AL8807AEV3 Ver la hoja de datos (PDF) - Diodes Incorporated.
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AL8807AEV3 Datasheet PDF : 8 Pages
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AL8807AEV3 EVALUATION BOARD USER GUIDE
DESCRIPTION
The AL8807AEV3, Figure 1, is a double sided evaluation board for the AL8807A step-down, or ‘buck’,
LED driver with internal switch. The evaluation board is preset to drive 1A into a single LED, or
multiple LEDs, the maximum number of which depends on their total forward voltage drop and the
supply voltage.
The operating voltage is between 6 and 36 volts, but it must be greater than the voltage drop across
the LED chain. The 68uH inductor used in the circuit is based on this nominal supply. The evaluation
board should be connected as in Figure 1 below.
Note: The evaluation board does not have reverse supply protection.
The nominal output current, 1A, is set with the 0R1 sense resistor, R1.
Terminal CTRL provides a connection point for DC dimming.
Warning: At 36V nominal operation with 1A output, the LED will be hot and very bright
+
V
6-36VDC
1-8
LEDs
Figure 1: AL8807AEV3 evaluation board and connection diagram
Issue 2 – October 2012
© Diodes Incorporated, 2012
www.diodes.com
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