전원 관리 AC/DC 및 DC/DC 컨트롤러(외장 FET)

LM5137F-Q1

미리 보기

차량용, 80V, 100% 듀티 사이클, 듀얼 채널 기능 안전 동기 벅 컨트롤러

제품 상세 정보

Vin (min) (V) 4.096 Vin (max) (V) 80 Iout (max) (A) 40 Operating temperature range (°C) -40 to 150 Control mode current mode Topology Buck Rating Automotive Vout (min) (V) 0.8 Vout (max) (V) 70 Features Adjustable current limit, Enable, Frequency synchronization, Light Load Efficiency, Multiple Outputs, Phase Interleaving, Power good, Pre-Bias Start-Up, Spread Spectrum, Synchronous Rectification, UVLO adjustable Iq (typ) (µA) 12 Duty cycle (max) (%) 100 Number of phases 4 TI functional safety category Functional Safety-Compliant
Vin (min) (V) 4.096 Vin (max) (V) 80 Iout (max) (A) 40 Operating temperature range (°C) -40 to 150 Control mode current mode Topology Buck Rating Automotive Vout (min) (V) 0.8 Vout (max) (V) 70 Features Adjustable current limit, Enable, Frequency synchronization, Light Load Efficiency, Multiple Outputs, Phase Interleaving, Power good, Pre-Bias Start-Up, Spread Spectrum, Synchronous Rectification, UVLO adjustable Iq (typ) (µA) 12 Duty cycle (max) (%) 100 Number of phases 4 TI functional safety category Functional Safety-Compliant
VQFN (RHA) 36 36 mm² 6 x 6
  • AEC-Q100 qualified for automotive applications:
    • Device temperature grade 1: –40°C to 125°C ambient operating temperature
  • Functional Safety-Compliant targeted
    • Developed for functional safety applications
      • Three orderable part numbers for Capable, ASIL B, and ASIL D options
    • Documentation available to aid ISO 26262 system design up to ASIL D will be available upon production release
    • Systematic capability up to ASIL D targeted
    • Hardware integrity up to ASIL D targeted
  • Versatile dual synchronous buck DC/DC controller
    • 1% accurate, fixed 3.3V, 5V, 12V, or adjustable outputs from 0.8V to 60V
    • Current monitor output for each channel
    • Charge-pump gate drivers for 100% duty cycle
    • No-load sleep current of 12.7µA (typical)
    • Internal hiccup-mode overcurrent protection
  • Two interleaved synchronous buck channels
    • Dual channel or single-output multiphase
    • Stackable up to four phases
  • Designed for ultra-low EMI requirements
    • Dual Random Spread Spectrum (DRSS)
    • Switching frequency from 100kHz to 2.5MHz
  • VQFN-36 package with wettable flanks
  • Create a custom design using the LM5137F-Q1 with WEBENCH Power Designer
  • AEC-Q100 qualified for automotive applications:
    • Device temperature grade 1: –40°C to 125°C ambient operating temperature
  • Functional Safety-Compliant targeted
    • Developed for functional safety applications
      • Three orderable part numbers for Capable, ASIL B, and ASIL D options
    • Documentation available to aid ISO 26262 system design up to ASIL D will be available upon production release
    • Systematic capability up to ASIL D targeted
    • Hardware integrity up to ASIL D targeted
  • Versatile dual synchronous buck DC/DC controller
    • 1% accurate, fixed 3.3V, 5V, 12V, or adjustable outputs from 0.8V to 60V
    • Current monitor output for each channel
    • Charge-pump gate drivers for 100% duty cycle
    • No-load sleep current of 12.7µA (typical)
    • Internal hiccup-mode overcurrent protection
  • Two interleaved synchronous buck channels
    • Dual channel or single-output multiphase
    • Stackable up to four phases
  • Designed for ultra-low EMI requirements
    • Dual Random Spread Spectrum (DRSS)
    • Switching frequency from 100kHz to 2.5MHz
  • VQFN-36 package with wettable flanks
  • Create a custom design using the LM5137F-Q1 with WEBENCH Power Designer

The LM5137F-Q1 is an 80V dual-channel buck controller offered frrom a family with three options for functional safety: Capable, ASIL B, or ASIL D. The device uses an interleaved, stackable, peak current-mode architecture for easy loop compensation, fast transient response, excellent load and line regulation, and accurate current sharing with paralleled phases for high output current. A high-side switch minimum on-time of 15ns facilitates large step-down ratios, enabling the direct conversion from 12V, 24V or 48V automotive inputs to low-voltage rails for reduced system design cost and complexity. The LM5137F-Q1 continues operating during input voltage dips as low as 4V, at 100% duty cycle if needed.

Several features are included to simplify compliance with CISPR 25 and automotive EMI requirements. Adaptively timed, high-current MOSFET gate drivers minimize body diode conduction during switching transitions, reducing switching losses and improving thermal and EMI performance at high input voltage and high switching frequency. To reduce input capacitor ripple current and EMI filter size, 180° interleaved operation is provided for two outputs. A 90° out-of-phase clock output works well for cascaded, multi-channel or multiphase power stages. Resistor-adjustable switching frequency as high as 2.2MHz can be synchronized to an external clock source up to 2.5MHz to eliminate beat frequencies in noise-sensitive applications.

