L99LD21Q6TR

Active
High power LED driver for automotive applications
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%
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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
Associated Products