Features
• AEC-Q100 (Grade 1)
• Wide Input Voltage Range from 4.7V to 85V
• Pre-Fixed 400kHz Switching Frequency (Factory Set)
• Spread Spectrum Frequency Modulation for Low EMI
• Analog Dimming Range: 1% to 100%
▪ 100% Dimming Level ±3% Current Accuracy
▪ 20% Dimming Level ±12% Current Accuracy
• PWM Dimming Ratio 100:1 at 200Hz PWM Frequency
• Programmable Soft Start
• Fault Status Indicator for Protections
• Output Overvoltage and LED Open Circuit Protection
• Output Undervoltage and LED Short Circuit Protection
• Cycle-by-Cycle Overcurrent Limitation Protection
• Sense Resistor Shorted Circuit Protection
• Diode/Inductor Shorted Circuit Protection
• Diode Open Circuit Protection
• Thermal Shutdown
• Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
• Halogen and Antimony Free. “Green” Device (Note 3)
• The AL8866Q is suitable for automotive applications
requiring specific change control; this part is AEC-Q100
qualified, PPAP capable, and manufactured in IATF 16949
certified facilities.
https://www.diodes.com/quality/product-definitions/

Applications
• Automotive front lightings
• Automotive high beams, low beams
• Automotive daytime running lights
• Automotive fog lights, turn lights and position lights
• Other automotive LED lightings