전원 관리 AC/DC 및 DC/DC 컨트롤러(외장 FET)

LM5088

활성

4.5~75V 넓은 입력 전압 범위, 전류 모드 비동기형 벅 컨트롤러

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.

제품 상세 정보

Vin (min) (V) 4.5 Vin (max) (V) 75 Iout (max) (A) 10 Operating temperature range (°C) -40 to 125 Control mode current mode Rating Catalog Vout (min) (V) 1.205 Vout (max) (V) 70 Features Adjustable current limit, Enable, Frequency synchronization, Spread Spectrum Iq (typ) (µA) 3800 Duty cycle (max) (%) 100 Number of phases 1
Vin (min) (V) 4.5 Vin (max) (V) 75 Iout (max) (A) 10 Operating temperature range (°C) -40 to 125 Control mode current mode Rating Catalog Vout (min) (V) 1.205 Vout (max) (V) 70 Features Adjustable current limit, Enable, Frequency synchronization, Spread Spectrum Iq (typ) (µA) 3800 Duty cycle (max) (%) 100 Number of phases 1
HTSSOP (PWP) 16 32 mm² 5 x 6.4
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature range
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C5
  • Emulated current mode control
  • Drives external high-side N-channel MOSFET
  • Ultra-wide input voltage range from 4.5 V to 75 V
  • Low IQ shutdown and standby modes
  • High duty cycle ratio feature for reduced dropout voltage
  • Spread spectrum EMI reduction (LM5088-1)
  • Hiccup timer for overload protection (LM5088-2)
  • Adjustable output voltage from 1.205 V with 1.5% feedback reference accuracy
  • Wide bandwidth error amplifier
  • Single resistor oscillator frequency setting
  • Oscillator synchronization capability
  • Programmable soft start
  • High voltage, low dropout bias regulator
  • Thermal shutdown protection
  • 16-pin HTSSOP package
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature range
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C5
  • Emulated current mode control
  • Drives external high-side N-channel MOSFET
  • Ultra-wide input voltage range from 4.5 V to 75 V
  • Low IQ shutdown and standby modes
  • High duty cycle ratio feature for reduced dropout voltage
  • Spread spectrum EMI reduction (LM5088-1)
  • Hiccup timer for overload protection (LM5088-2)
  • Adjustable output voltage from 1.205 V with 1.5% feedback reference accuracy
  • Wide bandwidth error amplifier
  • Single resistor oscillator frequency setting
  • Oscillator synchronization capability
  • Programmable soft start
  • High voltage, low dropout bias regulator
  • Thermal shutdown protection
  • 16-pin HTSSOP package

The LM5088 high voltage non-synchronous buck controller features all the necessary functions to implement an efficient, high-voltage buck converter using a minimum number of external components. The LM5088 can be configured to operate over an ultra-wide input voltage range of 4.5 V to 75 V. This easy-to-use controller includes a level-shifted gate driver capable of controlling an external N-channel buck switch. The control method is based upon peak current mode control utilizing an emulated current ramp. 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 and low output voltage applications. The LM5088 switching frequency is programmable from 50 kHz to 1 MHz.

The LM5088 is available in two versions: The LM5088-1 provides a ±5% frequency dithering function to reduce the conducted and radiated EMI, while the LM5088-2 provides a versatile restart timer for overload protection. Additional features include a low dropout bias regulator, tri-level enable input to control shutdown and standby modes, soft start, and oscillator synchronization capability. The device is available in a thermally enhanced 16-pin HTSSOP package.

The LM5088 high voltage non-synchronous buck controller features all the necessary functions to implement an efficient, high-voltage buck converter using a minimum number of external components. The LM5088 can be configured to operate over an ultra-wide input voltage range of 4.5 V to 75 V. This easy-to-use controller includes a level-shifted gate driver capable of controlling an external N-channel buck switch. The control method is based upon peak current mode control utilizing an emulated current ramp. 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 and low output voltage applications. The LM5088 switching frequency is programmable from 50 kHz to 1 MHz.

The LM5088 is available in two versions: The LM5088-1 provides a ±5% frequency dithering function to reduce the conducted and radiated EMI, while the LM5088-2 provides a versatile restart timer for overload protection. Additional features include a low dropout bias regulator, tri-level enable input to control shutdown and standby modes, soft start, and oscillator synchronization capability. The device is available in a thermally enhanced 16-pin HTSSOP package.

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기술 자료

star =TI에서 선정한 이 제품의 인기 문서
검색된 결과가 없습니다. 검색어를 지우고 다시 시도하십시오.
8개 모두 보기
유형 직함 날짜
* Data sheet LM5088, LM5088-Q1 Wide Input Range Non-Synchronous Buck Controller datasheet (Rev. J) PDF | HTML 2022/06/08
White paper Valuing wide VIN, low EMI synchronous buck circuits for cost-driven, demanding a (Rev. A) 2019/04/10
Analog Design Journal Reduce buck-converter EMI and voltage stress by minimizing inductive parasitics 2016/07/21
Technical article Power Tips: Automotive EMI Series: Dithering? Not always a bad thing PDF | HTML 2016/02/10
Application note Load Dump and Cranking Protection for Automotive Backlight LED Power Supply (Rev. A) 2015/03/16
Application note Automated Frequency Response Analyzer 2013/10/09
EVM User's guide AN-1913 LM5088 Evaluation Board (Rev. E) 2013/04/30
Application note Improve Power Converter Reliability Using Hiccup-Mode Current Limiting 2009/05/11

설계 및 개발

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

평가 보드

LM5088MH-1EVAL — LM5088-1 - 디더링을 지원하는 넓은 입력 범위 비동기 벅 컨트롤러 평가 모듈

The LM5088-1 evaluation board is designed to provide the design engineer with a fully functional power converter based on Emulated Current Mode Control to evaluate the LM5088 controller IC. The LM5088 evaluation board is available in two versions (like the LM5088 controller): the LM5088-1 (...)

사용 설명서: PDF
TI.com에서 구매 불가
평가 보드

LM5088MH-2EVAL — LM5088-2 - 히컵 모드 재시작을 지원하는 넓은 입력 범위 비동기 벅 컨트롤러

The LM5088-2 evaluation board is designed to provide the design engineer with a fully functional power converter based on Emulated Current Mode Control to evaluate the LM5088 controller IC. The LM5088 evaluation board is available in two versions (like the LM5088 controller): the LM5088-1 (...)

사용 설명서: PDF
TI.com에서 구매 불가
시뮬레이션 모델

LM5088 PSpice Average Model

SNVM355.ZIP (46 KB) - PSpice Model
시뮬레이션 모델

LM5088 PSpice Transient Model

SNVM356.ZIP (200 KB) - PSpice Model
시뮬레이션 모델

LM5088 TINA-TI Transient Reference Design

SNVM022.TSC (136 KB) - TINA-TI Reference Design
시뮬레이션 모델

LM5088 TINA-TI Transient Spice Model

SNVM021.ZIP (16 KB) - TINA-TI Spice Model
시뮬레이션 모델

LM5088 Unencrypted PSpice Average Model

SNVM957.ZIP (1 KB) - PSpice Model
시뮬레이션 모델

LM5088 Unencrypted PSpice Transient Model

SNVM956.ZIP (2 KB) - PSpice Model
계산 툴

LM25088-5088QUICK-CALC — LM(2)5088 빠른 시작 계산기

패키지 CAD 기호, 풋프린트 및 3D 모델
HTSSOP (PWP) 16 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

지원 및 교육

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