전력 관리 LED 드라이버 조명 LED 드라이버

LM3407

활성

고전력 LED용 350mA 정전류 출력 부동 벅 스위칭 컨버터

이 제품의 최신 버전이 있습니다

open-in-new 대안 비교
다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능.
TPS92200 활성 조광 옵션을 지원하는 4V~30V 입력 전압, 1.5A 출력 전류, 동기 벅 LED 드라이버 Newer device with higher output current and smaller size.
TPS922050 활성 아날로그 또는 PWM 디밍 옵션이 있는 65V 1A 벅 LED 드라이버 Newer device with higher input voltage, higher output current and smaller package option.

제품 상세 정보

Input voltage type DC/DC Topology Buck Vin (min) (V) 4.5 Vin (max) (V) 30 Vout (max) (V) 27 Vout (min) (V) 0.45 Iout (max) (A) 0.35 Iq (typ) (mA) 0.78 Features Adjustable Switch Frequency, Enable/Shutdown, Integrated Switch, Thermal shutdown Operating temperature range (°C) -40 to 125 Dimming method PWM Number of channels 1 Rating Catalog
Input voltage type DC/DC Topology Buck Vin (min) (V) 4.5 Vin (max) (V) 30 Vout (max) (V) 27 Vout (min) (V) 0.45 Iout (max) (A) 0.35 Iq (typ) (mA) 0.78 Features Adjustable Switch Frequency, Enable/Shutdown, Integrated Switch, Thermal shutdown Operating temperature range (°C) -40 to 125 Dimming method PWM Number of channels 1 Rating Catalog
HVSSOP (DGN) 8 14.7 mm² (3 mm × 4.9 mm)
  • Input Operating Range 4.5 V to 30 V
  • Output Voltage Range: 0.1 VIN to 0.9 VIN
  • Accurate Constant Current Output
  • Independent Device Enable (CMOS Compatible) and PWM Dimming Control
  • Converter Switching Frequency Adjustable From 300 kHz to 1 MHz
  • No External Control Loop Compensation Required
  • Supports Ceramic and Low ESR Output Capacitors
  • Input Undervoltage Lockout (UVLO)
  • Thermal Shutdown Protection
  • MSOP-8 PowerPAD Package
  • Input Operating Range 4.5 V to 30 V
  • Output Voltage Range: 0.1 VIN to 0.9 VIN
  • Accurate Constant Current Output
  • Independent Device Enable (CMOS Compatible) and PWM Dimming Control
  • Converter Switching Frequency Adjustable From 300 kHz to 1 MHz
  • No External Control Loop Compensation Required
  • Supports Ceramic and Low ESR Output Capacitors
  • Input Undervoltage Lockout (UVLO)
  • Thermal Shutdown Protection
  • MSOP-8 PowerPAD Package

The LM3407 device is a constant current output floating buck switching converter designed to provide constant current to high-power LEDs. The device is ideal for automotive, industrial, and general lighting applications. The LM3407 has an integrated power N-channel MOSFET that makes the application solution compact and simple to implement. An external 1% thick-film resistor allows the converter output voltage to adjust as needed to deliver constant current within 10% accuracy to a serially connected LED string of varying number and type. Converter switching frequency is adjustable from 300 kHz to 1 MHz. The LM3407 features a dimming input to enable LED brightness control by Pulse Width Modulation (PWM). Additionally, a separate enable pin allows for low-power shutdown. An exposed pad MSOP-8 package provides excellent heat dissipation and thermal performance. Input UVLO and output open-circuit protection ensure a robust LED driver solution.

The LM3407 device is a constant current output floating buck switching converter designed to provide constant current to high-power LEDs. The device is ideal for automotive, industrial, and general lighting applications. The LM3407 has an integrated power N-channel MOSFET that makes the application solution compact and simple to implement. An external 1% thick-film resistor allows the converter output voltage to adjust as needed to deliver constant current within 10% accuracy to a serially connected LED string of varying number and type. Converter switching frequency is adjustable from 300 kHz to 1 MHz. The LM3407 features a dimming input to enable LED brightness control by Pulse Width Modulation (PWM). Additionally, a separate enable pin allows for low-power shutdown. An exposed pad MSOP-8 package provides excellent heat dissipation and thermal performance. Input UVLO and output open-circuit protection ensure a robust LED driver solution.

다운로드 스크립트와 함께 비디오 보기 비디오

관심 가지실만한 유사 제품

open-in-new 대안 비교
다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능.
TPS92511 활성 500mA 30W 양극 기능 정전류 벅 LED DVR This product is a 500-mA integrated NFET buck LED driver with integrated current sense, and the minimum numbers to build a complete LED driver is 5.

기술 자료

검색된 결과가 없습니다. 검색어를 지우고 다시 시도하세요.
4개 모두 보기
상위 문서 유형 직함 형식 옵션 최신 영어 버전 다운로드 날짜
* 데이터 시트 LM3407 350-mA, Constant Current Output Floating Buck Switching Converter for High-Power LEDs datasheet (Rev. C) PDF | HTML 2016. 11. 15
백서 Common LED Functions and LED Driver Design Considerations 2020. 9. 21
애플리케이션 노트 AN-1656 Design Challenges of Switching LED Drivers (Rev. A) 2013. 5. 3
애플리케이션 노트 AN-1982 Small, Wide Input Voltage Range LM2842 Keeps LEDs Cool (Rev. A) 2013. 4. 23

설계 및 개발

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평가 보드

LM3407EVAL — 350mA, 정전류 부동 벅 스위칭 레귤레이터 평가 보드

The LM3407 evaluation board contains a Pulse-Width-Modulation (PWM) floating buck converter with an integrated N-Channel power MOSFET and is designed to provide a constant current output for driving high power LEDs, such as the Lumileds Luxeon® power LEDs and OSRAM Golden DRAGON® LED.

사용 설명서: PDF
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계산 툴

LM3407DESIGN-CALC — LM3407 부품 계산기

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