AMLDL-3060-RZ Datasheet, PDF (4/17 Pages) AIMTEC – LED Driver

Output Current Adjustment by External DC Control Voltage:
The nominal output current is given by:
Vadj
Ioutnom = Iout
1.25
Series AMLDL-RZ
Up to 700mA | LED Driver
Vctrl +5v
R1 30K
VADJ
R2
10K
AMLDL-RZ
-Vin
VADJ =
R2
R1 + R2
X Vctrl
+Vout
1^st LED
1
-Vout
1
VADJ
0.3 -1.25V
AMLDL-RZ
-Vin
GND
+Vout
1^st LED
1
-Vout
Last LED
1
+Vin
10K
10K
1 _TL431
VADJ
10K
AMLDL-RZ
-Vin
+Vout
1^st LED
1
-Vout
1
Resistive Dimming Control
A simplified dimming control can be achieved using a variable resistor connected between VADJ and GND. Capacitor CADJ
is optional, it is installed to limit AC mains interference and high frequency noise. The recommended value of CADJ is
0.22µF.
The nominal output current is given by:
Ioutnom= Iout x Radj
Radj + 200K
NOTE: Typical error is ±10% with resistive dimming control
CADJ
RADJ
VADJ
AMLDL-RZ
-Vin
+Vout
1^st LED
1
-Vout
1
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