Series AMLDL-Z Up to 1000mA | 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 Input Voltage (V) Model Output Voltage (V) Maximum Rated Current (mA) Operating Temperature range -40ºC to +85ºC Open and Short LED Protection PWM/Digital and Analog Voltage dimming Remote ON/OFF Control Max Capacitive Load (uF) Efficiency (%) Package Type AMLDL-3030Z 7-30 2-28 300 47 95 DIP14 AMLDL-3035Z 7-30 2-28 350 47 95 DIP14 AMLDL-3050Z 7-30 2-28 500 47 95 DIP16 AMLDL-3060Z 7-30 2-28 600 47 95 DIP16 AMLDL-3070Z 7-30 2-28 700 47 95 DIP16 AMLDL-30100Z 7-30 2-28 1000 47 95 DIP16 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 Output current adjustment* 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 www.aimtec.com F 051e R9.I 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% Vin-Vout<20 ON – 0.2 – 0.3V (Vadj rise) OFF – 0.15-0.25V (Vadj fall) Vadj = 1.25V 25-100 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 Typical 40 - 380 -40 to +85 -40 to +125 Tel: +1 514 620 2722 1 of 14 VDC Maximum % mA Units % VDC mA µF %/oC mV p-p Units KHz o C o C Toll free: + 1 888 9 AIMTEC (924 6832) North America only Series AMLDL-Z Up to 1000mA | LED Driver General Specifications (continued) Parameters Maximum case temperature Thermal Impedance Cooling Humidity Case material Conditions Typical Free air convection +40 Free air convection Maximum 100 Units o o C C/W 95 % RH Non-Conductive Black Plastic (UL94-V0 rated) 2.6 (DIP14) g 6.2 (DIP 16) DIP 14 0.80 x 0.40 x 0.27 inches 20.32 x 10.16 x 6.88 mm DIP 16 0.80 x 0.40 x 0.40 inches 23.37 x 13.97 x 10.16 mm > 500 000hrs (MIL-HDBK-217 F at +25 oC) o 1.5mm from case for 10sec. 260 C Weight Dimensions (L x W x H) MTBF Maximum Soldering Temperature NOTES: 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 (CISPR22) IEC 61000-4-2 (Perf. Criteria A) IEC 61000-4-3 (Perf. Criteria A) IEC 61000-4-4 (Perf. Criteria A) IEC 61000-4-6 (Perf. Criteria A) IEC 61000-4-8 (Perf. Criteria A) Standards Pin Out Specifications DIP 14 Pin 1 2 7 8 14 Single - V Input Vadj - V Output + V Output + V Input DIP 16 Pin 1 2 3 7 8 9 10 15 16 - DC Supply PWM/ON/OFF or not used LED Cathode connection LED Anode connection + DC Supply Free Air Convection Derating Output Power (%) 100 - DC Supply - DC Supply PWM/ON/OFF or not used LED Cathode connection LED Cathode connection LED Anode connection LED Anode connection + DC Supply + DC Supply AMLDL-3030Z AMLDL-3035Z AMLDL-3050Z AMLDL-3060Z AMLDL-3070Z 80 60 Single - V Input - V Input Vadj - V Output - V Output + V Output + V Output + V Input + V Input Safe Operating Area 40 AMLDL-301000Z 20 0 - 40 - 20 0 20 40 60 71 80 85 100 Ambient Temperature º C www.aimtec.com F 051e R9.I Tel: +1 514 620 2722 2 of 14 Toll free: + 1 888 9 AIMTEC (924 6832) North America only Series AMLDL-Z Up to 1000mA | LED Driver Dimensions 15.24 (0.60) 23.40 (0.92) 2.81 (0.11) 1 2 3 7 Bottom View 14 2.54 (0.10) 8 16 15 0.50 (0.02) Printed Face 7 8 Bottom View 1.92 (0.08) 1 2 10.16 (0.40) 17.78 (0.70) 14.00 (0.55) 2.54 (0.10) 5.08 (0.20) 20.32 (0.80) DIP 16: AMLDL-3050Z, AMLDL-3060Z, AMLDL3070Z, AMLDL-30100Z 10 9 0.50 (0.02) Printed Face 3.05 (0.12) 10.16 (0.40) 