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    L99LD21Q6TR

    Active
    High power LED driver for automotive applications
    Learn More about L99LD21Q6TR
    Quantity $ per Unit Savings
    1 - 9$3.710%
    10 - 24$3.3410%
    25 - 99$3.1615%
    100 - 249$2.6030%
    250 - 499$2.3337%
    500$2.2639%
    500 + Contact Sales
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    In stock:
    $3.71
    Parameter NameParameter Value
    Operating RangeAutomotive
    ECCN USEAR99
    ECCN EUNEC
    Packing TypeTape And Reel
    ROHS Compliance GradeEcopack2
    GradeAutomotive
    Package NameVFQFPN 6X6
    Key features
    • AEC-Q100 qualified
    • General
      • ST SPI communication v4.1
      • 5.5 to 24V Operating battery voltage range
      • Load dump protected
      • QFN40L (wettable flanks) with exposed pad
      • Timeout watchdog and limp home function
      • Low standby current
    • Boost Section
      • Fixed frequency architecture, programmable by SPI
      • Peak current mode control
      • Dual phase operation supported
      • Input current limitation
      • Soft start
      • Overvoltage protection (OVP)
      • Short feedback failure protection
      • Constant voltage control
    • Buck section
      • Integrated switching mosfets
      • Lossless current sensing without need of external components
      • Very accurate LED current setting programming inductor's peak current and peak-to-peak current ripple
      • Adjustable peak current by SPI
      • Adjustable current ripple by SPI
      • Integrated PWM generation unit with 10-bit resolution and phase shift
      • Peak current control
      • Constant VLED x TOFF architecture
    • Protection and diagnostic
      • Battery under voltage
      • Temperature warning (2 thresholds)
      • Overtemperature shutdown
      • LED voltage digital feedback through SPI
      • Buck outputs short circuit and open load protection
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