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

LM5117

활성

아날로그 전류 모니터를 지원하는 5.5~65V의 넓은 Vin, 전류 모드 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
LM5141 활성 저 Iq, 넓은 입력 범위의 동기 벅 컨트롤러 Optional spread spectrum for improved EMI.

LM5117

활성
데이터 시트 지금 주문

제품 상세 정보

Vin (min) (V) 5.5 Vin (max) (V) 65 Iout (max) (A) 20 Operating temperature range (°C) -40 to 125 Control mode current mode Topology Buck Rating Catalog Vout (min) (V) 0.8 Vout (max) (V) 62 Features Adjustable current limit, Enable, Frequency synchronization, Light Load Efficiency, Synchronous Rectification, Tracking, UVLO adjustable Iq (typ) (µA) 4800 Duty cycle (max) (%) 98 Number of phases 1
Vin (min) (V) 5.5 Vin (max) (V) 65 Iout (max) (A) 20 Operating temperature range (°C) -40 to 125 Control mode current mode Topology Buck Rating Catalog Vout (min) (V) 0.8 Vout (max) (V) 62 Features Adjustable current limit, Enable, Frequency synchronization, Light Load Efficiency, Synchronous Rectification, Tracking, UVLO adjustable Iq (typ) (µA) 4800 Duty cycle (max) (%) 98 Number of phases 1
HTSSOP (PWP) 20 41.6 mm² 6.5 x 6.4 WQFN (RTW) 24 16 mm² 4 x 4
  • LM5117-Q1 is Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: -40°C to 125°C
      Ambient Operating Temperature Range
  • Emulated Peak Current Mode Control
  • Wide Operating Range from 5.5 V to 65 V
  • Robust 3.3-A Peak Gate Drives
  • Adaptive Dead-Time Output Driver Control
  • Free-Run or Synchronizable Clock up to 750 kHz
  • Optional Diode Emulation Mode
  • Programmable Output from 0.8 V
  • Precision 1.5% Voltage Reference
  • Analog Current Monitor
  • Programmable Current Limit
  • Hiccup Mode Overcurrent Protection
  • Programmable Soft-Start and Tracking
  • Programmable Line Undervoltage Lockout
  • Programmable Switchover to External Bias Supply
  • Thermal Shutdown
  • LM5117-Q1 is Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: -40°C to 125°C
      Ambient Operating Temperature Range
  • Emulated Peak Current Mode Control
  • Wide Operating Range from 5.5 V to 65 V
  • Robust 3.3-A Peak Gate Drives
  • Adaptive Dead-Time Output Driver Control
  • Free-Run or Synchronizable Clock up to 750 kHz
  • Optional Diode Emulation Mode
  • Programmable Output from 0.8 V
  • Precision 1.5% Voltage Reference
  • Analog Current Monitor
  • Programmable Current Limit
  • Hiccup Mode Overcurrent Protection
  • Programmable Soft-Start and Tracking
  • Programmable Line Undervoltage Lockout
  • Programmable Switchover to External Bias Supply
  • Thermal Shutdown

The LM5117 is a synchronous buck controller intended for step-down regulator applications from a high voltage or widely varying input supply. The control method is based upon current mode control utilizing an emulated current ramp. Current mode control provides inherent line feed-forward, cycle-by-cycle current limiting and ease of loop compensation. The use of an emulated control ramp reduces noise sensitivity of the pulse-width modulation circuit, allowing reliable control of very small duty cycles necessary in high input voltage applications.

The operating frequency is programmable from 50 kHz to 750 kHz. The LM5117 drives external high-side and low-side NMOS power switches with adaptive dead-time control. A user-selectable diode emulation mode enables discontinuous mode operation for improved efficiency at light load conditions. A high voltage bias regulator that allows external bias supply further improves efficiency. The LM5117’s unique analog telemetry feature provides average output current information. Additional features include thermal shutdown, frequency synchronization, hiccup mode current limit, and adjustable line undervoltage lockout.

The LM5117 is a synchronous buck controller intended for step-down regulator applications from a high voltage or widely varying input supply. The control method is based upon current mode control utilizing an emulated current ramp. Current mode control provides inherent line feed-forward, cycle-by-cycle current limiting and ease of loop compensation. The use of an emulated control ramp reduces noise sensitivity of the pulse-width modulation circuit, allowing reliable control of very small duty cycles necessary in high input voltage applications.

