User guide

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102
Errors
The AL3001 shows error conditions on the LCD screen and the
GOOD Led.
The following conditions are displayed:
"GOOD DMX" LED off
"DMX ERRORS" LED on
"NO DMX" LED off
"HI TEMP" LED on FAN on Outputs disabled
"TEMP > 70" LED on FAN on
Power
Supply
The AL2001/AL3001 requires a 5V power supply at a current of
approximately
40mA. Good power supply decoupling is essential, and normal pcb
layout
conventions should be followed (i.e. ground plane any and all empty
areas of pcb).
All GND and VCC inputs must be connected.
Output
timing
The following examples show the relationship between Output, Zero
cross for three input values.
Application
The following circuit shows the AL4002 application drawing.
90% Output
50% Output
10% Output
Zero Cross