LM2841FMK-ADJL
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LM2841FMK-ADJL

  • Category:LED driver
  • Product Name:3-channel constant current LED driver
  • Manufacturers:NS
  • Production Batch Number:10+
  • Encapsulation:TSSOP
  • Stock Status:There is stock
  • Stock Quantity:5820
  • Minimum order quantity: 1
  • Details:Click here to find pdf information on the LM2841FMK-ADJL
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  • Product introduction

 

peculiarity

 

  • LM3431Q/LM3431AQ Automotive AEC - Q100 Standard Class 1 qualified (-40°C to 125°C operating junction temperature) grade
  • 3-channel programmable LED current
  • High accuracy linear current regulation
  • Analog and digital PWM dimming control
  • Dimming frequency up to 25kHz
  • > 100:1 contrast ratio
  • Integrated boost controller
  • 5V - 36V input voltage range
  • Adjustable switching frequency up to 1MHz
  • LED short-circuit and open-circuit protection
  • Selectable fail-down or automatic restart
  • Programmable fault delay
  • Programmable cycle-by-cycle current limit
  • Output overvoltage protection
  • No noise
  • Enable pin
  • LED overtemperature shutdown input
  • Thermal shutdown
  • TSSOP-28 pad bare, encapsulated

 

illustrate

The LM3431 is ideal for LED backlit panels where a triple linear current controller combined with a boost switching controller drives critical application spaces. The LM3431 drives three external NPN transistors or MOSFETs to provide a high accuracy constant current of three LED strings. The output current is adjustable to drive strings over 200 mA. The scalable LM3431 drives up to 6 LED strings.

The boost controller drives an external NFET input voltage boost regulator switch between 5V and 36V. The LM3431 features LED cathodic feedback to minimize adjustment margin and optimize efficiency.

The DIM input pin controls the brightness of the LED from an analog or digital control signal. Dimming frequencies up to 25 kHz are possible with a contrast ratio of 100:1. It is possible to contrast at lower dimming frequencies than 1000:1.

The LM3431 eliminates audible noise problems and maintains constant output voltage regulation in LED dimming. Other features include LED short-circuit and open-circuit protection, fault delay/error flags, cyclic cycle current limiting, thermal shutdown ICs, and LED arrays. The LM3431A's enhancements reduce the offset of higher voltge accuracy LED currents.

 


apply

  • Car infotainment display
  • Small to medium format display

andLM2841FMK-ADJLRelated ICs are:


Model Manufacturers lot number encapsulation illustrate
LM2841FMK-ADJL NS 10+ TSSOP 3-channel constant current LED driver
LM2841FMKX-ADJL NSC 10+ SOT23-6 Up to 42V input step-down DC/DC regulator at 300 mA

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