홈 전원 관리 AC/DC & DC/DC controllers (external FET)
홈
전원 관리
AC/DC & DC/DC controllers (external FET)

LM5140-Q1

활성

넓은 Vin 듀얼 2.2MHz 저 Iq 동기 벅 컨트롤러

지금 주문
데이터시트

이 제품의 최신 버전이 있습니다

open-in-new 대안 비교
다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능
LM5143A-Q1 활성 오토모티브 3.5V~65V 저 IQ, 듀얼 출력, 적층형 동기 벅 DC-DC 컨트롤러 Recommended for new designs.
LM5148-Q1 활성 초저 IQ를 지원하는 오토모티브 80V 동기식 벅 DC/DC 컨트롤러 Single output stackable to two phases, smaller footprint, lower IQ, and greater efficiency.

LM5140-Q1

활성
데이터시트 지금 주문

제품 상세 정보

Vin (min) (V) 3.8 Vin (max) (V) 65 Iout (max) (A) 40 Operating temperature range (°C) -40 to 150 Control mode current mode Rating Automotive Vout (min) (V) 1.5 Vout (max) (V) 15 Iq (typ) (A) 0.000035 Duty cycle (max) (%) 96
Vin (min) (V) 3.8 Vin (max) (V) 65 Iout (max) (A) 40 Operating temperature range (°C) -40 to 150 Control mode current mode Rating Automotive Vout (min) (V) 1.5 Vout (max) (V) 15 Iq (typ) (A) 0.000035 Duty cycle (max) (%) 96
VQFNP (RWG) 40 36 mm² 6 x 6
  • Qualified for Automotive Applications
  • AEC-Q100 Test Guidance With the Following
    • Device Temperature Grade 1: –40°;C to +125°;C Ambient Operating Temperature
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C4B
  • Input Operating Range from 3.8 V to 65 V (70 V Absolute Maximum)
  • Two Interleaved Buck Controllers With:
    • VOUT1 Fixed 3.3 V, 5 V, or Adjustable from 1.5 V – 15 V, Accuracy ±1%
    • VOUT2 Fixed 5 V, 8 V, or Adjustable from 1.5 V – 15 V, Accuracy ±1%
  • Fixed 2.2-MHz or 440-kHz Switching Frequency, Accuracy ±7%
  • Optional Synchronization to an External Clock
  • SYNC Output Clock for Additional Converters
  • Shutdown Mode Current: 9 µA Typical
  • No Load Standby Current: 35 µA Typical (One Channel Operating)
  • Current Limit Threshold Programmable to 50 mV or 75 mV, Accuracy ±10%
  • Independent Enable Inputs for VOUT1 and VOUT2
  • Hiccup Mode Protection for Sustained Overload
  • Independent Power Good Outputs
  • High-Side and Low-Side Gate Drivers With Adjustable Slew Rate Control
  • Selectable Diode Emulation or Continuous Conduction at Light Load
  • 40-Pin VQFN Package With Wettable Flanks
  • Qualified for Automotive Applications
  • AEC-Q100 Test Guidance With the Following
    • Device Temperature Grade 1: –40°;C to +125°;C Ambient Operating Temperature
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C4B
  • Input Operating Range from 3.8 V to 65 V (70 V Absolute Maximum)
  • Two Interleaved Buck Controllers With:
    • VOUT1 Fixed 3.3 V, 5 V, or Adjustable from 1.5 V – 15 V, Accuracy ±1%
    • VOUT2 Fixed 5 V, 8 V, or Adjustable from 1.5 V – 15 V, Accuracy ±1%
  • Fixed 2.2-MHz or 440-kHz Switching Frequency, Accuracy ±7%
  • Optional Synchronization to an External Clock
  • SYNC Output Clock for Additional Converters
  • Shutdown Mode Current: 9 µA Typical
  • No Load Standby Current: 35 µA Typical (One Channel Operating)
  • Current Limit Threshold Programmable to 50 mV or 75 mV, Accuracy ±10%
  • Independent Enable Inputs for VOUT1 and VOUT2
  • Hiccup Mode Protection for Sustained Overload
  • Independent Power Good Outputs
  • High-Side and Low-Side Gate Drivers With Adjustable Slew Rate Control
  • Selectable Diode Emulation or Continuous Conduction at Light Load
  • 40-Pin VQFN Package With Wettable Flanks

The LM5140-Q1 is a dual synchronous buck controller intended for high voltage wide VIN step-down converter applications. The control method is based on current mode control. Current mode control provides inherent line feedforward, cycle-by-cycle current limiting, and easier loop compensation.

