전원 관리 AC/DC 및 DC/DC 컨트롤러(외장 FET)

LM5125-Q1

미리 보기

Wide-VIN 2.2MHz dual-phase boost controller with VOUT tracking

제품 상세 정보

Vin (min) (V) 2.5 Vin (max) (V) 45 Operating temperature range (°C) -40 to 150 Control mode current mode control Topology Boost Controller Rating Automotive Vout (min) (V) 6 Vout (max) (V) 60 Features AEC-Q100 Automotive Qual, Adjustable current limit, Adjustable soft start, Adjustable switching frequency, Analog current monitor, Automatic Light Load Management, Automotive load dump, Bypass Mode, Chip-enable control pin, Cycle-by-cycle overcurrent protection, External Sync, Forced PWM, Multiphase, Overcurrent protection with adjustable delay, Power good, Programmable dead time, Spread Spectrum, Tracking, Wettable flanks package Iq (typ) (µA) 250 Duty cycle (max) (%) 99.2 TI functional safety category Functional Safety-Compliant
Vin (min) (V) 2.5 Vin (max) (V) 45 Operating temperature range (°C) -40 to 150 Control mode current mode control Topology Boost Controller Rating Automotive Vout (min) (V) 6 Vout (max) (V) 60 Features AEC-Q100 Automotive Qual, Adjustable current limit, Adjustable soft start, Adjustable switching frequency, Analog current monitor, Automatic Light Load Management, Automotive load dump, Bypass Mode, Chip-enable control pin, Cycle-by-cycle overcurrent protection, External Sync, Forced PWM, Multiphase, Overcurrent protection with adjustable delay, Power good, Programmable dead time, Spread Spectrum, Tracking, Wettable flanks package Iq (typ) (µA) 250 Duty cycle (max) (%) 99.2 TI functional safety category Functional Safety-Compliant
VQFN (RHB) 32 25 mm² 5 x 5
  • AEC-Q100 qualified for automotive applications
    • Temperature grade 1: TA = –40°C to +125°C
  • Functional Safety-Capable
  • Input voltage 4.5V to 42V
    • Minimum 2.5V for V(BIAS) ≥ 4.5V or VOUT ≥ 6V
  • Output Voltage 6V to 60V
    • 2% accuracy, internal feedback resistors
    • Bypass operation for VI > VOUT
    • Dynamic output voltage tracking
      • Digital PWM tracking (DTRK)
      • Analog tracking (ATRK)
    • Overvoltage protection (64V, 50V, 35V, 28.5V)
  • Low shutdown IQ of 2µA typ. (5µA maximum)
  • Low operating IQ of 1.4mA typ. (2mA maximum)
  • Stacking with interleaved multiphase operation
    • Up to 4-phases without external clock
  • Switching frequency from 100kHz to 2.2MHz
    • Synchronization to external clock (SYNCIN)
    • Dynamically selectable switching modes (FPWM, diode emulation)
    • Spread spectrum (DRSS)
  • Selectable dead time (18ns to 200ns)
  • Current sense resistor or DCR sensing
  • Average inductor current monitor
  • Average input current limit
    • Programmable current limit
    • Selectable delay time
  • Power-good indicator
  • Programmable VI undervoltage lockout (UVLO)
  • Lead-less VQFN-32 package with wettable flanks
  • AEC-Q100 qualified for automotive applications
    • Temperature grade 1: TA = –40°C to +125°C
  • Functional Safety-Capable
  • Input voltage 4.5V to 42V
    • Minimum 2.5V for V(BIAS) ≥ 4.5V or VOUT ≥ 6V
  • Output Voltage 6V to 60V
    • 2% accuracy, internal feedback resistors
    • Bypass operation for VI > VOUT
    • Dynamic output voltage tracking
      • Digital PWM tracking (DTRK)
      • Analog tracking (ATRK)
    • Overvoltage protection (64V, 50V, 35V, 28.5V)
  • Low shutdown IQ of 2µA typ. (5µA maximum)
  • Low operating IQ of 1.4mA typ. (2mA maximum)
  • Stacking with interleaved multiphase operation
    • Up to 4-phases without external clock
  • Switching frequency from 100kHz to 2.2MHz
    • Synchronization to external clock (SYNCIN)
    • Dynamically selectable switching modes (FPWM, diode emulation)
    • Spread spectrum (DRSS)
  • Selectable dead time (18ns to 200ns)
  • Current sense resistor or DCR sensing
  • Average inductor current monitor
  • Average input current limit
    • Programmable current limit
    • Selectable delay time
  • Power-good indicator
  • Programmable VI undervoltage lockout (UVLO)
  • Lead-less VQFN-32 package with wettable flanks

The LM5125-Q1 is a stackable, multiphase, synchronous, boost controller. The device provides a regulated output voltage for lower or equal input voltage also supporting VI to VOUT bypass mode to save power. Two devices can be stacked with or without external clock.

