LM5171 Dual Channel Bidirectional Controller datasheet PDF | HTML 2024/06/16
Application note U-140 Average Current Mode Control of Switching Power Supplies 1999/09/05

설계 및 개발

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

평가 보드

LM5171EVM-BIDIR — LM5171 평가 모듈

LM5171EVM-BIDIR 평가 모듈(EVM)은 48V~12V 듀얼 배터리 시스템 애플리케이션에 이상적인 2상 인터리브 양방향 컨버터입니다. 인터리빙 각도를 조절할 수 있고 전류 공유가 균형 잡힌 다상 적층이 가능합니다. EVM에는 다양한 사용 사례에 맞게 회로를 구성할 수 있는 다양한 점퍼도 포함되어 있습니다. 여기에는 마이크로컨트롤러나 고전력 단방향 벅 또는 부스트 컨버터로 제어하는 기능이 포함됩니다.
사용 설명서: PDF | HTML
TI.com에서 구매 불가
계산 툴

LM5171-CALC LM5171-Q1 Quickstart Calculator

LM5171-Q1 Quickstart Calculator helps on design of the power stage, current loop and voltage loop. Component calculations for the controller are also included.
지원되는 제품 및 하드웨어

지원되는 제품 및 하드웨어

제품
AC/DC 및 DC/DC 컨트롤러(외장 FET)
LM5171 80V 듀얼 채널 양방향 벅 부스트 컨트롤러 LM5171-Q1 오토모티브, 80V 듀얼 채널 양방향 벅 부스트 컨트롤러
하드웨어 개발
평가 보드
LM5171EVM-BIDIR LM5171 평가 모듈
패키지 CAD 기호, 풋프린트 및 3D 모델
HTQFP (PHP) 48 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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