L99LD01TR-E

High Efficiency Constant Current Led Driver

Parameters

Operating Range	Automotive
Supply Voltage Min Volt	6.0
Supply Voltage Max Volt	28.0
ECCN US	EAR99
ECCN EU	NEC
Packing Type	Tape And Reel
RoHs compliant	Ecopack2
Grade	Automotive
Package Name	LQFP 32 7x7x1.4 mm

Description

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

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	$5.69	0%
10-24	$5.52	3%
25-99	$5.35	6%
100-249	$4.98	13%
250-499	$4.85	15%
500	$4.62	19%
500 +	Contact sales

$5.69

Parameters

Operating Range	Automotive
Supply Voltage Min Volt	6.0
Supply Voltage Max Volt	28.0
ECCN US	EAR99
ECCN EU	NEC
Packing Type	Tape And Reel
RoHs compliant	Ecopack2
Grade	Automotive
Package Name	LQFP 32 7x7x1.4 mm

Description

Key features

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