DC/DC Converter URF48_QB-75W(F/H)R3 Series 75W isolated DC-DC converter Wide input voltage and regulated single output FEATURES Ultra-wide 4:1 input voltage range High efficiency up to 93% I/O isolation test voltage: 2250VDC Input under-voltage protection, output short circuit, over-current, over-voltage, over-temperature protection Operating ambient temperature range: -40 ~ +85 Five-sided metal shielded package EN62368 approved Patent Protection RoHS Meet UL62368, IEC62368, EN50155 standards Industry standard 1/4-Brick package and pin-out URF48_QB-75W(F/H)R3 series of isolated 75W DC-DC converter products with a 4:1 input voltage range. They feature efficiencies of up to 93%, 2250VDC input to output isolation, operating ambient temperature of -40 to +85, input under-voltage, output over-voltage, short circuit, over-temperature and over-current protection. The products meet CLASS B of CISPR32/EN55032 EMI standards by adding the recommended external components, and they are widely used in applications such as battery powered systems, industrial controls, electricity, instrumentation, railway, communication and intelligent robotics. Selection Guide Input Voltage (VDC) Certification Part No. Nominal (Range) Max. URF4805QB-75W(F/H) R3 URF4812QB-75W(F/H) R3 CE URF4815QB-75W(F/H) R3 URF4824QB-75W(F/H) R3 48 (18-75) URF4848QB-75W(F/H) R3 80 Output Voltage (VDC) Current (A) Max. Full Load Efficiency (%) Min./Typ. Capacitive Load (F) Max. 5 15 89/91 6000 12 6.25 90/92 2000 15 5 91/93 2000 24 3.13 90/92 1000 48 1.56 90/92 470 Note: Use"F"suffix is for added aluminum baseplate and "H" suffix for heat sink mounting. We recommend to choose modules with a heat sink for enhanced heat dissipation and applications with extreme temperature requirements; Exceeding the maximum input voltage may cause permanent damage. Input Specifications Item Operating Conditions Min. Typ. Max. Input Current (full load/no-load) Nominal input voltage -- 1698/50 1756/80 Reflected Ripple Current Nominal input voltage -- 30 -- -0.7 -- 90 Surge Voltage (1sec. max.) Start-up Voltage Input Under-voltage Protection -- -- 18 5VDC, 15VDC output 16 16.5 -- Others 15 15.5 -- Input Filter Ctrl* Unit mA VDC Pi filter Module on Ctrl pin open or pulled high (3.5-12VDC) Module off Ctrl pin pulled low to GND (0-1.2VDC) 2019.04.25-A/3 Page 1 of 8 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation DC/DC Converter URF48_QB-75W(F/H)R3 Series Ctrl* Input current when off -- 10 mA Max. Unit 2 Hot Plug Unavailable Note: *The Ctrl pin voltage is referenced to input GND. Output Specifications Item Operating Conditions Voltage Accuracy 0%-100% load -- 1 3 Linear Regulation Input voltage variation from low to high at full load -- 0.2 0.5 Load Regulation 0%-100% load -- 0.5 0.75 Transient Recovery Time 25% load step change Transient Response Deviation 25% load step change Temperature Coefficient Full load Ripple & Noise* 20MHz bandwidth Min. % -- 200 500 5VDC output -- 3 7.5 Others -- 3 5 -- -- 0.03 12VDC, 15VDC output -- 100 200 Others -- 150 250 110 130 160 %Vo 110 140 190 %Io Over-voltage Protection Over-current Protection Typ. Input voltage range Short-circuit Protection s % %/ mVp-p Hiccup, continuous, self-recovery Note: * The "parallel cable" method is used for ripple and noise test, please see DC-DC Converter Application Notes for specific operation. General Specifications Item Operating Conditions Min. Typ. Max. Input-output 2250 -- -- 1500 -- -- 500 -- -- 100 -- -- M -- 2200 -- pF Trim Range* 95 -- 110 Remote Sense Compensation -- -- 105 -40 -- +85 Isolation Input-case Output-case Electric Strength Test for 1 minute with a leakage current of 5mA max. Insulation Resistance Input-output resistance at 500VDC Isolation Capacitance Input-output capacitance at 100KHz/0.1V Operating Temperature Storage Temperature VDC -55 -- +125 Over-temperature Protection Max. case temperature -- 115 120 Pin Soldering Resistance Temperature Wave-soldering, 10 seconds -- -- 260 Soldering spot is 1.5mm away from case for 10 seconds -- -- 300 Storage Humidity Non-condensing 5 -- 95 Vibration Unit %Vo %RH IEC/EN61373 - Category 1, Grade B Switching Frequency PWM mode MTBF MIL-HDBK-217F@25 -- 