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Description

The AL8400 is a 5-terminal adjustable Linear LED driver-controller offering excellent temperature stability and output handling capability. The AL8400 simplifies the design of linear and isolated LED drivers. With its low 200mV current sense FB pin, it controls the regulation of LED current with minimal power dissipation when compared to traditional linear LED drivers. This makes it ideal for medium to high current LED driving. 

The AL8400 open-collector output can operate from 0.2V to 18V enabling it to drive external MOSFET and Bipolar transistors. This enables the MOSFET and Bipolar selection to be optimized for the chosen application. It also provides the capability to drive longer LED chains, by tapping VCC from the chain, where the chain voltage may exceed 18V. 

It is available in the space saving low profile SOT353 package. 

The AL8400Q is Automotive Grade and is AEC-Q100 Grade 1 qualified. 

Application(s)

  • Isolated Offline LED Lamps 
  • Linear LED Driver 
  • LED Signs 
  • Instrumentation Illumination 
 

Feature(s)

  • Low Reference Voltage (VFB = 0.2V) 
  • -40 to +125°C Temperature Range 
  • 3% Reference Voltage Tolerance at +25°C 
  • Low Temperature Drift 
  • 0.2V to 18V Open-Collector Output 
  • High Power Supply Rejection:
    • (> 45dB at 300kHz) 
  • AL8400QSE-7 Automotive Grade qualified to AEC-Q100 Grade 1
  • SOT353: Available in “Green” Molding Compound (No Br, Sb) 
  • Lead-Free Finish; RoHS Compliant  
  • Halogen and Antimony Free. “Green” Device 

Product Specifications

Product Parameters

Qualified to AECQ10x No
Compliance (Only Automotive supports PPAP) Standard
Topology Linear Controller
Minimum Supply Voltage 2.2 V
Maximum Supply Voltage 18 V
Maximum VOUT 18 V
Number of Channels 1
LED Current Sense Voltage 200 mV
Output Current 15 mA
Channel Max. Output Current (mA) Ext Transistor
Accuracy 3 %
Dimming Ext
Temperature Range -40 to 125 °C

Related Content

Packages
SOT353

Technical Documents

Evaluation Board User Guides

Recommended Soldering Techniques

TN1.pdf

Orderable Part Number Buy from Distributor / Contact Sales Request Samples
AL8400QEV1

AL8400QEV1

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Digi-Key Electronics 3 4/18/2021 Europe, Asia, North America Buy Now
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AL8400QSE-7

AL8400QSE-7

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Arrow Electronics 3000 4/18/2021 United States Buy Now
Arrow Electronics Central EU 561000 4/18/2021 Europe Buy Now
Digi-Key Electronics 301 4/18/2021 Europe, Asia, North America Buy Now
Mouser Electronics Inc. 2530 4/18/2021 South America, North America, Asia, Europe, Middle East Buy Now
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AL8400SE-7

AL8400SE-7

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Avnet 9000 4/18/2021 United States Buy Now
Digi-Key Electronics 1867 4/18/2021 Europe, Asia, North America Buy Now
Mouser Electronics Inc. 4568 4/18/2021 South America, North America, Asia, Europe, Middle East Buy Now
RS Components Ltd. 2950 4/18/2021 Japan Buy Now
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