Click on Series name for product info on aimtec.com Series AMLDL-RZ Up to 700mA | LED Driver FEATURES: * * * * Step Down DC/DC LED driver Constant current output Wide (4:1) input voltage range High efficiency up to 95% * * * * Models Single output Model Input Voltage (V) Output Voltage (V) Maximum Rated Current (mA) AMLDL-3050-RZ AMLDL-3060-RZ AMLDL-3070-RZ 7-30 7-30 7-30 2-28 2-28 2-28 500 600 700 Operating Temperature range -40C to +71C Open and Short LED Protection PWM/Digital and Analog Voltage dimming Remote ON/OFF Control Max Capacitive Load (uF) Efficiency (%) Package Type 95 95 95 DIP14 DIP14 DIP14 47 47 47 NOTE: All specifications in this datasheet are measured at an ambient temperature of 25C, humidity<75%, nominal input voltage and at rated output load unless otherwise specified. Input Specifications Parameters Voltage range Filter Absolute Maximum Rating Peak Input Voltage time DC/DC ON (Leave open if not used) DC/DC OFF Maximum Remote pin drive current Quiescent Current in Shutdown mode On/Off Control (Digital Control) Minimum Switch ON/OFF time On/Off Control (Analog Dimming Control) (Leave open if not used) Drive with DC Voltage Output current adjustment* Control Voltage Range limits Maximum Analog pin drive current Output Specifications Parameters Current accuracy Output Voltage range Short Circuit protection Output no load Protection Max load capacitance Temperature coefficient Ripple & Noise General Specifications Parameters Switching frequency Operating temperature Storage temperature www.aimtec.com F 051e R12.F Nominal Typical 24 7-30 Capacitor Vadj = 1.25V Vin = 30V, Vadj <0.15 ON -Open or 0.3V<Vadj<1.25 OFF(shutdown) - Vadj<0.15 Max PWM Frequency 1KHz 200 Input voltage range Maximum Units 40 500 VDC ms 1 0.25 mA mA ns 0.3-1.25 VDC 0.3V < VADJ<1.25V to adjust output current from 25% to 100% Vin-Vout<20 ON - 0.3< Vadj <1.25V OFF - Vadj< 0.15 Vadj = 1.25V 25-100 1 Conditions Typical Maximum 10 V input = 30V 2-28 Regulated at the rated current for each model Continuously 47 Ta = -40 to +85C 0.05 20MHz Bandwidth 450 Conditions 100% load Typical 70 - 450 -40 to +71 -40 to +125 Tel: +1 514 620 2722 1 of 17 VDC Maximum % mA Units % VDC F %/oC mV p-p Units KHz o C o C Toll free: + 1 888 9 AIMTEC (924 6832) North America only Series AMLDL-RZ Up to 700mA | LED Driver General Specifications (continued) Parameters Maximum case temperature Thermal Impedance Cooling Humidity Case material Weight Dimensions (L x W x H) MTBF Maximum Soldering Temperature NOTES: Conditions Typical Free air convection +40 Free air convection Maximum 105 Units o o C C/W 95 % RH Non-Conductive Black Plastic (UL94-V0 rated) 2.6 g 0.80 x 0.40 x 0.27 inches 20.32 x 10.16 x 6.88 mm >1, 600,000 hrs (MIL-HDBK-217 F at +25 oC) o 1.5mm from case for 10sec. 260 C 1.Reversed polarity at the input power will damage the driver. The input ground must not be connected to the negative output. 2.Leave the pin VADJ opened if not used , grounding VADJ will shut the driver off, connecting VADJ to +Vin will damage the driver. 