UEI30 Series www.murata-ps.com 30W Isolated Wide-Range DC-DC Converters Featuring a full 30 Watt output in 1.8 square inches of board area, the UEI series isolated DC/DC converter family offers efficient regulated DC power for printed circuit board mounting. Typical unit FEATURES PRODUCT OVERVIEW „ Small footprint DC/DC converter, ideal for high Wide range 4:1 inputs on the 0.92" x 1.92" x 0.35" con- and FPGA’s. No minimum load is required. For current applications verter are either 9 to 36 Volts DC (Q12 models) or 18 systems requiring controlled startup/shutdown, an „ 0.92" x 1.92" x 0.35" open frame package to 75 Volts DC (Q48 models), ideal for battery-pow- external switch, transistor or digital logic may be „ Wide range input voltages 9-36 and 18-75Vdc ered and telecom equipment. Fixed output voltages used to activate the remote On/Off control. „ Assembly and attachment for RoHS-6 hazardous from 3.3 VDC to 15 VDC are tightly regulated and A wealth of self-protection features avoid both may be trimmed within ±10% of nominal output. converter and external circuit problems. These substance compliance Applications include small instruments, computer- include input undervoltage lockout and overtempera- „ Isolation up to 2250 VDC (basic), Q48 models based systems, data communications equipment, ture shutdown. The outputs current limit using the „ Up to 30W total output power with remote sensor systems, vehicle and portable “hiccup” autorestart technique and the outputs may overtemperature shutdown electronics. be short-circuited indefinitely. Additional features „ High efficiency synchronous rectifier forward The UEI 30W Series includes full magnetic and include output overvoltage and reverse conduction topology optical isolation up to 2250 Volts DC (basic insula- elimination. „ Stable no-load operation with no required tion), Q48 models. For connection to digital systems, The synchronous rectifier forward topology offers external components the outputs offer fast settling to current step loads high efficiency for minimal heat buildup and “no „ –40 to +85°C temperature range; see derating and tolerance of higher capacitive loads. Excellent fan” operation. ripple and noise specifications assure compatibility „ Certified to UL60950-1, CSA-C22.2 No. 234 to circuits using CPU’s, ASIC’s, programmable logic safety approvals, and CE marking on 48V input only SIMPLIFIED SCHEMATIC „ Extensive self-protection shut down features „ RoHS-6 hazardous substance compliant +VOUT +VIN GATE DRIVE –VIN –VOUT ISOLATION BARRIER On/Off Control Control TRIM OPTO Reference, trim & ISOLATION Error Amplifier Typical topology is shown. For full details go to www.murata-ps.com/rohs (48V input only) www.murata-ps.com/support MDC_UEI Series 30W.B05 Page 1 of 18

UEI30 Series 30W Isolated Wide-Range DC-DC Converters PERFORMANCE SPECIFICATIONS SUMMARY AND ORDERING GUIDE Output Input Open Frame Power R/N (mVp-p) Regulation (Max.) Efficiency Package, C80 Vout Iout NVoImN . Range noI ilno,a d Iin, full (V) (A) (W) Typ. Max. Line Load (V) load (A) Min. Typ. Case Pinout  (V) (mA) Part Number UEI30-033-Q12P-C 3.3 9 29.7 25 35 ±0.2% ±0.25% 24 9-36 130 1.39 87.3% 89% C80 P21 UEI30-033-Q48N-C 3.3 9 29.7 50 75 ±0.2% ±0.25% 48 18-75 50 0.69 87% 89.5% C80 P21 UEI30-050-Q12P-C 5 6 30 35 50 ±0.2% ±0.2% 24 9-36 130 1.4 88% 89.5% C80 P21 UEI30-050-Q48N-C 5 6 30 25 50 ±0.1% ±0.2% 48 18-75 130 0.7 87% 88.8% C80 P21 UEI30-120-Q12P-C 12 2.5 30 60 120 ±0.2% ±0.1% 24 9-36 75 1.4 87.5% 89% C80 P21 UEI30-120-Q48N-C 12 2.5 30 30 60 ±0.2% ±0.1% 48 18-75 40 0.7 87.5% 89% C80 P21 UEI30-150-Q12P-C 15 2 30 40 65 ±0.2% ±0.1% 24 9-36 95 1.4 87.5% 89% C80 P21 UEI30-150-Q48N-C 15 2 30 50 100 ±0.2% ±0.1% 48 18-75 50 0.7 87.5% 89.5% C80 P21  Please refer to the part number structure for additional options and complete ordering part numbers. Output capacitors are 1 µF ceramic in parallel with 10 µF electrolytic. Input cap is 22 µF, low ESR.  All specifications are at nominal line voltage and full load, +25°C. unless otherwise noted. See detailed These I/O caps are necessary for our test equipment and may not be needed for your application. specifications. * TO BE DISCONTINUED * NOTE: the following models are TO BE DISCONTINUED: UEI30-033-Q12N-C UEI30-033-Q12PL2-C UEI30-033-Q48P-C UEI30-150-Q48P-C UEI30-033-Q12P-C UEI30-033-Q48N-C UEI30-150-Q48N-C PART NUMBER STRUCTURE UEI30 - 050- Q48 N H Lx - C Nominal Output Voltage RoHS-6 hazardous substance compliance (does not claim EU RoHS exemption 7b–lead in solder) In tenths of a volt Input Voltage Range: Pin Length Option Q12 = 9-36V Blank = Std. pin length 0.25˝ (6.3mm) L1 = 0.110˝ (2.79mm)* Q48 = 18-75V L2 = 0.145˝ (3.68mm)* Conformal Coating Option *Special quantity order is required; Blank = No coating, standard no sample quantities available. H = Coating added, optional (built to order; contact Murata Power Solutions for MOQ and lead times.)* On/Off Control Logic: P = Positive N = Negative Note: Positive “P” logic is standard for Q12 models and optional special order Some model number combinations for Q48 models. Negative “N” logic is standard for Q48 models and may not be available. Please contact optional special order for Q12 models. Murata Power Solutions. Special Customer Configuration part numbers: 1) UEI30-033-Q12PH-31328 (3.3Vout @ 30W, Positive Logic, Confor- mal Coating, Hipot Tested to 2,000Vrms) 2) UEI30-050-Q12PH-31329 (5Vout @ 30W, Positive Logic, Conformal Coating, Hipot Tested to 2,000Vrms) 3) UEI30-050-Q12PL1-C-NI (5Vout @ 30W, Positive Logic, 0.110” Pin Length, Control loop changes for large capacitive load) www.murata-ps.com/support * Last time buy date is 3/31/2021. Please click here to view product discontinuance notice MDC_UEI Series 30W.B05 Page 2 of 18