The operating frequency is programmable from 50 kHz to 750 kHz. The LM5117 drives external high-side and low-side NMOS power switches with adaptive dead-time control. A user-selectable diode emulation mode enables discontinuous mode operation for improved efficiency at light load conditions. A high voltage bias regulator that allows external bias supply further improves efficiency. The LM5117’s unique analog telemetry feature provides average output current information. Additional features include thermal shutdown, frequency synchronization, hiccup mode current limit, and adjustable line undervoltage lockout.
filter 기타 AC/DC 및 DC/DC 컨트롤러(외장 FET) 찾기
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기술 자료

star =TI에서 선정한 이 제품의 인기 문서
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10개 모두 보기
유형 직함 날짜
* Data sheet LM5117/Q1 Wide Input Range Synchronous Buck Controller with Analog Current Monitor datasheet (Rev. F) PDF | HTML 2015/08/27
White paper Valuing wide VIN, low EMI synchronous buck circuits for cost-driven, demanding a (Rev. A) 2019/04/10
White paper Overcoming Challenges in Designing Step-Dwn Reg Apps w/40V Input Voltage (Rev. A) 2018/07/03
Application note How to Design a Simple Constant Current/Constant Voltage Buck Converter 2018/06/26
Technical article How to design a simple constant-current/constant-power/constant-voltage-regulating PDF | HTML 2018/05/02
Analog Design Journal Reduce buck-converter EMI and voltage stress by minimizing inductive parasitics 2016/07/21
White paper Wide VIN power management ICs simplify white paper (Rev. A) 2013/09/19
User guide AN-2065 LM5119 Evaluation Board (Rev. B) 2013/04/24
User guide AN-2103 LM5117 Evaluation Board (Rev. B) 2013/04/24
Application note Precision Output Current Limiting Using Average Current Monitor Feature 2011/06/21

설계 및 개발

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

평가 보드

LM5117EVAL — LM5117 넓은 Vin 동기 벅 컨트롤러 평가 모듈

The LM5117 evaluation board provides the design engineer with a fully functional synchronous buck converter based on Emulated Current Mode Control to evaluate the LM5117 controller IC. The evaluation board provides 12V output with a 9A current capability in addition with average output current (...)

사용 설명서: PDF
TI.com에서 구매 불가
시뮬레이션 모델

LM5117 PSpice Transient Model (Rev. A)

SNVM040A.ZIP (82 KB) - PSpice Model
다운로드
시뮬레이션 모델

LM5117 TINA-TI Transient Reference Design (Rev. A)

SNVM619A.TSC (1077 KB) - TINA-TI Reference Design
다운로드
시뮬레이션 모델

LM5117 TINA-TI Transient Spice Model (Rev. A)

SNVM620A.ZIP (30 KB) - TINA-TI Spice Model
다운로드
시뮬레이션 모델

LM5117 Unencrypted PSpice Transient Model

SNVM960.ZIP (357 KB) - PSpice Model
다운로드
계산 툴

LM5117QUICK-CALC — LM5117 빠른 시작 계산기

다운로드
레퍼런스 디자인

PMP10852 — 12V@15A 출력에 고전력 소형 폼 팩터 동기 벅 레퍼런스 디자인

The PMP10852 reference design uses the LM5117, CSD18563 for the high side MOSFET and CSD18532 (x2) for the low side MOSFETs.  PMP10852 takes input voltages between 27V to 41V and outputs 180W(12V @15A).  The size is very small, total area is 1,200mm2 (30mm x 40mm) solution size. The (...)
Test report: PDF
회로도: PDF
레퍼런스 디자인

PMP20808 — 450W 고효율 25V 벅 컨버터 레퍼런스 설계

PMP20808 is a single-phase synchronous cuck converter reference design using the LM5117 controller IC. The design accepts an input voltage of 36Vin to 40Vin (38Vin Nominal) and provides an output of 25Vout capable of supplying 18A of continuous current to the load. The design was built on the (...)
Test report: PDF
회로도: PDF
레퍼런스 디자인

PMP20904 — 산업용 애플리케이션을 위한 100W 음극 출력 전원 공급 장치 레퍼런스 설계

The PMP20904 reference design is a negative buck utilizing the LM5117 controller for industrial applications. This design can operate at 24Vin at +/-10%. The design has an output of -24V and capable of sourcing 2A continuous current and up to 4A transient. Switching frequency is set to (...)
Test report: PDF
회로도: PDF
레퍼런스 디자인

PMP10852B — 12V@15A 출력에 고전력 소형 폼 팩터 동기 벅 레퍼런스 디자인

The PMP10852B reference design uses the LM5117, CSD18563 for the high side MOSFET and CSD18532 (x2) for the low side MOSFETs.  PMP10852B takes input voltages between 27V to 41V and outputs 180W(12V @15A).  The size is very small, total area is 1,200mm2 (30mm x 40mm) solution size. The (...)
Test report: PDF
회로도: PDF
패키지 핀 CAD 기호, 풋프린트 및 3D 모델
HTSSOP (PWP) 20 Ultra Librarian
WQFN (RTW) 24 Ultra Librarian
TI의 평가 항목에 대한 표준 약관이 적용됩니다.

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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포럼 주제 모두 보기(영문)

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