3.Maximum output open voltage is equal to input voltage Safety Specifications Parameters Agency approvals CE, EN 55015, EN 61547 Electrostatic Discharge Immunity RF, Electromagnetic Field Immunity Electrical Fast Transient/Burst Immunity Surge Immunity RF, Conducted Disturbance Immunity Power frequency Magnetic Field Immunity Voltage dips, Short Interruptions Immunity Standards IEC 61000-4-2 IEC 61000-4-3 IEC 61000-4-4 IEC 61000-4-5 IEC 61000-4-6 IEC 61000-4-8 IEC 61000-4-11 Pin Out Specifications Pin 1 2 7 8 14 Single - V Input Vadj - V Output + V Output + V Input www.aimtec.com F 051e R12.F - DC Supply PWM/ON/OFF or not used LED Cathode connection LED Anode connection + DC Supply Tel: +1 514 620 2722 2 of 17 Toll free: + 1 888 9 AIMTEC (924 6832) North America only Series AMLDL-RZ Up to 700mA | LED Driver Dimensions 15.24 (0.60) 2.54 (0.10) 10.16 (0.40) 1 2 7 Bottom View 14 8 5.08 (0.20) 20.32 (0.80) 0.50 (0.02) 3.05 (0.12) 6.88 (0.27) Printed Face Application circuit examples: +Vout +Vout + AMLDL-RZ -Vin 1 + 1st LED AMLDL-RZ -Vout -Vin -Vout 1 1 1st LED 1 1 Last LED Last LED Analogue DIM PWM Dim/ON/OFF Analogue DIM PWM Dim/ON/OFF AC In 5Vac to 21Vac 0.1uF optional 1 +Vin 100uF to 330uF + +Vout AMLDL-RZ - 1 -Vout -Vin AC In www.aimtec.com F 051e R12.F VADJ Tel: +1 514 620 2722 3 of 17 1st LED 1 Last LED Analogue DIM PWM Dim/ON/OFF Toll free: + 1 888 9 AIMTEC (924 6832) North America only Series AMLDL-RZ Up to 700mA | LED Driver Output Current Adjustment by External DC Control Voltage: The nominal output current is given by: Vadj Ioutnom = Iout 1.25 +Vout VADJ 0.3 -1.25V 1 AMLDL-RZ 1st LED -Vout -Vin 1 Last LED GND Vctrl +5v R1 30K +Vin 10K +Vout VADJ R2 10K 1 AMLDL-RZ 1st LED VADJ -Vout -Vin +Vout 10K 1 TL431 10K 1 VADJ = R2 R1 + R2 AMLDL-RZ -Vin 1 1st LED -Vout 1 X Vctrl 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 0.22F. The nominal output current is given by: +Vout Ioutnom= Iout x Radj VADJ Radj + 200K NOTE: Typical error is 10% with resistive dimming control CADJ RADJ www.aimtec.com F 051e R12.F Tel: +1 514 620 2722 4 of 17 AMLDL-RZ -Vin 1 1st LED -Vout 1 Toll free: + 1 888 9 AIMTEC (924 6832) North America only Series AMLDL-RZ Up to 700mA | LED Driver 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. The output current is given by: Ioutnom = Iout x DPWM [for 0.01<DPWM<1] 1.25V +Vout PWM VADJ AMLDL-RZ -Vin 0V 1st LED 1 -Vout Last LED 1 GND 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. +Vout 1.25V VADJ PWM 10K 0V AMLDL-RZ -Vin 1 1st LED -Vout Last LED 1 1 GND Driving the VADJ from a Microcontroller The VADJ can be driven from an open drain output of a microcontroller as shown below. The diode and resistor serve to suppress any possible high amplitude negative voltage spikes to the VADJ input resulting from the drain to source capacitance of the FET. Any negative voltage spikes will cause errors in output current and/or unstable driver operation. +Vout VADJ MCU 10K AMLDL-RZ -Vin 1 1st LED -Vout Last LED 1 1 GND www.aimtec.com F 051e R12.F Tel: +1 514 620 2722 5 of 17 Toll free: + 1 888 9 AIMTEC (924 6832) North America only Series AMLDL-RZ Up to 700mA | LED Driver Output Current Adjustment by PWM