6.88 (0.27) 10.16 (0.40) DIP 14: AMLDL-3030Z & AMLDL3035Z 3.05 (0.12) 0.50 (0.02) Application circuit examples: +Vout +Vout + AMLDL-Z -Vin + st 1 1 LED -Vout -Vin -Vout 1 Analogue DIM PWM Dim/ON/OFF AC In 5Vac to 21Vac +Vin 100uF to 330uF + +Vout AMLDL-Z - 1 www.aimtec.com F 051e R9.I 1 1st LED 1 1 Last LED VADJ Tel: +1 514 620 2722 3 of 14 1st LED -Vout -Vin AC In 1 Last LED Analogue DIM PWM Dim/ON/OFF 0.1uF optional AMLDL-Z 1 Last LED Analogue DIM PWM Dim/ON/OFF Toll free: + 1 888 9 AIMTEC (924 6832) North America only Series AMLDL-Z Up to 1000mA | LED Driver Output Current Adjustment by External DC Control Voltage: The nominal output current is given by: Iout ˜ 0.08 x Vadj X Model Number AMLDL-3030Z AMLDL-3035Z AMLDL-3050Z AMLDL-3060Z AMLDL-3070Z AMLDL-30100Z X 0.327 0.280 0.197 0.165 0.1388 0.095 +Vout VADJ 0.3 -1.25V 1st LED 1 AMLDL-Z -Vout -Vin Last LED 1 GND Vctrl +5v +Vin R1 30K +Vout VADJ R2 10K 1 AMLDL-Z 10K 1st LED VADJ -Vout -Vin +Vout 10K 1 TL431 10K 1 AMLDL-Z -Vin 1 1st LED -Vout 1 VADJ = R2 R1 + R2 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 0.22µF. 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 R9.I Tel: +1 514 620 2722 4 of 14 AMLDL-Z -Vin 1 1st LED -Vout 1 Toll free: + 1 888 9 AIMTEC (924 6832) North America only Series AMLDL-Z Up to 1000mA | 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: 0.1 x DPWM [for 0<DPWM<1] Iout ˜ X +Vout 1.25V Model Number AMLDL-3030Z AMLDL-3035Z AMLDL-3050Z AMLDL-3060Z AMLDL-3070Z AMLDL-30100Z PWM VADJ -Vin 0V X 0.327 0.280 0.197 0.165 0.1388 0.095 AMLDL-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 AMLDL-Z -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-Z -Vin 1 1st LED -Vout Last LED 1 1 GND www.aimtec.com F 051e R9.I Tel: +1 514 620 2722 5 of 14 Toll free: + 1 888 9 AIMTEC (924 6832) North America only Series AMLDL-Z Up to 1000mA | 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. +Vin -Vin AMSR-7805-Z + 10uF 35V - + 100nF - + 10uF 8 Vcc 470 - 16V 7 + 100nF - 4 Reset Discharge 1N4148 1 1 10K 2SD11782K 6 Threshold VR 100K Out 3 1 210 2 Trigger + 100nF - CRT_V GND 1N4148 5 + 1 NE 555 PMW AMLDL-Z Pin 2 (VADJ) - 100nF AMLDL-Z Pin 1 Output Current Adjustment by PWM Control (Flash): +Vin AMSR-7805-Z 10uF 35V -Vin + - + 10uF + 100nF - - 16V VR 100K 8 Vcc 7 + 100nF - 4 Reset Discharge 10K 2SD11782K 6 Threshold 2K Out 3 1 210 2 Trigger + 10uF GND - 16V CRT_V 1 NE 555 PMW AMLDL-Z Pin 2 (VADJ) 1N4148 5 + 100nF - AMLDL-Z Pin 1 Recommended Class B EMI Filter: +Vin -Vin + 10uF - L AMLDL-Z - VADJ www.aimtec.com F 051e R9.I +Vout + 1 1st LED -Vout 1 Last LED Analogue DIM PWM Dim/ON/OFF Tel: +1 514 620 2722 6 of 14 Model Number AMLDL-3030Z AMLDL-3035Z AMLDL-3050Z AMLDL-3060Z AMLDL-3070Z AMLDL-30100Z Inductor Value (µH) 68 68 27 27 27 27 Toll free: + 1 888 9 AIMTEC (924 6832) North America only Series AMLDL-Z Up to 1000mA | LED Driver Thermal Feedback Circuit +Vin R1 4.7K BZX284C6V2 1 R3 10K Thermistor B 3900 R2 10K +Vin VADJ AMLDL-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.I Tel: +1 514 620 2722 7 of 14 Toll free: + 1 888 9 AIMTEC (924 6832) North America only Series AMLDL-Z Up to 1000mA | LED