Diodes Incorporated AL8861 | Demoboard AL8861EV1

Description

The AL8861EV1, Figure 1, is a double sided evaluation board for the AL8861 step-down, or ‘buck’, LED driver with internal switch. The evaluation board is preset to drive 680mA into a single LED, or multiple LEDs, the maximum number of which depends on their total forward voltage drop and the supply voltage. (The maximum drive current of the AL8861 is 1000mA)

Features

• Low BOM Counts
• Wide Input Voltage Range: 4.5V to 40V
• Output Current up to 1.5A
• Internal 40V NDMOS Switch
• Typical 5% Output Current Accuracy
• Single Pin for On/Off and Brightness Control by DC Voltage or PWM Signal
• Recommended Analog Dimming Range: 5% ~100%
• Soft-Start
• High Efficiency (up to 97%)
• LED Short Protection
• Inherent Open-Circuit LED Protection
• Rs Short Protection
• Over Temperature Protection (OTP)
• Up to 1MHz Switching Frequency
• Pb-free TSOT25 and SOT89-5 Packages

Typical applications

• LED Retrofit for Low Voltage Halogen / Low Voltage Industrial Lighting / LED Backlighting / Illuminated Signs
• External Driver with Multiple Channels

More information

• Datasheet
• IC product information