250 -- KHz 500 -- -- K hours Note:*For URF4805QB-75W(F/H)R3 and URF4815QB-75W(F/H)R3, the Trim function satisfies the output up to 10% or the Sense function satisfies the output up to 5%, Vin needs to be higher than 20VDC. Mechanical Specifications Case Material Dimensions Weight Aluminum alloy case; Black plastic bottom, flame-retardant and heat-resistant (UL94 V-0) URF48xxQB-75WR3 61.8 x 40.2 x 12.7 mm URF48xxQB-75WFR3 62.0 x 56.0 x 14.6 mm URF48xxQB-75WHR3 61.8 x 40.2 x 27.7 mm URF48xxQB-75WR3 90.0g(Typ.) URF48xxQB-75WFR3 110.0g(Typ.) 2019.04.25-A/3 Page 2 of 8 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation DC/DC Converter URF48_QB-75W(F/H)R3 Series Weight URF48xxQB-75WHR3 Cooling method Natural convection (20FLM) 121.0g(Typ.) Electromagnetic Compatibility (EMC) Emissions Immunity CE CISPR32/EN55032 CLASS A and CLASS B (see Fig. 3 for recommended circuit) RE CISPR32/EN55032 CLASS A and CLASS B (see Fig. 3 for recommended circuit) ESD IEC/EN61000-4-2, EN50121-3-2 Contact 6KV Air 8KV perf.Criteria B RS IEC/EN61000-4-3, EN50121-3-2 10V/m perf.Criteria A EFT IEC/EN61000-4-4, EN50121-3-2 2KV(see Fig. 2 for recommended circuit) perf.Criteria A differential mode 1KV, 1.2/50us, source impedance 42 (see Fig.2 for recommended circuit) perf.Criteria B Surge EN50121-3-2 CS IEC/EN61000-4-6, EN50121-3-2 10 Vr.m.s perf.Criteria A Typical Performance Curves 2019.04.25-A/3 Page 3 of 8 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation DC/DC Converter URF48_QB-75W(F/H)R3 Series Notes (1) Product application thermal design should be referred to the recommended PCB layout and recommended heat dissipation structure, please see DC-DC Converter Application Notes for specific operation. Remote Sense Application 1. Remote Sense Connection if not used (1) If the sense function is not used for remote regulation the user must connect the +Sense to + Vo and -Sense to 0V at the DC-DC converter pins and will compensate for voltage drop across pins only. (2) The connections between Sense lines and their respective power lines must be kept as short as possible, otherwise they may be picking up noise, interference and/or causing unstable operation of the power module. 2. Remote Sense Connection used for Compensation (1) Using remote sense with long wires may cause unstable output, please contact technical support if long wires must be used. (2) PCB-tracks or cables/wires for Remote Sense must be kept as short as possible. Twisted pair or shielded wairs are suggested for remote compensation and must be kept as short as possible. (3) We recommend using adequate cross section for PCB-track layout and/or cables to connect the power supply module to the load in order to keep the voltage drop below 0.3V and to make sure the power supply's output voltage remains within the specified range. (4) Note that large wire impedance may cause oscillation of the output voltage and/or increased ripple. Consult technical support or factory for further advice of sense operation. 2019.04.25-A/3 Page 4 of 8 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation DC/DC Converter URF48_QB-75W(F/H)R3 Series Design Reference 1. Typical application (1) We recommended using the recommended circuit shown in Fig.1 during product testing and application, otherwise please ensure that at least a 220F electrolytic capacitors is connected at the input in order to ensure adequate voltage surge suppression and protection. (2) We recommended increasing the value of Cin and pay attention to the unstable input voltage if the product input side is paralleled with motor drive circuit and/or larger energy transient circuits, to ensure the stablity of input terminal and avoid repeatedly start-up problems due to input voltage lower than under-voltage protection point. (3) We recommended increasing the output capacitance with limited to the capactive load specification and/or increasing the voltage clamping circuit(such as TVS) if the output terminal is inductive device such as relay or a motor, to ensure adequate voltage surge suppression and protection. (4) Input and/or output ripple can be further reduced by appropriately increasing the input & output capacitor values Cin and Cout and/or by selecting capacitors with a low ESR (equivalent series resistance). Also make sure that the capacitance is not exceeding the specified max. capacitive load value of the product. Vout(VDC) Fuse Cin* 5 12 10A, 15 24 TVS 470F SMDJ6.0A 220F 100F 48 Fig.1 2. 