Series AMLDLW-Z Up to 1000mA | LED Driver FEATURES: • • • • • Models Single output Wire Connections Constant current output Wide (4:1) input voltage range High efficiency up to 95% Step Down DC/DC LED driver Input Voltage (V) Model Output Voltage (V) • • • • • Operating Temperature range -40ºC to +85ºC Open and Short LED Protection PWM/Digital and Analog Voltage dimming Remote ON/OFF Control RoHS Compliant Maximum Rated Current (mA) Max Capacitive Load (uF) Efficiency (%) AMLDLW-3035Z 7-30 2-28 350 47 95 AMLDLW-3050Z 7-30 2-28 500 47 95 AMLDLW-3070Z 7-30 2-28 700 47 95 AMLDLW-30100Z 7-30 2-28 1000 47 95 NOTE: All specifications in this datasheet are measured at an ambient temperature of 25°C, 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 Control Voltage Range limits Maximum Analog pin drive current Output Specifications Parameters Current accuracy Output Voltage range Output current Short Circuit protection Output no load Protection Max load capacitance Temperature coefficient Ripple & Noise General Specifications Parameters Switching frequency Operating temperature Storage temperature Maximum case temperature Thermal Impedance Cooling www.aimtec.com F 051e R9.D Nominal 24 Vadj = 1.25V Vin = 30V, Vadj <0.15 Typical 7-30 Capacitor 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% ON – 0.2 – 0.3V (Vadj rise) OFF – 0.15-0.25V (Vadj fall) Vadj = 1.25V 1 Conditions Typical ±6 2-28 Maximum V input = 30V Vin – Vout >1.5V to 3V 300 Regulated at the rated current for each model Continuously 47 Ta = -40 to +85°C ±0.05 20MHz Bandwidth 250 Conditions 100% load Free air convection Typical 40 - 380 -40 to +85 -40 to +125 +40 Free air convection Tel: +1 514 620 2722 1 of 12 VDC Maximum 100 mA Units % VDC mA µF %/oC mV p-p Units KHz o C o C o C o C/W Toll free: + 1 888 9 AIMTEC (924 6832) North America only Series AMLDLW-Z Up to 1000mA | LED Driver General Specifications (continued) Parameters Humidity Case material Weight Dimensions (L x W x H) MTBF Maximum Soldering Temperature NOTES: Conditions Typical Maximum Units 95 Non-Conductive Black Plastic (UL94-V0 rated) 6.2 0.92 x 0.55 x 0.40 inches 23.40 x 14.00 x 10.16 mm > 500 000hrs (MIL-HDBK-217 F at +25 oC) 1.5mm from case for 10sec. 260 % RH g o 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 Pin Out Specifications Pin 1(Black) 2(White) 8(Blue) 9(Yellow) 16 (Red) Single - V Input Vadj -V Output + V Output + V Input www.aimtec.com F 051e R9.D 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 Description - DC Supply PWM/ON/OFF or not used LED Cathode Connection LED Anode connection + DC Supply Tel: +1 514 620 2722 2 of 12 Toll free: + 1 888 9 AIMTEC (924 6832) North America only Series AMLDLW-Z Up to 1000mA | LED Driver Dimensions 23.40 (0.92) 19.60 (0.77) 9 11.00 (0.43) 14.00 (0.55) 16 Bottom View 2 8 1 14.00 (0.55) 10.16 (0.40) 10.16 (0.40) 14.00 (0.55) 16 8 9 10.00 (0.39) 10.00 (0.39) 100.00 (3.94) 100.00 (3.94) 1 2 All Wires are Stripped & Tinned Lead Wires are under the specifications of general lamps: Wire is UL 1015/CSATEM listed #22AWG / 600V / 105ºC www.aimtec.com F 051e R9.D Tel: +1 514 620 2722 3 of 12 Toll free: + 1 888 9 AIMTEC (924 6832) North America only Series AMLDLW-Z Up to 1000mA | LED Driver Application circuit examples: +Vout + +Vout + AMLDLW-Z -Vin 1 1st LED AMLDLW-Z -Vout -Vin 1 1 1st LED 1 1 Last LED -Vout 1 Analogue DIM PWM Dim/ON/OFF Last LED Analogue DIM PWM Dim/ON/OFF