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

LM5140-Q1

활성

넓은 Vin 듀얼 2.2MHz 저 Iq 동기 벅 컨트롤러

지금 주문
데이터 시트

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
데이터 시트 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 Topology Buck Rating Automotive Vout (min) (V) 1.5 Vout (max) (V) 15 Features Adjustable current limit, Enable, Frequency synchronization, Light Load Efficiency, Multiple Outputs, Phase Interleaving, Power good, Pre-Bias Start-Up, Spread Spectrum, Synchronous Rectification, Tracking, UVLO Fixed Iq (typ) (µA) 35 Duty cycle (max) (%) 96 Number of phases 2
Vin (min) (V) 3.8 Vin (max) (V) 65 Iout (max) (A) 40 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, Multiple Outputs, Phase Interleaving, Power good, Pre-Bias Start-Up, Spread Spectrum, Synchronous Rectification, Tracking, UVLO Fixed Iq (typ) (µA) 35 Duty cycle (max) (%) 96 Number of phases 2
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 자료

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16개 모두 보기
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

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 구매 불가
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 구매 불가
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 및 DC/DC 컨트롤러(외장 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

PMP30267 — 인포테인먼트 시스템용 오토모티브 전원 레퍼런스 설계

This reference design shows a complete power tree for automotive infotainment systems. The LM74700-Q1 provides reverse battery protection to the system and provides immunity to automotive transients specified in ISO 7637-2 and ISO 16750-2. The pre-booster with LM5150-Q1 provides a stable supply (...)
Test report: PDF
회로도: PDF
레퍼런스 디자인

TIDA-01534 — 오토모티브 오프 배터리 이중 위상 부스트 컨버터 레퍼런스 설계

This reference design is a high power, wide input voltage range circuit that uses synchronous boost controllers in a dual-phase configuration outputting four (4) switchable 12-V rails that each can supply up to 2.5 A with diagnostic features; plus a dual synchronous buck that generates two high (...)
Design guide: PDF
회로도: PDF
레퍼런스 디자인

TIDA-01553 — 2.5V 콜드 크랭크 프로필을 지원하는 오토모티브 오프 배터리 VCM 레퍼런스 설계

This reference design is a high-current, wide input voltage range circuit that can handle engine cold crank profile down to 2.5V. The dual-output voltages are 5V and 3.3V that support up to 10A for each output. The design is suitable for an automotive off-battery infotainment application that (...)
Design guide: PDF
회로도: PDF
레퍼런스 디자인

PMP15032 — LM5140-Q1을 지원하는 오토모티브 고전류, 넓은 VIN 동기 벅 컨트롤러 레퍼런스 디자인

PMP15032 demonstrates the operation and performance of the LM5140-Q1 synchronous buck controller in a high current dual-phase application. The PMP15032 operates over the input voltage range of 5.5 to 42V. The EVM provides a 5.0V output with a maximum load current of 45A (22.5A per phase).  (...)
Test report: PDF
회로도: PDF
레퍼런스 디자인

TIDA-00744 — 차량용 인포테인먼트 시스템을 위한 50W 시스템 수준 전원 레퍼런스 디자인

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

PMP10749 — 오토모티브 인포테인먼트 시스템을 위한 100W 시스템 수준 전원 레퍼런스 디자인

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 Ultra Librarian
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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
포함된 정보:
  • 팹 위치
  • 조립 위치

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