VOUT can be dynamically programmed using the digital or analog ATRK/DTRK function. VI can be as low as 2.5V after start-up as the internal VCC supply is automatically switched from VBIAS to VOUT for VBIAS < 4.5V. The fixed switching frequency is set between 100kHz and 2.2MHz through a resistor on the RT pin or the SYNCIN clock. The switching modes, FPWM, or diode emulation can be changed during operation.

The implemented protections peak current limit, average input current limit, average inductor current monitor, over and undervoltage protection, or the thermal shutdown protect the device and the application.

The LM5125-Q1 is a stackable, multiphase, synchronous, boost controller. The device provides a regulated output voltage for lower or equal input voltage also supporting VI to VOUT bypass mode to save power. Two devices can be stacked with or without external clock.

VOUT can be dynamically programmed using the digital or analog ATRK/DTRK function. VI can be as low as 2.5V after start-up as the internal VCC supply is automatically switched from VBIAS to VOUT for VBIAS < 4.5V. The fixed switching frequency is set between 100kHz and 2.2MHz through a resistor on the RT pin or the SYNCIN clock. The switching modes, FPWM, or diode emulation can be changed during operation.

The implemented protections peak current limit, average input current limit, average inductor current monitor, over and undervoltage protection, or the thermal shutdown protect the device and the application.

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관심 가지실만한 유사 제품

open-in-new 대안 비교
비교 대상 장치와 유사한 기능
LM5171-Q1 미리 보기 오토모티브, 80V 듀얼 채널 양방향 벅 부스트 컨트롤러 Both can be used as a dual phase boost supporting > 250W output power

기술 자료

star =TI에서 선정한 이 제품의 인기 문서
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2개 모두 보기
유형 직함 날짜
* Data sheet LM5125-Q1, Wide-VIN, Dual-Phase, Automotive, Boost Controller With VOUT Tracking datasheet PDF | HTML 2024/12/02
Functional safety information LM5125-Q1, LM51251-Q1 Functional Safety FIT, FMD and Pin FMA PDF | HTML 2024/11/13

설계 및 개발

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

평가 보드

LM5125EVM-BST — LM5125 평가 모듈

LM5125 평가 모듈은 LM5125-Q1의 넓은 입력 전압 동기 듀얼 위상 부스트 컨트롤러의 기능과 성능을 보여줍니다. 이 EVM은 구성이 용이하도록 설계되어 사용자가 모듈에서 여러 조건을 평가할 수 있습니다. 표준 구성은 24V 및 300W 출력을 제공하도록 설계되었습니다. 출력 전압은 ATRK/DTRK 핀을 통해 동적으로 조정할 수 있습니다.

사용 설명서: PDF | HTML
TI.com에서 구매 불가
애플리케이션 소프트웨어 및 프레임워크

LM5125-DESIGN LM5125 design resources

This resource includes the preliminary calculator and GUIs for LM5125, LM51251, LM5126 and LM51261
지원되는 제품 및 하드웨어

지원되는 제품 및 하드웨어

제품
AC/DC 및 DC/DC 컨트롤러(외장 FET)
LM5125-Q1 Wide-VIN 2.2MHz dual-phase boost controller with VOUT tracking
하드웨어 개발
평가 보드
LM5125EVM-BST LM5125 평가 모듈
계산 툴

LM5125-CALC LM5125 quick start calculator

LM5125 quick start calculator helps on design of the power stage, component selection and loop compensation.
지원되는 제품 및 하드웨어

지원되는 제품 및 하드웨어

제품
AC/DC 및 DC/DC 컨트롤러(외장 FET)
LM5125-Q1 Wide-VIN 2.2MHz dual-phase boost controller with VOUT tracking
패키지 CAD 기호, 풋프린트 및 3D 모델
VQFN (RHB) 32 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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