AC In 5Vac to 21Vac +Vin +Vout 100uF to + 330uF - 0.1uF optional AMLDLW-Z 1 -Vout -Vin AC In 1 VADJ 1st LED Last LED Analogue DIM PWM Dim/ON/OFF Output Current Adjustment by External DC Control Voltage: The nominal output current is given by: Iout ˜ 0.08 x Vadj +Vout X Model Number AMLDL-3035Z AMLDL-3050Z AMLDL-3070Z AMLDL-30100Z Vctrl R1 VADJ 0.3 -1.25V X 0.280 0.197 0.1388 0.095 -Vin -Vout 1 Last LED GND +5v +Vin 30K +Vout VADJ R2 AMLDLW-Z 1st LED 1 10K AMLDLW-Z -Vin 1 10K 1st LED +Vout 10K VADJ -Vout 1 TL431 1 10K AMLDLW-Z -Vin 1 1st LED -Vout 1 [ R2 R1 + R2 www.aimtec.com F 051e R9.D [ VADJ = X VCTRL Tel: +1 514 620 2722 4 of 12 Toll free: + 1 888 9 AIMTEC (924 6832) North America only Series AMLDLW-Z Up to 1000mA | LED Driver 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: +Vout Ioutnom= Iout x Radj VADJ Radj + 200K CADJ NOTE: Typical error is ±10% with resistive dimming control 1 AMLDLW-Z 1st LED -Vout -Vin RADJ 1 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: 0.1 x DPWM [for 0<DPWM<1] Iout ˜ X +Vout 1.25V Model Number AMLDLW-3035Z AMLDLW-3050Z AMLDLW-3070Z AMLDLW-30100Z PWM VADJ -Vin 0V X 0.280 0.197 0.1388 0.095 AMLDLW-Z 1 1st LED -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 1 AMLDLW-Z -Vin 1 1st LED -Vout Last LED 1 GND www.aimtec.com F 051e R9.D Tel: +1 514 620 2722 5 of 12 Toll free: + 1 888 9 AIMTEC (924 6832) North America only Series AMLDLW-Z Up to 1000mA | LED Driver 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 1 AMLDLW-Z 10K 1st LED -Vout -Vin Last LED 1 1 GND Output Current Adjustment by PWM Control (Dimming): A PWM signal must have a frequency of greater than 100Hz to prevent any visible flicker. +Vin Vin AMSR-7805-Z 10uF 35V + + - - 100nF + + 10uF - 16V VR 100K 7 2K 6 2 8 Vcc 4 - 100nF Reset Discharge Threshold Out Trigger + 10uF CRT_V GND - 16V 1 1N4148 210 5 + 1 NE 555 3.3K 2SD11782K 3 - PMW AMLDLW-Z Pin 2 (VADJ) AMLDLW-Z Pin 1 100nF Output Current Adjustment by PWM Control (Flash): AMSR-7805-Z +Vin 10uF 35V -Vin + + - - 100nF + 10uF - 16V 470 7 1 1 VR 100K 6 2 - www.aimtec.com F 051e R9.D 4 Vcc Reset - 100nF Discharge 1N4148 + + 8 Threshold Out Trigger GND 100nF NE 555 1 Tel: +1 514 620 2722 6 of 12 CRT_V 3.3K 2SD11782K 3 1 210 5 + - 100nF 1N4148 PMW AMLDLW-Z Pin 2 (VADJ) AMLDLW-Z Pin 1 Toll free: + 1 888 9 AIMTEC (924 6832) North America only Series AMLDLW-Z Up to 1000mA | LED Driver Recommended Class B EMI Filter: +Vin + 10uF - -Vin L +Vout + 1 AMLDLW-Z -Vout - 1 VADJ 1st LED Last LED Model Number AMLDLW-3035Z AMLDLW-3050Z AMLDLW-3070Z AMLDLW-30100Z Inductor Value (µH) 68 27 27 27 Analogue DIM PWM Dim/ON/OFF Thermal Feedback Circuit +Vin R1 4.7K BZX284C6V2 1 R3 10K Thermistor B 3900 R2 10K +Vin VADJ AMLDLW-Z 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 25ºC, 40ºC, and 60ºC. 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 R9.D Tel: +1 514 620 2722 7 of 12 Toll free: + 1 888 9 AIMTEC (924 6832) North America only Series AMLDLW-Z Up to 1000mA | LED Driver Output Current Adjustment By External DC Control Voltage: 1N4148 6.2K VADJ 1.25V +Vout AMLDLW-Z 1 10K -Vin 1 1st LED -Vout Last LED 1 GND 1N4148 6.2K VADJ 1.25V +Vout AMLDLW-Z 1 10K -Vin 1 1st LED -Vout Last LED 1 GND 1N4148 +Vout AMLDLW-Z 1 +5V ~ +Vin 6.2K VADJ 1.25V 10K -Vin 1 1st LED -Vout Last LED 1 GND 4.7K 1N4148 TL431 OUT: 0 ~ 2.5V 10K +Vout AMLDLW-Z 1 1 6.2K VADJ 1.25V 10K -Vin 1 1st LED -Vout Last LED 1 GND GND 1N4148 