2:1 Wide input range regulated converter Features 2W in compact SMD package DC/DC Converter -40C to +85C operating temperature full load High 3kVDC/1 second (1kVAC/1 minute) Regulated Continuous short circuit protection Converters IEC/EN62368-1 certified (CB scheme) RTC2 Description 2 Watt The RTC2 is a 2W, open-frame, SMD, isolated DC/DC converter with 2:1 input voltage range. It is SMD available with 5V (4.5-9V) or 24V (18-36V) inputs and offers a single 5V output which is short circuit protected. The output is tightly regulated with less than 50mV output ripple. There is no minimum load Single Output requirement. The operating temperature is -40C up to 100C (with derating). Isolation is 3kVDC/1kVAC (functional Isolation) and a control pin is fitted as standard. The converter is IEC/EN62368-1 certified and is 10/10 RoHS-conform. Class B EMC conformity can be reached with a simple external LC filter. Selection Guide Part nom. Input Output Output Efficiency max. Capacitive (1) (2) Number Voltage Voltage Current typ. Load VDC VDC mA % F RTC2-0505SRW 4.5 - 9 5 400 76 4700 RTC2-2405SRW 18 - 36 5 400 80 4700 Notes: Note1: Efficiency is tested at nominal input and full load at +25C ambient. Note2: Max. cap. load is tested at minimum input and full resistive load. Model Numbering IEC/EN62368-1 certified CB Report RTC2- SRW- EN55022 (3) nom. Input Voltage Packaging Output Voltage Single Notes: Note3: without suffix, standard tray packaging add suffix -R for Tape and Reel packaging Ordering Examples: RTC2-0505SRW = nom.Vin=5VDC, nom. Vout= 5VDC, standard 3kVDC/1 second isolation, tray packaging RTC2-2405SRW-R = nom.Vin= 24DC, nom. Vout= 5VDC, standard 3kVDC/1 second isolation, tape and reel packaging Specifications (measured Ta= 25C, nominal Vin, full load and after warm up unless otherwise specified) BASIC CHARACTERISTICS Parameter Condition Min. Typ. Max. Internal Input Filter capacitor 5VDC 4.5VDC 5VDC 9VDC Input Voltage Range nom. Vin= 24VDC 18VDC 24VDC 36VDC 15VDC 5VDC Input Surge Voltage 100ms max. nom. Vin= 50VDC 24VDC 5VDC 40mA Quiescent Current nom. Vin= 24VDC 3mA continued on next page www.recom-power.com REV.: 4/2018 ECO-1RTC2 DC/DC Converter Series Specifications (measured Ta= 25C, nominal Vin, full load and after warm up unless otherwise specified) Parameter Condition Min. Typ. Max. Start-up time 500s 450s Rise Time 10s Hold-up Time 180kHz 5VDC Internal Operating Frequency nom Vin= 24VDC 210kHz Minimum Load 0% (4) Output Ripple and Noise 20MHz BW 50mVp-p DC-DC ON Open or 0.0V<Vr<0.8VDC ON/OFF CTRL DC-DC OFF 2V<Vr<6VDC 40mA 5VDC Input Current of CTRL Pin nom Vin= 24VDC 16mA Standby Current 0.75mA 1.5mA Notes: Note4: Measurements are made with a 0.1F MLCC across output. (low ESR) Efficiency vs. Load RTC2-0505SRW RTC2-2405SRW 90 90 90 90 80 80 80 80 70 70 70 70 60 60 60 60 50 50 50 50 40 40 40 40 30 30 30 30 20 20 20 20 4.5Vin 4.5Vin 18Vin 18Vin 5Vin 5Vin 24Vin 24Vin 10 10 10 10 9Vin 9Vin 36Vin 36Vin 0 0 0 0 0 0.10 0.20.1 0.20.3 0.40.3 0.4 0 0.10 0.20.1 0.20.3 0.40.3 0.4 Output Load A Output Load A Output Load A Output Load A REGULATIONS Parameter Condition Value Output Accuracy 2.0% typ. Line Regulation low line to high line, full load 0.2% max. Load Regulation 0% to 100% load 0.5% max. Accuracy vs. Load RTC2-0505SRW RTC2-2405SRW 0.7 0.7 0 0 0.6 0.6 -0.05 -0.05 0.5 0.5 -0.1 -0.1 0.4 0.4 -0.15 -0.15 0.3 0.3 -0.2 -0.2 0.2 0.2 -0.25 -0.25 4.5Vin 4.5Vin 18Vin 18Vin 0.1 0.1 5Vin 5Vin -0.3 -0.3 24Vin 24Vin 9Vin 9Vin 36Vin 36Vin 0 0 -0.35 -0.35 0 0.10 0.10.2 0.20.3 0.30.4 0.4 0 0.10 0.10.2 0.20.3 0.30.4 0.4 Output Load A Output Load A Output Load A Output Load A www.recom-power.com REV.: 4/2018 ECO-2 Efficiency % Accuracy % Accuracy % Efficiency % Accuracy % Efficiency % Accuracy % Efficiency %