RCDE-48-1.05 Recom Power

C C S S O O R R w E E M M T T P P R R a L L R I I E E A A r V V N N A N N T T r Low cost buck LED driver Features 6-60V input Constant current output (350, 700 or 1050mA) DC/DC Converter dimmable Digital PWM and analog voltage dimming LED High efficiency up to 97% No internal E-Caps Driver RCDE-48 RoHS2 conform Description Constant 3 The RCDE-48 series is a step-down constant current source designed for driving high power LED Current applications from 12V, 24V or 48V nominal input voltages. 350, 700 or 1050mA output currents are available as standard. The input voltage range is from 6V up to 60VDC with UVLO. These high efficiency buck drivers have digital PWM and/or analog voltage dimming control which is capable of being Buck controlled by 3.3V logic. The dimming input can also be used as an CTRL pin. Typical application is a 48V powered lighting solution for up to 15 high brightness LEDs in series. LED Driver Selection Guide Part Input Output Output Efficiency Dimming (1) Number Voltage Range Voltage Range Current typ. Control VDC VDC mA % 22++ RoHSRoHS REACHREACH compliantcompliant compliantcompliant RCDE-48-0.35 6-60 3-52 0-350 97 Analog and PWM 10 from 1010 from 10 RCDE-48-0.70 6-60 3-52 0-700 97 Analog and PWM RCDE-48-1.05 6-60 3-52 0-1050 97 Analog and PWM All LED Drivers may not be used without a load. They must be switched on the primary side only. Noncompliance may damage the LED or reduce its lifetime. Notes: Note1: Efficiency is tested at nominal input and 15 LEDs (15 x V 3VDC = 45VDC) at +25C ambient F Model Numbering RCDE-48- nom. Input Voltage Output Current Ordering Examples RCDE-48-0.70 6-60 Vin 3-52Vout 0-700mA Analog and PWM Dimming www.recom-power.com REV.: 0/2020 L-1 O O P P E a C C R R O O Y M M n D D O O U U t C C C C E E y T T R R S SRCDE-48 DC/DC Converter Series Specifications (measured Ta= 25C, nom. Vin and 15 LEDs (15*3V=45V) unless otherwise stated) BASIC CHARACTERISTICS Parameter Condition Min. Typ. Max. Internal Input Filter capacitor Input Voltage Range nom Vin= 48VDC 6VDC 48VDC 60VDC DC-DC ON 5.6VDC Under Voltage Lockout (UVLO) nom. Vin= 48VDC DC-DC OFF 5.3VDC Standby Current nom. Vin= 48VDC DC-DC OFF 5mA Internal Operating Frequency 210kHz 550kHz RCDE-48-0.35 100mAp-p Output Ripple Current 20MHz BW RCDE-48-0.70 200mAp-p RCDE-48-1.05 320mAp-p RCDE-48-0.35 200mVp-p Output Ripple Noise 20MHz BW RCDE-48-0.70 300mVp-p RCDE-48-1.05 400mVp-p Reflected Back Ripple Current 50mAp-p RCDE-48-0.35 1VDC refer to DROPOUT VOLTAGE Dropout Voltage RCDE-48-0.70 1.5VDC 3VDC for detailed information RCDE-48-1.05 2VDC RCDE-48-0.35 Efficiency vs. Load Dropout Voltage vs. Load 3.0 100 2.5 90 80 2.0 70 1.5 60 50 1.0 40 0.5 30 20 0 2 3 4 5 6 7 8 9 10 11 12 13 14 15 10 Output Load Number of Diodes 0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Output Load Number of Diodes RCDE-48-0.70 Efficiency vs. Load Dropout Voltage vs. Load 3.0 100 2.5 90 80 2.0 70 1.5 60 50 1.0 40 0.5 30 20 0 2 3 4 5 6 7 8 9 10 11 12 13 14 15 10 Output Load Number of Diodes 0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Output Load Number of Diodes continued on next page www.recom-power.com REV.: 0/2020 L-2 Efficiency % Efficiency % Dropout Voltage VDC Dropout Voltage VDC