Diodes Incorporated

Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details.

W DFN2020 3 SWP Type A

Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details.

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The AL5810 is a constant current Linear LED driver offering an excellent temperature and voltage current stability with output adjustable handling capability. The AL5810 simplifies the design of LED drivers by setting the LED current with an external resistor using standard value resistors.

The AL5810 has an open drain output that can swing from 2.0V up to 60V supply voltage enabling it to drive long LED chains for high-side or low-side LED strings. Its low 0.5V RSET pin is outside of the LED current path and can maintain current accuracy while minimizing the required overheads to regulate the LED current. This reduces its power dissipation when compared to traditional linear LED drivers. It makes it ideal for driving LEDs up to 200mA.

The AL5810 is available in the Wettable Flank W-DFN2020-3 (2mm x 2mm) featuring power dissipation (PD) up to 2W and TO-252 (DPAK) package with PD up to 3.8W.


  • 0V to 60V Wide Input Voltage Range
  • An External Resistor for Setting Current
  • Low Reference Voltage (VRSET = 0.5V)
  • Adjustable Sink or Source LED Current Up to 200mA/200mA (W-DFN2020-3/TO-252)
  • ±3% LED Current Tolerance @Room Temp
  • Parallel Devices to Increase Regulated Current
  • Over Temperature Shutdown
  • -40°C to +105°C Ambient Temperature Range
  • Wettable W-DFN2020-3/SWP (Type A) (2mm x 2mm), PD up to 2W; TO-252 (DPAK), PD up to 3.85W
  • Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
  • Halogen and Antimony Free. “Green” Device (Note 3)
  • An automotive-compliant part is available under separate datasheet (AL5810Q)


  • Decorative Lighting
  • Display Signage
  • AC Lighting Panels
  • LED Strings for Dome and Mood Lighting
  • Instrumentation Illumination

Product Specifications

Product Parameters

AEC Qualified No
Compliance (Only Automotive supports PPAP) Standard
Topology Linear LED Driver
Minimum Supply Voltage (V) 2.5 V
Maximum Supply Voltage (V) 60 V
Maximum VOUT (V) 60 V
Number of Channels 1
Output Current (mA) 200 mA
Channel Max. Output Current (mA) 200 mA
Accuracy (%) 5 %
Dimming PWM by external transistor
Temperature Range (°C) -40 to 125 °C

Technical Documents

Recommended Soldering Techniques