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AMLDL-3070Z Datasheet(PDF) 6 Page - AIMTEC |
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AMLDL-3070Z Datasheet(HTML) 6 Page - AIMTEC |
6 / 14 page Series AMLDL-Z Up to 1000mA | LED Driver www.aimtec.com Tel: +1 514 620 2722 Toll free: + 1 888 9 AIMTEC (924 6832) F 051e R9.E 6 of 15 North America only 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. Model Number X AMLDL-3030Z 0.327 AMLDL-3035Z 0.280 AMLDL-3050Z 0.197 AMLDL-3060Z 0.165 AMLDL-3070Z 0.1388 AMLDL-30100Z 0.095 Output Current Adjustment by PWM Control: Driving VADJ Directly A Pulse Width Modulated (PWM) signal with a duty cycle of DPWM can be applied directly to VADJ pin as shown below. Model Number X AMLDL-3030Z 0.327 AMLDL-3035Z 0.280 AMLDL-3050Z 0.197 AMLDL-3060Z 0.165 AMLDL-3070Z 0.1388 AMLDL-30100Z 0.095 Driving VADJ Via Open Collector Transistor The VADJ can also be driven via an open collector transistor as shown below. The diode and resistor serve to suppress any possible high amplitude negative voltage spikes to the VADJ input resulting from the collector to emitter capacitance of the transistor. Any negative voltage spikes will cause errors in output current and/or unstable driver operation. AMLDL-Z -Vin VADJ 1st LED +Vout 1 1 -Vout PWM 0V 1.25V GND Last LED AMLDL-Z -Vin VADJ 1st LED +Vout 1 1 -Vout RADJ CADJ The output current is given by: Iout ˜ (0.08 / X) x Radj (Radj + 200K) The output current is given by: 0.1 x DPWM X Iout ˜ [for 0<DPWM<1] AMLDL-Z -Vin VADJ 1st LED +Vout 1 1 -Vout PWM 0V GND 1 Last LED 1.25V 10K |
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