The LM5140-Q1 features adjustable slew rate control to simplify compliance with the CISPR and automotive EMI requirements. The LM5140-Q1 operates at selectable switching frequencies of 2.2 MHz or 440 kHz with the two controller channels switching 180°; out of phase. In light or no-load conditions, the LM5140-Q1 operates in skip cycle mode for improved low power efficiency. The LM5140-Q1 includes a high voltage bias regulator with automatic switchover to an external bias supply to improve efficiency and reduce input current. Additional features include frequency synchronization, cycle-by-cycle current limit, hiccup mode fault protection for sustained overloads, independent power good outputs, and independent enable inputs.

The LM5140-Q1 is a dual synchronous buck controller intended for high voltage wide VIN step-down converter applications. The control method is based on current mode control. Current mode control provides inherent line feedforward, cycle-by-cycle current limiting, and easier loop compensation.

The LM5140-Q1 features adjustable slew rate control to simplify compliance with the CISPR and automotive EMI requirements. The LM5140-Q1 operates at selectable switching frequencies of 2.2 MHz or 440 kHz with the two controller channels switching 180°; out of phase. In light or no-load conditions, the LM5140-Q1 operates in skip cycle mode for improved low power efficiency. The LM5140-Q1 includes a high voltage bias regulator with automatic switchover to an external bias supply to improve efficiency and reduce input current. Additional features include frequency synchronization, cycle-by-cycle current limit, hiccup mode fault protection for sustained overloads, independent power good outputs, and independent enable inputs.
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기술 문서

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모두 보기16
유형 직함 날짜
* Data sheet LM5140-Q1 Wide Input Range Dual Synchronous Buck Controller datasheet (Rev. A) PDF | HTML 2016/12/20
Analog Design Journal Control-Mode Quick Reference Guide (Rev. B) PDF | HTML 2023/08/29
Selection guide Automotive Infotainment EE Buck Converter/Controller Selection Guide (Rev. B) 2021/04/15
Selection guide Buck Converter Quick Reference Guide (Rev. B) 2021/04/08
White paper Valuing wide VIN, low EMI synchronous buck circuits for cost-driven, demanding a (Rev. A) 2019/04/10
Application brief Improve DC/DC Regulator EMI for Free with Optimized Power Stage Layout 2017/11/13
Technical article How to use dual buck controllers to power PMICs in automotive applications PDF | HTML 2017/11/08
Technical article Create a power supply for an MRI application PDF | HTML 2017/08/14
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
Technical article How to use slew rate for EMI control PDF | HTML 2016/03/21
Technical article How to extend a controller’s output-voltage range PDF | HTML 2016/03/20
EVM User's guide LM5140-Q1 High Density EVM User’s Guide 2016/02/17
Application note Maintaining Output Voltage Regulation During Automotive Cold-Crank with LM5140 2016/01/13
EVM User's guide LM5140 EVM User's Guide 2016/01/12
Analog Design Journal Benefits of a multiphase buck converter 2012/01/31

설계 및 개발

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

평가 보드

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J6Entry, RSP and TDA2E-17 CPU Board EVM is an evaluation platform designed to speed up development efforts and reduce time to market for Infotainment  reconfigurable Digital Cluster or Integrated Digital Cockpit and ADAS applications. The CPU board integrates key peripherals such as parallel (...)
파트너 사이트 방문
평가 보드

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The main CPU board integrates these key peripherals such as Ethernet or HDMI, while (...)