Control (Dimming): A PWM signal must have a frequency of greater than 100Hz to prevent any visible flicker. AMSR-7805-Z +Vin 10uF 35V -Vin + + - - 100nF + 10uF - 16V 470 7 1 1 VR 100K 6 2 - 4 Vcc Reset - 100nF Discharge 1N4148 + + 8 Threshold Out Trigger CRT_V GND 100nF NE 555 3.3K 2SD11782K 3 PMW AMLDL-RZ Pin 2 (VADJ) 1 1N4148 210 5 + 1 - AMLDL-RZ Pin 1 100nF Output Current Adjustment by PWM Control (Flash): +Vin Vin AMSR-7805-Z 10uF 35V + + - - 100nF + + 10uF - 16V VR 100K 7 2K 6 2 8 Vcc 100nF Reset Threshold Out Trigger GND - 16V NE 555 F 051e R12.F - Discharge + 10uF www.aimtec.com 4 1 Tel: +1 514 620 2722 6 of 17 CRT_V 3.3K 2SD11782K 3 1 210 5 + - 100nF 1N4148 PMW AMLDL-RZ Pin2 (VADJ) AMLDL-RZ Pin 1 Toll free: + 1 888 9 AIMTEC (924 6832) North America only Series AMLDL-RZ Up to 700mA | LED Driver Thermal Feedback Circuit +Vin R1 4.7K BZX284C6V2 1 R3 10K Thermistor B 3900 R2 10K +Vin VADJ AMLDL-RZ 10K Q1 -Vin +Vout 1 1st LED -Vout Last LED 1 1 GND Thermally Connected The selection of components for the thermal feedback circuit is depends on the choice of R2 and R3 and the effectiveness of the LED heatsink. To optimize the LED brightness control at high temperatures, the LEDs must have a sufficient thermal extraction path, if not the reduction in drive current will not be optimal. The thermal control threshold points are set by adjusting R2. Three values (33K, 22K, and 10K) were tested. These values were chosen to provide thermal break points of approximately 25C, 40C, and 60C. Note, that the LED drive current will not continually dim to zero - the thermal controls applying DC control to that VADJ pin has a dimming ratio from maximum current of approximately 5:1. Once the reduced DC level drops below the shutdown threshold of around 200mV, the LED drive current will fall to zero and the LEDs will be off. The slope of the current reduction is determined by the beta value of the thermistor. The larger the Beta value the sharper will be the resultant current control response. The slope of the current reduction is also affected by Q1's base emitter voltage variation with temperature. www.aimtec.com F 051e R12.F Tel: +1 514 620 2722 7 of 17 Toll free: + 1 888 9 AIMTEC (924 6832) North America only Series AMLDL-RZ Up to 700mA | LED Driver Output Current Adjustment By External DC Control Voltage: 1N4148 6.2K VADJ 1.25V +Vout AMLDL-RZ 1 10K -Vin 1 1st LED -Vout Last LED 1 GND 1N4148 6.2K VADJ 1.25V +Vout AMLDL-RZ 1 10K -Vin 1 1st LED -Vout Last LED 1 GND 1N4148 VADJ 1.25V +Vout AMLDL-RZ 1 +5V ~ +Vin 6.2K 10K -Vin 1 1st LED -Vout Last LED 1 GND 4.7K 1N4148 TL431 OUT: 0 ~ 2.5V 10K 6.2K +Vout AMLDL-RZ 1 1 VADJ 1.25V 10K -Vin 1 1st LED -Vout Last LED 1 GND GND 1N4148 6.2K VADJ 1.25V +Vout AMLDL-RZ 1 10K -Vin 1 1st LED -Vout Last LED 1 GND 1N4148 6.2K VADJ 1.25V +Vout AMLDL-RZ 1 10K -Vin 1 1st LED -Vout Last LED 1 GND www.aimtec.com F 051e R12.F Tel: +1 514 620 2722 8 of 17 Toll free: + 1 888 9 AIMTEC (924 6832) North America only Series AMLDL-RZ Up to 700mA | LED Driver Typical Characteristics: AMLDL-3050-RZ Operating Frequency vs Input Voltage (Forward Voltage = 