220F slow blow Cout SMDJ14A SMDJ17A SMDJ28A SMDJ54A Note: *Please pay attention to the ambient temperature of the product when using an external capacitor, increase the electrolytic capacitor values to at least 1.5 times the original parameter if the ambient temperature is low(such as -25). EMC solution-recommended circuit We suggest to use the recommended circuit shown in Fig.2 during product EMC testing and application. Capacitor Recommended value Function C1 150F electrolytic C9 47F electrolytic Meets EFT and surge Fig. 2 CY1 CY2 Vin C1 C2 C3 C4 L1 C5 C6 L2 + C7 C8 C9 + +Vo Vin DC/DC 0V GND GND LOAD CY 3 CY 4 Fig. 3 2019.04.25-A/3 Page 5 of 8 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation DC/DC Converter URF48_QB-75W(F/H)R3 Series Class A components Class B components Recommended component value C1 150F electrolytic capacitor C9 47F electrolytic capacitor C1 150F electrolytic capacitor C9 47F electrolytic capacitor C2, C3, C4, C5, C6, C7, C8 2.2F ceramic capacitor L1 1.0mH common mode inductor 3. Meets conducted emission and radiated emission 1.5H inductance L2 CY3 function CY1, CY2, CY3, CY4 1nF Y1 safety capacitor Trim Function for Output Voltage Adjustment (open if unused) Vo' Vo' Calculation formula of Trim resistance: R1 V r ef R2 RT R1 R3 Trim V r ef RT R3 up: R T = aR 2 R 2 -a -R 3 a= Vref R1 Vo'-Vref down : R T = aR 1 R 1 -a -R 3 a= Vo'-Vref R2 Vref Trim R2 RT = Trim Resistor value; 0V 0V Trim up Trim down a = self-defined parameter Vo'= desired output voltage (10% max.) TRIM resistor connection (dashed line shows internal resistor network) Vout(VDC) R1(K) R2(K) R3(K) Vref(V) 5 3.036 3 10 2.5 12 11.00 2.87 15 2.5 15 14.03 2.8 15 2.5 24 24.872 2.87 15 2.5 48 53.017 2.913 15 2.5 Note: If the Trim pin is shorted with "+Vo", or its value is too low, then the output voltage Vo' would be lower than 0.95Vo, which may cause permanent damage. 4. Reflected ripple current--test circuit Lin Cin Oscilloscope + Vo DC DC 0V Note: Lin(4.7H), Cin (220F, ESR < 1.0 at 100 KHz) 5. The products do not support parallel connection of their output 6. Ensure input current meet start-up current of the products, ensuring that the product is not underpower 7. For additional information please refer to application notes on www.mornsun-power.com 2019.04.25-A/3 Page 6 of 8 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation DC/DC Converter URF48_QB-75W(F/H)R3 Series URF48xxQB-75WR3 Dimensions and Recommended Layout URF48xxQB-75WFR3 Dimensions and Recommended Layout 2019.04.25-A/3 Page 7 of 8 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation DC/DC Converter URF48_QB-75W(F/H)R3 Series URF48xxQB-75WHR3 Dimensions and Recommended Layout Note: 1. For additional information on Product Packaging please refer to www.mornsun-power.com. Packaging bag number: 58010113(URF48xxQB-75WR3), 58200069(URF48xxQB-75WFR3), 58220017(URF48xxQB-75WHR3); 2. The maximum capacitive load offered were tested at input voltage range and full load; 3. Unless otherwise specified, data in this datasheet should be tested under the conditions of Ta=25, humidity<75%RH with nominal input voltage and rated load; 4. All index testing methods in this datasheet are based on our company corporate standards; 5. We can provide product customization service, please contact our technicians directly for specific information; 6. Products are related to laws and regulations: see "Features" and "EMC"; 7. Our products shall be classified according to ISO14001 and related environmental laws and regulations, and shall be handled by qualified units. Mornsun Guangzhou Science & Technology Co., Ltd. Address: No. 5, Kehui St. 1, Kehui Development Center, Science Ave., Guangzhou Science City, Huangpu District, Guangzhou, P. R. China Tel: 86-20-38601850 Fax: 86-20-38601272 E-mail:info@mornsun.cn www.mornsun-power.com 2019.04.25-A/3 Page 8 of 8 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation