Electronic Design
  • Resources
  • Directory
  • Webinars
  • CAD Models
  • Video
  • Blogs
  • More Publications
  • Advertise
    • Search
  • Top Stories
  • Tech Topics
  • Analog
  • Power
  • Embedded
  • Test
  • AI / ML
  • Automotive
  • Data Sheets
  • Topics
    - TechXchange Topics --- Markets --AutomotiveAutomation-- Technologies --AnalogPowerTest & MeasurementEmbedded
    Resources
    Electronic Design ResourcesTop Stories of the WeekNew ProductsKit Close-UpElectronic Design LibrarySearch Data SheetsCompany DirectoryBlogsContribute
    Members
    ContentBenefitsSubscribeDigital editions
    Advertise
    https://www.facebook.com/ElectronicDesign
    https://www.linkedin.com/groups/4210549/
    https://twitter.com/ElectronicDesgn
    https://www.youtube.com/channel/UCXKEiQ9dob20rIqTA7ONfJg
    Electronicdesign 6639 1121npdtltc
    1. Technologies
    2. Power

    Triple-Output LED Driver Controller Delivers Over 250 W

    Nov. 22, 2013
    Each channel of Linear Technology’s LT3797 triple-output dc-dc controller drives a wide range of LED power in either step-up, step-down, or SEPIC topologies.
    Staff

    Each channel of Linear Technology’s LT3797 triple-output dc-dc controller drives a wide range of LED power in either step-up, step-down, or SEPIC topologies. Its fixed-frequency, current-mode architecture supplies constant, accurately regulated LED current. Thanks to a 2.5- to 40-V input voltage range with transient ride through to 60 V, the device will find homes in automotive applications, which must operate through cold-crank, stop/start, and load-dump scenarios, as well as in industrial applications. In boost configuration, the controller powers three channels of up to 90 V of LEDs with currents in excess of 1 A, thus providing over 250 W of power from a nominal 12-V input with efficiencies up to 93%. An independent True Color PWM signal operates each of the three channels, enabling dimming ratios up to 3000:1. All channels integrate open-LED and short-circuit protection in boost mode. With a frequency-adjust pin, users can program the frequency between 100 kHz and 1 MHz to optimize efficiency and minimize external component size. The devices come in thermally enhanced 7- by 8-mm QFN packages.

    LINEAR TECHNOLOGY CORP.

    Continue Reading

    Backlight LED Drivers Enable Independent Control of 192 Zones

    This Week in PowerBites: Smart IGBTs, Doubling Down on Grid-Scale Storage

    Sponsored Recommendations

    Designing automotive-grade camera-based mirror systems

    Dec. 2, 2023

    Design security cameras and other low-power smart cameras with AI vision processors

    Dec. 2, 2023

    Automotive 1 TOPS vision SoC with RGB-IR ISP for 1-2 cameras, driver monitoring, dashcams

    Dec. 2, 2023

    AM62A starter kit for edge AI, vision, analytics and general purpose processors

    Dec. 2, 2023

    Comments

    To join the conversation, and become an exclusive member of Electronic Design, create an account today!

    I already have an account

    New

    Commercial-Ready Route in Texas for Driverless Trucks Planned for Late 2024

    Running Background Checks on Today’s Celebrity Scientists

    In-Circuit Test System Enables Higher Throughput

    Most Read

    Measuring with Humor

    Quick Poll: A Memory Quiz

    Design Optimization for Engineering Problems — from Nanophotonics to Civil Infrastructure


    Sponsored

    Electronic Design
    https://www.facebook.com/ElectronicDesign
    https://www.linkedin.com/groups/4210549/
    https://twitter.com/ElectronicDesgn
    https://www.youtube.com/channel/UCXKEiQ9dob20rIqTA7ONfJg
    • About Us
    • Contact Us
    • Advertise
    • Do Not Sell or Share
    • Privacy & Cookie Policy
    • Terms of Service
    © 2023 Endeavor Business Media, LLC. All rights reserved.
    Endeavor Business Media Logo