L99LD01TR-E

L99LD01TR-E

L99LD01 NRND

High Efficiency Constant Current Led Driver
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1 - 500$0.000%
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Parameter NameParameter Value
Operating RangeAutomotive
Supply Voltage Min Volt6.0
Supply Voltage Max Volt28.0
ECCN USEAR99
ECCN EUNEC
Packing TypeTray
ROHS Compliance GradeEcopack2
GradeAutomotive
Key features
  • Constant current operation
  • Current LED settable by external sensing resistor and adjustable via SPI
  • Converter switching frequency adjustable by external resistor (RSF)
  • EMC reduction by internal spread spectrum dither oscillator
  • Low frequency PWM dimming operation
  • Maximum input current limiter
  • Maximum switching duty cycle limiter
  • Slope compensation adjustable by external resistor (R9)
  • Battery over voltage shut down protection (ext. R3,R4 resistors required)
  • Led chain OV detection (ext. R5, R6)
  • Multiplexed output for monitoring and control of LED temperature (external NTC resistor required), voltage of LED chain, and low frequency PWM
  • SPI communication serial interface transceiver (SDI, SDO, SCK, CSN)
  • Parameter programming and settings of internal memory registers by the dedicated SPI interface:
    • LED current reference adjusting (± 66.7 %)
    • Maximum input current limiter reference adjusting (± 55.5 %)
    • Random dither frequency sweeping, modulation frequency and deviation percentage
  • Regulated output for micro supply 5 V ± 2 % - 20 mA
  • Power on reset pin output
  • ESD protection