홈 전원 관리 AC/DC 및 DC/DC 컨트롤러(외장 FET)
홈
전원 관리
AC/DC 및 DC/DC 컨트롤러(외장 FET)

LM5141-Q1

활성

오토모티브 넓은 입력 2.2MHz 저 IQ 동기 벅 컨트롤러

지금 주문
데이터 시트

LM5141-Q1

활성
데이터 시트 지금 주문

제품 상세 정보

Vin (min) (V) 3.8 Vin (max) (V) 65 Iout (max) (A) 30 Operating temperature range (°C) -40 to 150 Control mode current mode Topology Buck Rating Automotive Vout (min) (V) 1.5 Vout (max) (V) 15 Features Adjustable current limit, Enable, Frequency synchronization, Light Load Efficiency, Power good, Pre-Bias Start-Up, Spread Spectrum, Synchronous Rectification, Tracking, UVLO Fixed Iq (typ) (µA) 35 Duty cycle (max) (%) 78 Number of phases 1 TI functional safety category Functional Safety-Capable
Vin (min) (V) 3.8 Vin (max) (V) 65 Iout (max) (A) 30 Operating temperature range (°C) -40 to 150 Control mode current mode Topology Buck Rating Automotive Vout (min) (V) 1.5 Vout (max) (V) 15 Features Adjustable current limit, Enable, Frequency synchronization, Light Load Efficiency, Power good, Pre-Bias Start-Up, Spread Spectrum, Synchronous Rectification, Tracking, UVLO Fixed Iq (typ) (µA) 35 Duty cycle (max) (%) 78 Number of phases 1 TI functional safety category Functional Safety-Capable
VQFN (RGE) 24 16 mm² 4 x 4
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C4B
  • VIN: 3.8 V to 65 V (70 V Absolute Maximum)
  • Output: Fixed 3.3 V, 5 V, or Adjustable From
    1.5 V to 15 V with ±0.8% Accuracy
  • Fixed 2.2-MHz or 440-kHz Switching Frequency with ±5% Accuracy
  • High-Side and Low-Side Gate Drive With Slew-Rate Control
  • Optional Frequency Shift by Varying an Analog Voltage or RT Resistor
  • Optional Synchronization to an External Clock
  • Optional Spread Spectrum
  • Shutdown Mode IQ: 10 µA Typical
  • Low Standby Mode IQ: 35 µA Typical
  • 75-mV Current Limit Threshold with ±0.9% Accuracy
  • External Resistor or DCR Current Sensing
  • Output Enable Logic Input
  • Hiccup Mode for Sustained Overload
  • Power-Good Indication Output
  • Selectable Diode Emulation or Forced Pulse-Width Modulation
  • 24-pin VQFN Package With Wettable Flanks
  • Create a Custom Design Using the LM5141-Q1 With the WEBENCH® Power Designer
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C4B
  • VIN: 3.8 V to 65 V (70 V Absolute Maximum)
  • Output: Fixed 3.3 V, 5 V, or Adjustable From
    1.5 V to 15 V with ±0.8% Accuracy
  • Fixed 2.2-MHz or 440-kHz Switching Frequency with ±5% Accuracy
  • High-Side and Low-Side Gate Drive With Slew-Rate Control
  • Optional Frequency Shift by Varying an Analog Voltage or RT Resistor
  • Optional Synchronization to an External Clock
  • Optional Spread Spectrum
  • Shutdown Mode IQ: 10 µA Typical
  • Low Standby Mode IQ: 35 µA Typical
  • 75-mV Current Limit Threshold with ±0.9% Accuracy
  • External Resistor or DCR Current Sensing
  • Output Enable Logic Input
  • Hiccup Mode for Sustained Overload
  • Power-Good Indication Output
  • Selectable Diode Emulation or Forced Pulse-Width Modulation
  • 24-pin VQFN Package With Wettable Flanks
  • Create a Custom Design Using the LM5141-Q1 With the WEBENCH® Power Designer

The LM5141-Q1 is a synchronous buck controller, intended for high voltage wide VIN step-down converter applications. The control method is peak current mode control. Current mode control provides inherent line feed-forward, cycle-by-cycle current limiting, and ease-of-loop compensation. The LM5141-Q1 features slew rate control to simplify the compliance with CISPR and automotive EMI requirements.

