AL8866Q Overview
Description
The AL8866Q is a Buck-Boost, Boost, Buck and SEPIC (single-ended primary-inductance converter) DC-Switching controller designed to drive an external MOSFET for high power automotive LED applications such as automotive front lighting. The AL8866Q operates within a wide input power supply range from 4.7V to 85V.
Key Features
- AEC-Q100 (Grade
- 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