Driver Output Current Adjustment By External DC Control Voltage: 1N4148 6.2K VADJ 1.25V +Vout AMLDL-Z 1 10K -Vin 1 1st LED -Vout Last LED 1 GND 1N4148 6.2K VADJ 1.25V +Vout AMLDL-Z 1 10K -Vin 1 1st LED -Vout Last LED 1 GND 1N4148 +Vout AMLDL-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 AMLDL-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 AMLDL-Z 1 10K -Vin 1 1st LED -Vout Last LED 1 GND 1N4148 6.2K VADJ 1.25V +Vout AMLDL-Z 1 10K -Vin 1 1st LED -Vout Last LED 1 GND www.aimtec.com F 051e R9.I Tel: +1 514 620 2722 8 of 14 Toll free: + 1 888 9 AIMTEC (924 6832) North America only Series AMLDL-Z Up to 1000mA | LED Driver Typical Characteristics: AMLDL-3030Z Frequency (KHz) Operating Frequency vs Input Voltage (Forward Voltage = 3.5V per LED) Efficiency (%) 100 400 375 350 95 325 300 4 LED 225 200 85 175 150 75 50 25 5 LED 6 LED 7 LED 3 LED 90 275 250 125 100 Efficiency vs Vin ( Forward Voltage = 3.5V per LED) 2 LED 80 1 LED 2 LED 75 3 LED 4 LED 5 LED 6 LED 7 LED 1 LED 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 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) 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.I Tel: +1 514 620 2722 9 of 14 Toll free: + 1 888 9 AIMTEC (924 6832) North America only Series AMLDL-Z Up to 1000mA | LED Driver Typical Characteristics: AMLDL-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 (%) 350 95.00 325 300 3 LED 250 225 7 LED 4 LED 90.00 275 6 LED 5 LED 2 LED 85.00 200 175 80.00 150 125 1 LED 100 75 50 25 75.00 1 LED 2 LED 3 LED 5 LED 4 LED 6 LED 7 LED 1 LED 70.00 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 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) 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.I Tel: +1 514 620 2722 10 of 14 Toll free: + 1 888 9 AIMTEC (924 6832) North America only Series AMLDL-Z Up to 1000mA | LED Driver Typical Characteristics: AMLDL-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.I Tel: +1 514 620 2722 11 of 14 Toll free: + 1 888 9 AIMTEC (924 6832) North America only Series AMLDL-Z Up to 1000mA | LED Driver Typical Characteristics: AMLDL-3060Z Operating Frequency vs Input Voltage Frequency (KHz) (Forward Voltage = 3.5V per LED) 325 300 275 250 225 200 175 150 125 100 75 50 25 0 Efficiency vs Vin (Forward Voltage = 3.5V per LED) Efficiency (%) 100% 95% 3 LED 4 LED 5 LED 6 LED 7 LED 2 LED 90% 85% 1 LED 80% 1 LED 2 LED 3 LED 5 LED 6 LED 4 LED 7 LED 75% 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% Vin (V) ILED (mA) 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 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) www.aimtec.com F 051e R9.I Tel: +1 514 620 2722 12 of 14 Toll free: + 1 888 9 AIMTEC (924 6832) North America only Series AMLDL-Z Up to 1000mA | LED Driver Typical Characteristics: AMLDL-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.I Tel: +1 514 620 2722 13 of 14 Toll free: + 1 888 9 AIMTEC (924 6832) North America only Series AMLDL-Z Up to 1000mA | LED Driver Typical Characteristics: AMLD-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.I Tel: +1 514 620 2722 14 of 14 Toll free: + 1 888 9 AIMTEC (924 6832) North America only