파트너 사이트 방문
평가 보드

LM5140RWGEVM — LM5140RWGEVM 듀얼 동기 벅 컨버터 EVM

The LM5140RWGEVM evaluation board provides a fully functional buck power supply, employing peak current mode control. The evaluation board provides two independent outputs, a 3.3V @ 6A and a 5.0V @ 5A. The nonomal input voltage range is 8V-18V, with an extended operating range of 3.8V to 42V.  (...)

사용 설명서: PDF
TI.com에서 구매할 수 없습니다
평가 보드

LM5140RWGEVMHD — LM5140QRWGRQ1 듀얼 동기 벅 컨버터 고밀도 평가 모듈(EVM)

The LM5140RWGEVMHD evaluation board provides a fully functional buck power supply, employing peak current mode control. The evaluation board provides two independent outputs, a 3.3V @ 5.0A and a 5.0V @ 5A.
사용 설명서: PDF
TI.com에서 구매할 수 없습니다
시뮬레이션 모델

LM5140 PSpice Transient Model (Rev. B)

SNVMAJ7B.ZIP (91 KB) - PSpice Model
다운로드
계산 툴

LM5140ADESIGN-CALC — LM5140 Dual Synchronous Buck Controller Design Tool - Quick Start Calculator

Welcome to the LM5140-1 quickstart design tool. This standalone tool facilitates and assists the power supply engineer with the design of a DC/DC synchronous buck converter based on the LM5140-Q1 current-mode controller. As such, the user can expeditiously arrive at an optimized design to meet (...)

지원되는 제품 및 하드웨어

지원되는 제품 및 하드웨어

제품
AC/DC & DC/DC controllers (external FET)
LM5140-Q1 — 넓은 Vin 듀얼 2.2MHz 저 Iq 동기 벅 컨트롤러
하드웨어 개발
평가 보드
LM5140RWGEVM — LM5140RWGEVM 듀얼 동기 벅 컨버터 EVM LM5140RWGEVMHD — LM5140QRWGRQ1 듀얼 동기 벅 컨버터 고밀도 평가 모듈(EVM)
소프트웨어
계산 툴
LM5140ADESIGN-CALC — LM5140-Q1용 빠른 시작 계산기
다운로드
레퍼런스 디자인

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Test report: PDF
회로도: PDF
레퍼런스 디자인

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Design guide: PDF
회로도: PDF
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Design guide: PDF
회로도: PDF
레퍼런스 디자인

PMP20440 — 오토모티브 오디오용 이중 위상 동기 벅 컨버터 레퍼런스 설계

PMP20440 is a dual phase synchronous buck converter reference design for 12V output at 11A from an input voltage of 6V to 17V. At an input voltage of 12V or less the output will follow with a small voltage drop. This design uses the LM5140-Q1 dual phase synchronous buck controller at a (...)
Test report: PDF
회로도: PDF
레퍼런스 디자인

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PMP10655 is a dual-output synchronous buck converter reference design using the LM5140 controller IC. The reference design accepts an input voltage between 6Vin and 18Vin and is capable of supplying a maximum of 8A of continuous current (14A Peak) to the load, per output. Vout1 and Vout2 maintain (...)
Test report: PDF
회로도: PDF
레퍼런스 디자인

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Test report: PDF
회로도: PDF
레퍼런스 디자인

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Test report: PDF
회로도: PDF
레퍼런스 디자인

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TIDA-00744 is a 50-W system-level SMPS design for mid-power automotive infotainment systems.
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회로도: PDF
레퍼런스 디자인

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PMP10749 is a 100-W system-level SMPS design for a higher-power automotive infotainment system. The design has protections, such as load dump through TVS (ISO pulse testing), as well as reverse voltage (innovative smart diode with very low Iq) protection. Furthermore, all the controllers (boost and (...)
Test report: PDF
회로도: PDF
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VQFNP (RWG) 40 옵션 보기
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포함된 정보:
  • RoHS
  • REACH
  • 디바이스 마킹
  • 납 마감/볼 재질
  • MSL 등급/피크 리플로우
  • MTBF/FIT 예측
  • 물질 성분
  • 인증 요약
  • 지속적인 신뢰성 모니터링
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  • 조립 위치

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