The LM5141-Q1 has two selectable switching frequencies: 2.2 MHz and 440 kHz. Gate drivers with slew rate Control that can be adjusted to reduce EMI.

In light or no-load conditions, the LM5141-Q1 operates in skip cycle mode for improved low power efficiency. The LM5141-Q1 has a high voltage bias regulator with automatic switch-over to an external bias to reduce the IQ current from VIN. Additional features include frequency synchronization, cycle-by-cycle current limit, hiccup mode fault protection for sustained overload, and power good output.

The LM5141-Q1 is a synchronous buck controller, intended for high voltage wide VIN step-down converter applications. The control method is peak current mode control. Current mode control provides inherent line feed-forward, cycle-by-cycle current limiting, and ease-of-loop compensation. The LM5141-Q1 features slew rate control to simplify the compliance with CISPR and automotive EMI requirements.

The LM5141-Q1 has two selectable switching frequencies: 2.2 MHz and 440 kHz. Gate drivers with slew rate Control that can be adjusted to reduce EMI.

In light or no-load conditions, the LM5141-Q1 operates in skip cycle mode for improved low power efficiency. The LM5141-Q1 has a high voltage bias regulator with automatic switch-over to an external bias to reduce the IQ current from VIN. Additional features include frequency synchronization, cycle-by-cycle current limit, hiccup mode fault protection for sustained overload, and power good output.

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기술 자료

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13개 모두 보기
유형 직함 날짜
* Data sheet LM5141-Q1 Wide Input Range Synchronous Buck Controller datasheet (Rev. D) PDF | HTML 2017/12/18
Application note Controller to Converter – Design Considerations for 24V and 48V Systems PDF | HTML 2024/10/02
Functional safety information LM25141-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA (Rev. A) PDF | HTML 2022/05/10
Functional safety information LM5141-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 2022/04/05
E-book An Engineer’s Guide to Low EMI in DC/DC Regulators 2021/04/21
White paper Valuing wide VIN, low EMI synchronous buck circuits for cost-driven, demanding a (Rev. A) 2019/04/10
White paper An overview of radiated EMI specifications for power supplies 2018/06/05
White paper An overview of conducted EMI specifications for power supplies 2018/02/01
EVM User's guide LM5141-Q1 EVM User’s Guide (Rev. A) 2018/01/10
Application brief Improve DC/DC Regulator EMI for Free with Optimized Power Stage Layout 2017/11/13
Test report PMP15019 Test Results 2017/02/28
Analog Design Journal Designing the front-end DC/DC conversion stage to withstand automotive transient 2017/01/18
Analog Design Journal Reduce buck-converter EMI and voltage stress by minimizing inductive parasitics 2016/07/21

설계 및 개발

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평가 보드

LM5141QRGEVM — LM5141QRG 동기 벅 컨버터 평가 모듈

The LM5141QRGEVM evaluation board provides a fully functional buck power supply, employing peak current mode control. The evaluation board provides a 5.0V @ 5A. The nonomal input voltage range is 8V-18V.
사용 설명서: PDF
TI.com에서 구매 불가
시뮬레이션 모델

LM5141-Q1 and LM25141-Q1 PSpice Transient Model (Rev. A)

SNVMAU4A.ZIP (123 KB) - PSpice Model
다운로드
계산 툴

LM5141DESIGN-CALC — LM5141-Q1 controller quickstart design tool

Welcome to the LM5141-Q1 quickstart design tool. This standalone tool facilitates and assists the power supply engineer with design of a DC/DC buck regulator based on the LM5141-Q1 65-V synchronous buck DC/DC controller with low IQ. As such, the user can expeditiously arrive at an optimized design (...)
지원되는 제품 및 하드웨어