6.2K VADJ 1.25V +Vout AMLDLW-Z 1 10K -Vin 1 1st LED -Vout Last LED 1 GND 1N4148 6.2K VADJ 1.25V +Vout AMLDLW-Z 1 10K -Vin 1 1st LED -Vout Last LED 1 GND www.aimtec.com F 051e R9.D Tel: +1 514 620 2722 8 of 12 Toll free: + 1 888 9 AIMTEC (924 6832) North America only Series AMLDLW-Z Up to 1000mA | LED Driver Typical Characteristics: AMLDLW-3035Z Operating Frequency vs Input Voltage (Forward Voltage = 3.5V per LED) Frequency (KHz) 375 Efficiency vs Vin (Forward Voltage = 3.5V per LED) Efficiency (%) 95.00 5 LED 350 325 3 LED 300 2 LED 85.00 250 7 LED 4 LED 90.00 275 6 LED 225 80.00 200 175 150 75.00 125 1 LED 100 75 50 25 1 LED 2 LED 3 LED 5 LED 4 LED 1 LED 70.00 6 LED 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 7 LED Vin (V) 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Vin (V) Output Current Vs VADJ ILED (mA) 375 350 325 300 275 250 225 200 175 150 125 100 75 50 25 0 0 0.25 0.35 0.45 0.55 0.65 0.75 0.85 0.95 1.05 1.15 1.25 1.3 1.35 VADJ (V) www.aimtec.com F 051e R9.D Tel: +1 514 620 2722 9 of 12 Toll free: + 1 888 9 AIMTEC (924 6832) North America only Series AMLDLW-Z Up to 1000mA | LED Driver Typical Characteristics: AMLDLW-3050Z Frequency (KHz) Efficiency (%) Operating Frequency vs Input Voltage (Forward Voltage = 3.5V per LED) 350 Efficiency vs Vin (Forward Voltage = 3.5V per LED) 100.00% 325 95.00% 300 3 LED 2 LED 4 LED 5 LED 6 LED 7 LED 275 250 90.00% 225 1LED 200 85.00% 175 150 80.00% 125 1 LED 100 75 50 1 LED 5 LED 3 LED 2 LED 6 LED 4 LED 7 LED 75.00% 25 7 8 70.00% 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Vin (V) Vin (V) Output Current Vs VADJ ILED (mA) 600 500 400 300 200 100 0 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2 1.3 VADJ (V) www.aimtec.com F 051e R9.D Tel: +1 514 620 2722 10 of 12 Toll free: + 1 888 9 AIMTEC (924 6832) North America only Series AMLDLW-Z Up to 1000mA | LED Driver Typical Characteristics: AMLDLW-3070Z Frequency (KHz) Operating Frequency vs Input (Forward Voltage = 3.5V per LED)) Efficiency (%) Efficiency vs Vin (Forward Voltage = 3.5V per LED) 100% 350 325 300 95% 275 250 3 LED 4 LED 5 LED 6 LED 7 LED 2 LED 90% 225 1 LED 200 85% 175 150 80% 125 100 75 50 25 1 LED 2 LED 5 LED 3 LED 4 LED 75% 7 LED 6 LED 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 70% 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Vin (V) Vin (V) Output Current Vs VADJ ILED (mA) 700 600 500 400 300 200 100 0 0.05 0.15 0.25 0.35 0.45 0.55 0.65 0.75 0.85 0.95 1.05 1.15 1.25 VADJ (V) www.aimtec.com F 051e R9.D Tel: +1 514 620 2722 11 of 12 Toll free: + 1 888 9 AIMTEC (924 6832) North America only Series AMLDLW-Z Up to 1000mA | LED Driver Typical Characteristics: AMLDLW-30100Z Frequency (KHz) Operating Frequency vs Input Voltage (Forward Voltage = 3.5V per LED) Efficiency (%) 100% 300 275 95% 250 225 175 85% 150 100 3 LED 75 3 LED 2 LED 25 7 8 5 LED 6 LED 7 LED 1 LED 80% 1 LED 50 4 LED 2 LED 90% 200 125 Efficiency vs Vin (Forward Voltage = 3.5V per LED) 75% 5 LED 4 LED 7 LED 6 LED 70% 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Vin (V) Vin (V) ILED (mA) Output Current Vs VADJ 1100 1000 900 800 700 600 500 400 300 200 100 0 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2 1.3 VADJ (V) 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 25°C, 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 R9.D Tel: +1 514 620 2722 12 of 12 Toll free: + 1 888 9 AIMTEC (924 6832) North America only