L99LD21Q6TR

High power LED driver for automotive applications

Parameters

Operating Range	Automotive
ECCN US	EAR99
ECCN EU	NEC
Packing Type	Tape And Reel
RoHs compliant	Ecopack2
Grade	Automotive
Package Name	VFQFPN 6X6

Description

The L99LD21 is a flexible LED driver, which is specifically designed for the control of two independent high brightness LED strings for automotive front lighting applications. It consists of a high efficiency monolithic boost controller and a dual buck converter.The boost controller integrates a...
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Key features

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

In stock

Quantity	$ per unit	Savings
1-9	$4.46	0%
10-99	$3.79	15%
100-249	$3.28	26%
250-499	$3.11	30%
500	$2.79	37%
500 +	Contact sales

$4.46

Parameters

Operating Range	Automotive
ECCN US	EAR99
ECCN EU	NEC
Packing Type	Tape And Reel
RoHs compliant	Ecopack2
Grade	Automotive
Package Name	VFQFPN 6X6

Description

Key features

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