지원되는 제품 및 하드웨어

제품
AC/DC 및 DC/DC 컨트롤러(외장 FET)
LM5141 — 저 Iq, 넓은 입력 범위의 동기 벅 컨트롤러 LM5141-Q1 — 오토모티브 넓은 입력 2.2MHz 저 IQ 동기 벅 컨트롤러
하드웨어 개발
평가 보드
LM5141QRGEVM — LM5141QRG 동기 벅 컨버터 평가 모듈
소프트웨어
계산 툴
LM5141DESIGN-CALC — LM5141-Q1 컨트롤러 빠른 시작 설계 툴
다운로드
레퍼런스 디자인

TIDA-01413 — 두 개의 4Gbps 쿼드 디시리얼라이저를 갖춘 ADAS 8채널 센서 퓨전 허브 레퍼런스 설계

This sensor fusion hub reference design allows the connection of up to four 2-megapixel cameras and up to four radar modules over coaxial cable. This design utilizes these coaxial cables to provide power, backchannel communication, and clock synchronization to the sensors. The two 4 Gbps FPD-Link (...)
Design guide: PDF
회로도: PDF
레퍼런스 디자인

PMP15019 — LM5141-Q1을 지원하는 오토모티브 고전류, 넓은 VIN 동기 벅 컨트롤러 레퍼런스 디자인

PMP15019 uses the LM5141-Q1 low Iq synchronous buck controller as the centerpiece of a high current automotive DC/DC power supply. The PMP15019 operates over the input voltage range of VOUT + 0.5V to 42V. The EVM provides a 5.0V output (default) with a maximum load current of 15A, 20A (...)
Test report: PDF
회로도: PDF
레퍼런스 디자인

PMP21795 — 오토모티브 EMI 및 열 최적화 동기 벅 컨버터 레퍼런스 설계

This reference design is an EMI and thermally optimized synchronous buck converter for automotive applications. The circuit is powered from the nominal 12-V battery to provide an output voltage of 3.3 V at 8 A. The design uses a synchronous buck controller operating at a switching frequency of 440 (...)
Test report: PDF
회로도: PDF
레퍼런스 디자인

PMP15041 — 2.2MHz에서 작동하는 25W 차량용 시동-정지 레퍼런스 설계

Automotive 12V batteries typically operate in the range of 9V-16V. However this voltage can vary widely due to transient conditions such as cold crank and load dump. This reference design creates a well-regulated 25W (5V,5A) output, regardless of large input voltage transients, utilizing the (...)
Test report: PDF
회로도: PDF
레퍼런스 디자인

PMP20682 — 차량용 클러스터용 동기 벅 컨버터 레퍼런스 설계

PMP20682 is a synchronous buck converter reference design utilizing the LM5141-Q1 synchronous buck controller I.C. The design accepts an input voltage of 5V to 40V and provides a 3.3V output capable of supplying 10A of current to the load. An EMI filter is incorporated on the input. Optional (...)
Test report: PDF
회로도: PDF
레퍼런스 디자인

PMP20818 — 스토리지 서버용 137W 저장 컨버터 레퍼런스 설계

PMP20818 is a holdup reference design that uses the LM3481 non-synchronous boost and LM5141-Q1 synchronous buck controllers. When the 12V input supply is available, the buck converter is disabled, and the boost converter charges a capacitive holdup bank. In the event of a power outage, the boost (...)
Test report: PDF
회로도: PDF
레퍼런스 디자인

PMP30339 — 3.3V @ 12.0A를 지원하는 오토모티브 동기 벅 레퍼런스 디자인

This automotive single-phase synchronous buck converter provides 3.3 V at 12 A from an input voltage range of 9 V to 18 V. The extended input voltage range for short-time operation is 4.5 V to 32 V.
Test report: PDF
회로도: PDF
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VQFN (RGE) 24 Ultra Librarian
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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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