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Diodes Incorporated AL8860EV2 | Demoboard AL8860EV2

AL8860EV2 EVALUATION BOARD USER GUIDE

Overview

TopologyBuck Converter
Input voltage4.5-40 V
Switching frequency1000 kHz
IC revision1

Description

The AL8860EV2, Figure 1, is a double sided evaluation board for the AL8860 step-down, or ‘buck’, LED driver with internal switch. The evaluation board is preset to drive 1.5A 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 AL8860 is 1.5A)

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
  • Over Temperature Protection (OTP)
  • Up to 1MHz Switching Frequency
  • Pb-free TSOT25 and MSOP-8EP Packages

Typical applications

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

Products

Order Code Data­sheet Downloads Product seriesL
(µH)
IR
(A)
ISAT
(A)
RDC typ.
(mΩ)
RDC max.
(mΩ)
fres
(MHz)
SizeVersion Samples
744771122
IGS STP ALT EAG CAD LTS PSP SPE CADWE-PD SMT Power Inductor 22 3.37 3.77 31 36 13.5 1260 Standard
744771133
IGS STP ALT EAG CAD LTS PSP SPE CADWE-PD SMT Power Inductor 33 2.68 3 49 57 11 1260 Standard
744771147
IGS STP ALT EAG CAD LTS PSP SPE CADWE-PD SMT Power Inductor 47 2.21 2.6 72 75 9.2 1260 Standard
744771168
IGS STP ALT EAG CAD LTS PSP SPE CADWE-PD SMT Power Inductor 68 1.91 2.19 96 120 7.6 1260 Standard
74477120
IGS STP ALT EAG CAD LTS PSP SPE CADWE-PD SMT Power Inductor 100 1.53 1.7 150 160 6.6 1260 Standard
744771215
IGS STP ALT EAG CAD LTS PSP SPE CADWE-PD SMT Power Inductor 150 1.21 1.43 185 230 4.4 1260 Standard
744771220
IGS STP ALT EAG CAD LTS PSP SPE CADWE-PD SMT Power Inductor 220 0.96 1.2 290 400 3.8 1260 Standard
Samples
Order Code Data­sheet Downloads Product seriesL
(µH)
IR
(A)
ISAT
(A)
RDC typ.
(mΩ)
RDC max.
(mΩ)
fres
(MHz)
SizeVersion Samples