The 12.7µA no-load quiescent current with the output voltage in regulation extends operating run-time in battery-powered automotive systems. Additional features of the LM5137F-Q1 include 150°C maximum junction temperature operation, user-selectable PFM mode for lower current consumption at light-load conditions, configurable soft-start functions, open-drain PG and FAULT flags for fault reporting and output monitoring, independent enable inputs, monotonic start-up into prebiased loads, integrated VCC bias supply regulator powered from VIN or BIAS1/VOUT1, hiccup-mode overload protection, and thermal shutdown protection with automatic recovery. Current is sensed using the inductor DCR for highest efficiency or an optional shunt resistor for high accuracy.

The LM5137F-Q1 controller is qualified to AEC-Q100 grade 1 for automotive applications and comes in a 6mm × 6mm thermally-enhanced, 36-pin VQFN package with additional pin clearance for increased reliability and wettable flank pins to facilitate optical inspection during manufacturing. The wide input voltage range, low quiescent current consumption, high-temperature operation, cycle-by-cycle current limit, low EMI signature, and small design size provide an excellent point-of-load regulator solution for functional safety (FuSa) applications requiring enhanced robustness and durability.

The LM5137F-Q1 is an 80V dual-channel buck controller offered frrom a family with three options for functional safety: Capable, ASIL B, or ASIL D. The device uses an interleaved, stackable, peak current-mode architecture for easy loop compensation, fast transient response, excellent load and line regulation, and accurate current sharing with paralleled phases for high output current. A high-side switch minimum on-time of 15ns facilitates large step-down ratios, enabling the direct conversion from 12V, 24V or 48V automotive inputs to low-voltage rails for reduced system design cost and complexity. The LM5137F-Q1 continues operating during input voltage dips as low as 4V, at 100% duty cycle if needed.

Several features are included to simplify compliance with CISPR 25 and automotive EMI requirements. Adaptively timed, high-current MOSFET gate drivers minimize body diode conduction during switching transitions, reducing switching losses and improving thermal and EMI performance at high input voltage and high switching frequency. To reduce input capacitor ripple current and EMI filter size, 180° interleaved operation is provided for two outputs. A 90° out-of-phase clock output works well for cascaded, multi-channel or multiphase power stages. Resistor-adjustable switching frequency as high as 2.2MHz can be synchronized to an external clock source up to 2.5MHz to eliminate beat frequencies in noise-sensitive applications.

The 12.7µA no-load quiescent current with the output voltage in regulation extends operating run-time in battery-powered automotive systems. Additional features of the LM5137F-Q1 include 150°C maximum junction temperature operation, user-selectable PFM mode for lower current consumption at light-load conditions, configurable soft-start functions, open-drain PG and FAULT flags for fault reporting and output monitoring, independent enable inputs, monotonic start-up into prebiased loads, integrated VCC bias supply regulator powered from VIN or BIAS1/VOUT1, hiccup-mode overload protection, and thermal shutdown protection with automatic recovery. Current is sensed using the inductor DCR for highest efficiency or an optional shunt resistor for high accuracy.

The LM5137F-Q1 controller is qualified to AEC-Q100 grade 1 for automotive applications and comes in a 6mm × 6mm thermally-enhanced, 36-pin VQFN package with additional pin clearance for increased reliability and wettable flank pins to facilitate optical inspection during manufacturing. The wide input voltage range, low quiescent current consumption, high-temperature operation, cycle-by-cycle current limit, low EMI signature, and small design size provide an excellent point-of-load regulator solution for functional safety (FuSa) applications requiring enhanced robustness and durability.

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추가 정보 요청

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평가 보드

LM25137F-Q1-EVM5D3 — LM25137F-Q1 평가 모듈

LM25137-Q1-EVM5D3 평가 모듈(EVM)은 최대 ASIL D 또는 SIL 3의 기능 안전 애플리케이션을 위한 LM(2)5137-Q1 듀얼 동기 벅 컨트롤러를 보여줄 수 있도록 설계되었습니다. EVM은 6.5V~36V의 넓은 입력 전압 범위에서 작동하여 출력당 최대 20A의 부하 전류에서 1% 이상의 설정값 정확도로 5V 및 3.3V의 조정된 출력을 제공합니다.
사용 설명서: PDF | HTML
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계산 툴

LM5137-LM25137-DESIGN-CALC — LM5137/-Q1 and LM25137/-Q1 컨트롤러 빠른 시작 설계 툴

기능 안전 애플리케이션을 위해 설계된 LM5137, LM5137-Q1, LM25137 및 LM25137-Q1 컨트롤러 제품군의 빠른 시작 설계 툴에 오신 것을 환영합니다. 이 독립형 툴은 단일 또는 듀얼 출력 구성에서 DC/DC 벅 레귤레이터 설계를 통해 전원 공급 장치 엔지니어를 원활하게 지원합니다. 따라서 사용자는 애플리케이션 요구 사항을 충족하기 위해 최적화된 설계에 신속하게 도착할 수 있습니다.
PCB 레이아웃

LM5137-Q1 EVM PCB Layout Files

SNVMCE0.ZIP (1987 KB)
패키지 CAD 기호, 풋프린트 및 3D 모델
VQFN (RHA) 36 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

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