R-78K-0.5
9Pages

• Efficiency up to 96%, no need for heatsinks • 4.5 - 36VDC wide input voltage • -40°C to +90°C ambient operation without derating • Pin compatible with 78 series regulators • Non isolated DC/DC converter • Undervoltage and short circuit protection Features Switching Regulator Description The R-78K-0.5 series is a switching regulator module that has been designed to offer all the advantages of a switching regulator (high efficiency, wide input range, accurate output voltage regulation) but with a low cost for production quantities. Due to the R-78K-0.5’s high efficiency of up to 96%, no heat-sink is required, and full load operation from -40 to 90°C is possible. The compact TO-220 compatible SIP3 package measures only 11.5 x 7.55 x 10.2mm, so it saves precious board space. DC/DC Converter Selection Guide Efficiency @ min. Vin @ max. Vin [%] [%] 83 66 70 75 REACH compliant Input Voltage Range [VDC] 4.5 - 36 Part Number IEC/EN62368-1 3rd Edition certified EN55032 compliant Model Numbering Output Current Output Voltage Specifications ABSOLUTE MAX RATINGS (exceeding these ratings may damage the device) Parameter Maximum Input Voltage Slew Rate (1) Case Temperature Storage Temperature Notes: Note1: At higher slew rates or hard plugging, add 27µF E-Cap between +Vin and GND, especially when Vin is >18VDC www.recom-power.co

DC/DC Converter Specifications (measured @ Ta= -40°C to +90°C, V = 24VDC, full load and after warm-up unless otherwise stated) BASIC CHARACTERISTICS Parameter Input Under Voltage Lockout (UVLO) Internal Switching Frequency Minimum Load Output Ripple and Noise Power Dissipation vs. Load 0.4 Output Load [%] continued on next page www.recom-power.com

DC/DC Converter Specifications (measured @ Ta= -40°C to +90°C, V R-78K1.8-0.5 = 24VDC, full load and after warm-up unless otherwise stated) Power Dissipation vs. Load 0.4 Output Load [%] Power Dissipation vs. Load 0.4 Output Load [%] Power Dissipation vs. Load 0.4 Output Load [%] continued on next page www.recom-power.com

DC/DC Converter Specifications (measured @ Ta= -40°C to +90°C, V R-78K5.0-0.5 = 24VDC, full load and after warm-up unless otherwise stated) Power Dissipation vs. Load 0.5 Output Load [%] Power Dissipation vs. Load 0.6 Output Load [%] Power Dissipation vs. Load 0.6 Output Load [%] continued on next page www.recom-power.com

DC/DC Converter Specifications (measured @ Ta= -40°C to +90°C, V R-78K12-0.5 = 24VDC, full load and after warm-up unless otherwise stated) Power Dissipation vs. Load 0.6 Output Load [%] Power Dissipation vs. Load 0.6 Output Load [%] REGULATIONS Parameter Output Accuracy Line Regulation low line to high line, full load Load Regulation PROTECTIONS Parameter Short Circuit Protection (SCP) Value continuous, automatic recovery Short Circuit Input Current 30mA max. continued on next page

R-78K-0.5 DC/DC Converter Specifications +Vin +Vin (measured @ Ta= -40°C to +90°C, VIN= 24VDC, full load and after warm-up unless otherwise stated) Optional Diode Protection Circuit Add a blocking diode to Vout if current can flow backwards into the output, as this can damage the converter when it is powered down. The diode can either be fitted across the device if the source is low impedance or fitted in series with the output (recommended). ENVIRONMENTAL Parameter refer to “Derating Graph” Operating Temperature Range Maximum Case Temperature Temperature Coefficient Operating Humidity...

DC/DC Converter Specifications (measured @ Ta= -40°C to +90°C, V = 24VDC, full load and after warm-up unless otherwise stated) Output Load [%] Output Load [%] Output Load [%] Output Load [%] Output Load [%] Output Load [%] continued on next page www.recom-power.com

DC/DC Converter Specifications (measured @ Ta= -40°C to +90°C, V = 24VDC, full load and after warm-up unless otherwise stated) SAFETY AND CERTIFICATIONS (PENDING) Certificate Type (Safety) Report Number Audio/Video, information and communication technology equipment - Part 1: Safety requirements Standard IEC62368-1:2018 3rd Edition RoHS 2011/65/EU + AM2015/863 Standard / Criterion with external filter refer to “EMC filtering” Electromagnetic compatibility of multimedia equipment - Emission requirements EMC filtering suggestion according to EN55032 C3 L1 GND Component List Class B C1/C2...

DC/DC Converter Specifications (measured @ Ta= -40°C to +90°C, V = 24VDC, full load and after warm-up unless otherwise stated) PACKAGING INFORMATION Parameter Packaging Dimension (LxWxH) Packaging Quantity Storage Temperature Range Storage Humidity The product information and specifications may be subject to changes even without prior written notice.The product has been designed for various applications; its suitability lies in the responsibility of each customer. The products are not authorized for use in safety-critical applications without RECOM’s explicit written consent. A...