AL8866 Datasheet BUCK AND SEPIC LED CONTROLLER

Manufacturer: Diodes Incorporated

AL8866 buck and sepic led controller by Diodes Incorporated - Datasheet Preview

Datasheet Details

Part number	AL8866
Manufacturer	Diodes Incorporated
File Size	836.69 KB
Description	BUCK AND SEPIC LED CONTROLLER
Download	AL8866 Download (PDF)

General Description

The AL8866 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 LED applications.

The AL8866 operates within a wide input power supply range from 4.7V to 85V.

Based on a fixed-frequency, peak current-mode control architecture, the device incorporates spread spectrum frequency modulation and achieves low EMI performance.

Overview

AL8866 BUCK-BOOST, BOOST, BUCK AND SEPIC LED CONTROLLER.

Key Features

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 Pro.

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