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NRND

L99LD01TR-E

High Efficiency Constant Current Led Driver

Operating RangeAutomotive
Supply Voltage Min Volt6.0
Supply Voltage Max Volt28.0
ECCN USEAR99
ECCN EUNEC
Packing TypeTape And Reel
RoHs compliantEcopack2
GradeAutomotive
Package NameLQFP 32 7x7x1.4 mm

L99LD01 is a precise constant current DC–DC converter LED driver for automotive applications, dedicated to the control of high-brightness LED headlights an housed in a LQFP32™ package.The device is designed to be used in Boost, Buck-Boost and Fly back converter topologies. An internal random...
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Key features
  • Automotive qualified
  • 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 overvoltage 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)
  • Regulated output for micro supply 5 V ± 2 %-20 mA
  • 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
  • Power on reset pin output
  • ESD protection
In stock
Quantity $ per unit Savings
1-9$5.690%
10-24$5.523%
25-99$5.356%
100-249$4.9813%
250-499$4.8515%
500$4.6219%
Contact sales
$5.69
$5.69
Operating RangeAutomotive
Supply Voltage Min Volt6.0
Supply Voltage Max Volt28.0
ECCN USEAR99
ECCN EUNEC
Packing TypeTape And Reel
RoHs compliantEcopack2
GradeAutomotive
Package NameLQFP 32 7x7x1.4 mm

L99LD01 is a precise constant current DC–DC converter LED driver for automotive applications, dedicated to the control of high-brightness LED headlights an housed in a LQFP32™ package.The device is designed to be used in Boost, Buck-Boost and Fly back converter topologies. An internal random...
Read More

Key features
  • Automotive qualified
  • 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 overvoltage 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)
  • Regulated output for micro supply 5 V ± 2 %-20 mA
  • 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
  • Power on reset pin output
  • ESD protection