3.5V per LED) www.aimtec.com F 051e R12.F Tel: +1 514 620 2722 9 of 17 Toll free: + 1 888 9 AIMTEC (924 6832) North America only Series AMLDL-RZ Up to 700mA | LED Driver AMLDL-3050-RZ Efficiency vs Vin (Forward Voltage = 3.5V per LED) www.aimtec.com F 051e R12.F Tel: +1 514 620 2722 10 of 17 Toll free: + 1 888 9 AIMTEC (924 6832) North America only Series AMLDL-RZ Up to 700mA | LED Driver AMLDL-3050-RZ Output Current Vs VADJ www.aimtec.com F 051e R12.F Tel: +1 514 620 2722 11 of 17 Toll free: + 1 888 9 AIMTEC (924 6832) North America only Series AMLDL-RZ Up to 700mA | LED Driver Typical Characteristics: AMLDL-3060Z Operating Frequency vs Input Voltage (Forward Voltage = 3.5V per LED) www.aimtec.com F 051e R12.F Tel: +1 514 620 2722 12 of 17 Toll free: + 1 888 9 AIMTEC (924 6832) North America only Series AMLDL-RZ Up to 700mA | LED Driver AMLDL-3060Z Efficiency vs Vin (Forward Voltage = 3.5V per LED) www.aimtec.com F 051e R12.F Tel: +1 514 620 2722 13 of 17 Toll free: + 1 888 9 AIMTEC (924 6832) North America only Series AMLDL-RZ Up to 700mA | LED Driver AMLDL-3060Z Output Current Vs VADJ www.aimtec.com F 051e R12.F Tel: +1 514 620 2722 14 of 17 Toll free: + 1 888 9 AIMTEC (924 6832) North America only Series AMLDL-RZ Up to 700mA | LED Driver Typical Characteristics: AMLDL-3070Z Operating Frequency vs Input Voltage (Forward Voltage = 3.5V per LED) www.aimtec.com F 051e R12.F Tel: +1 514 620 2722 15 of 17 Toll free: + 1 888 9 AIMTEC (924 6832) North America only Series AMLDL-RZ Up to 700mA | LED Driver AMLDL-3070Z Efficiency vs Vin (Forward Voltage = 3.5V per LED) www.aimtec.com F 051e R12.F Tel: +1 514 620 2722 16 of 17 Toll free: + 1 888 9 AIMTEC (924 6832) North America only Series AMLDL-RZ Up to 700mA | LED Driver AMLDL-3070Z Output Current Vs VADJ NOTE: 1. Datasheets are updated as needed and as such, specifications are subject to change without notice. Once printed or downloaded, datasheets are no longer controlled by Aimtec; refer to www.aimtec.com for the most current product specifications. 2. Product labels shown, including safety agency certifications on labels, may vary based on the date manufactured. 3. Mechanical drawings and specifications are for reference only. 4. All specifications are measured at an ambient temperature of 25C, humidity<75%, nominal input voltage and at rated output load unless otherwise specified. 5. Aimtec may not have conducted destructive testing or chemical analysis on all internal components and chemicals at the time of publishing this document. CAS numbers and other limited information are considered proprietary and may not be available for release. 6. This product is not designed for use in critical life support systems, equipment used in hazardous environments, nuclear control systems or other such applications which necessitate specific safety and regulatory standards other the ones listed in this datasheet. 7. Warranty is in accordance with Aimtec's standard Terms of Sale available at www.aimtec.com. www.aimtec.com F 051e R12.F Tel: +1 514 620 2722 17 of 17 Toll free: + 1 888 9 AIMTEC (924 6832) North America only