C C S S O O R R E E M M T T P P R R L L I I E E A A V V N N N N T T 3W isolated DC/DC converter Features High 5.2kVDC/1min isolation Wide operating temperature range: -40C to +85C DC/DC Converter Ideal for IGBT/Si/SiC/GaN gate drive power Unregulated IEC/EN/UL CSA 62368-1 certified Less than 10pF isolation capacitance Converters RA3 Compact DIP16 SMD package Description 3 Watt 3 The RA3 series features 3-watt DC/DC converters which are especially designed to power transistor SMD gate drivers. The modules are available with input voltages of 5, 12, or 24VDC with single or dual asymmetric outputs to cover the latest Si, SiC, and GaN transistors on the market today. The Single and Dual compact SMD design ensures that required board space is minimal - especially on multilayer PCBs. The modules offer a robust 5.2kVDC/1min isolation and an isolation capacitance less than 10pF. The operating temperature range of -40C to +85C at full load meets harsh environmental requirements for Output renewable energy such as solar inverters, induction heating, telecom, EV battery chargers, and motor drives. Selection Guide Part nom. Input Output Output Efficiency max. Capacitive (1) (2) Number Voltage Voltage 1/2 Current typ. Load VDC VDC mA % F RA3-0508S/SMD 8 375 81 470 5 2+ RoHS REACH compliant RA3-050701D/SMD +7/ -1 +420/ -100 79 200/ 680 compliant 5 10 from 10 RA3-051503D/SMD +15/ -3 +100/ -500 78 150/ 680 5 RA3-052005D/SMD +20/ -5 +75/ -300 80 47/ 680 5 UL62368-1 (pending) RA3-1208S/SMD 12 8 375 81 470 CAN/CSA-C22.2 No. 62368-1 (pending) RA3-1209S/SMD 9 334 80 470 12 IEC/EN62368-1 (pending) RA3-120701D/SMD +7/ -1 +420/ -100 82 200/ 680 12 EN61204-3 compliant RA3-121503D/SMD +15/ -3 +100/ -500 79 150/ 680 CB Report 12 RA3-122005D/SMD +20/ -5 +75/ -300 80 47/ 680 12 RA3-2408S/SMD 24 8 375 82 470 RA3-240701D/SMD 24 +7/ -1 +420/ -100 80 200/ 680 RA3-241503D/SMD +15/ -3 +100/ -500 80 150/ 680 24 RA3-242005D/SMD +20/ -5 +75/ -300 81 47/ 680 24 Notes: Note1: Efficiency is tested a t nominal input and full load at +25C ambient Note2: Max Cap Load is tested at nominal input and constant resistive load Model Numbering RA3- /SMD-R (3) nom. Input Voltage Packaging Output Voltage 1 SMD package Output Voltage 2 Single or Dual Notes: Note3: add suffix -R for tape and reel packaging, refer to PACKAGING INFORMATION Ordering Examples: RA3-0508S/SMD 5Vin 8Vout - Single SMD RA3-122005D/SMD 12Vin +20Vout -05Vout Dual SMD RA3-121503D/SMD-R 12Vin +15Vout -03Vout Dual SMD tape and reel packaging www.recom-power.com REV.: 0/2021 ECO-1 O O P P C C R R O O M M D D O O U U C C Preliminary C C E E T T R R S SRA3 DC/DC Converter Series Specifications (measured Ta= 25C, nom. Vin, full load and after warm-up unless otherwise stated) BASIC CHARACTERISTICS Parameter Condition Min. Typ. Max. Internal Input Filter internal capacitors Input Voltage Range 10% Minimum Load 0% Internal Operating Frequency 100% load at nominal V 20kHz IN (4) Output Ripple and Noise 20MHz BW 220mVp-p Notes: Note4: Measurements are made with a 0.1F MLCC across output (low ESR) Efficiency vs. Load RA3-0508S/SMD RA3-1209S/SMD 100 100 90 90 80 80 70 70 60 60 50 50 40 40 30 30 20 20 10 10 0 0 0 10 20 30 40 50 60 70 80 90 100 0 10 20 30 40 50 60 70 80 90 100 Output Load % Output Load % RA3-0511503D/SMD RA3-242005D/SMD 100 100 90 90 80 80 70 70 60 60 50 50 40 40 30 30 20 20 10 10 0 0 0 10 20 30 40 50 60 70 80 90 100 0 10 20 30 40 50 60 70 80 90 100 Output Load % Output Load % www.recom-power.com REV.: 0/2021 ECO-2 Preliminary Efficiency % Efficiency % Efficiency % Efficiency %