Diodes Incorporated

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Flexible 0-10V Dimming Signal Interface Controller

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The AL8116 is a flexible dimming signal interface controller that can convert the three different inputs of dimmer type including 0 to 10V DC linear dimming, 0 to 100% duty cycle PWM (pulse width modulation) signal and a simple resistive potentiometer to an output PWM signal. It is easy to provide an isolation dimming control via an opto-coupler to the primary side LED driver.

The AL8116 has a wide input voltage range from 10V to 56V. The DIM pin of the AL8116 can output an adjustable accurate bias current that make it suit for both active and passive 0 to 10V dimmers, meanwhile potentiometers. The AL8116 output duty cycle accuracy is typically ±2.5% and the minimum output duty cycle can be set through the CLAMP pin resistor.

The AL8116 has an internal auto-recoverable over-temperatureprotection. The AL8116 is available in SOT26 (Type CJ) package to minimize PCB space as well as external component count.


  • Wide VCC Operating Range 10V to 56V
  • Low Operation Current (Typical 600μA)
  • Precision Dimmer Type with
  • Voltage Potential: 0/1V to 10V
  • PWM Dimming: 0.2k to 10kHz
  • Potentiometer: 0 to 100k
  • Adjustable Bias Current Source of DIM Pin
  • Accurate Output Duty Cycle Tolerance ±2.5%
  • Adjustable Minimum Output PWM Duty Clamping: 8%, 6%, 4%, and 2%
  • Built-In Over Temperature Protection for Chip
  • Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
  • Halogen and Antimony Free. “Green” Device (Note 3)
  • For automotive applications requiring specific change control (i.e. parts qualified to AEC-Q100/101/200, PPAP capable, and manufactured in IATF 16949 certified facilities), please contact us or your local Diodes representative. https://www.diodes.com/quality/product-definitions/


  • 0 to 10V Dimming Luminaires
  • Dimmable LED Power Supply
  • Dimming Control Devices
  • Commercial LED Lighting
  • Smart LED Lighting

Product Specifications

Product Parameters

Minimum Input AC Voltage (VAC) 12
Maximum Input AC Voltage (VAC) 305
Maximum DC VDD (VDC) 56
LED Current (mA) N/A
Frequency (kHz) 0.5-5
Accuracy (%) ±2.5 %
Efficiency (%) N/A %
Dimming PWM, 0-10V and Potentiometer
SupplyCurrent (mA) 0.6 mA
Temperature Range (°C) -40 to +105 °C

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