UEI30 Series 30W Isolated Wide-Range DC-DC Converters FUNCTIONAL SPECIFICATIONS INPUT CHARACTERISTICS Start-up vUonldtaegr-e Re(bflaecckte) d Input Current ended w Fuse Internal Reverse Remote On/Off Control Model Family threshold Sdohwutn- CRuirprepnlet 2 ITnsriraeunns-th OCSuihrtcopurutitt LLionwe StMaonddeby RecommFast-Blo IFTniylptpeuert PrPootleacrtitioy nCOunr/rOefnft Positive Logic Negative Logic V V mA pk-pk A2sec mA A mA A mA “P” model suffix “N” model suffix UEI30-033-Q12P-C 9.5 8.5 3.75 6 UEI30-033-Q48N-C 17.3 16.0* 1.89 6 1 1 UEI30-050-Q12P-C 9.5 8.0 3.75 6 OFF=Gnd pin or OFF=open pin 50 None, –0.7 to +1.2V or +10 to +15V UEI30-050-Q48N-C 17.0 16.2 1.88 6 install 30 0.05 L-C max. ON=open max. ON=Gnd pin UEI30-120-Q12P-C 9.5 8.3 3.75 3 6 external 3.5 pin or +10 to or –0.7 to fuse UEI30-120-Q48N-C 17.0 16.5 1.85 4 +15V max. +1.2V max. UEI30-150-Q12P-C 9.5 8.3 80 3.72 1 6 1 UEI30-150-Q48N-C 16.9 16.3 50 1.83 4 *Specified at half load OUTPUT CHARACTERISTICS Model Family 5%A0c %ocVfuo LuVraton cao ymd A%dRj uoasfn tVmgneeomn t %TCe mooefp fVefiorcuaitet un/ºrtCe CLaopwac rEietSsivRise t <µLiv0oFe.a0 ld2oiΩandg M Maxa,x . aHfitceOcrpv ufreaporu tvaelVotuc ltrttoieao-mgnseot av ratl Minimum loading OV protection method Ripple/Noise(20 MHz 8bandwidth) Line/Load Regulation Efficiency UEI30-033-Q12P-C 2 5.0 UEI30-033-Q48N-C 5.0 UEI30-050-Q12P-C 7.0 UEI30-050-Q48N-C 7.3 Magnetic ±10 ±0.02 2,000 No See ordering guide UEI30-120-Q12P-C 1 15.5 feedback UEI30-120-Q48N-C 14.1 UEI30-150-Q12P-C 18.5 UEI30-150-Q48N-C 24 Absolute Maximum Ratings ABSOLUTE MAXIMUM RATINGS Absolute maximums are stress ratings. Exposure of devices to greater Volts, max. continuous 0-36 VDC to rated specifications Q12 models than any of these conditions may adversely affect long-term reliability. Volts, transient, 100 mSec 50 VDC, no damage Input Voltage Volts, max. continuous 0-75 VDC to rated specifications Proper operation under conditions other than those listed in the Perfor- Q48 models Volts, transient, 100 mSec 100 VDC, no damage mance/Functional Specifications Table is not implied nor recommended. On/Off control, referred to –Vin -0.7 V. min to +15V max. Maximum Ratings Notes Input Reverse Polarity Protection None, install external fuse The transient specifications indicate that sample lots were success- Output Overvoltage Vout nom. +20% max. fully tested for 100 mS at the transient stress voltage and were not Current-limited. Devices can damaged. As a practical matter in your application, it is often difficult to withstand sustained short circuit Output Current without damage. The outputs are determine how long an input overvoltage was applied. Therefore, do not not intended to accept appreciable exceed the continuous voltage rating. reverse current. Device includes electronic overtem- Overtemperature Protection perature shutdown protection under normal operation. Storage Temperature -55 to +125° C. Lead Temperature See soldering specifications www.murata-ps.com/support MDC_UEI Series 30W.B05 Page 3 of 18

UEI30 Series 30W Isolated Wide-Range DC-DC Converters ISOLATION CHARACTERISTICS DYNAMIC CHARACTERISTICS Start-up Time Input to Isolation Dynamic Load Model Family Output. Resistance CaIspoalcaittiaonnc e InsulaRtaiotinn gSafety Model Family (5R0e-s7p5o-n5s0e% Vrieng tuol aVtoeudt Remtoot eV oOunt /Off FSrweqitucehnincgy Min Min load step) (Max.) regulated (Max.) VDC MΩ pF μsec mSec mSec KHz UEI30-033-Q12P-C 2000 1000 UEI30-033-Q12P-C 120 to 2% 275 UEI30-033-Q48N-C 2250 1000 UEI30-033-Q48N-C 180 to 2% 280 UEI30-050-Q12P-C 2000 1000 UEI30-050-Q12P-C 80 to 2% 275 UEI30-050-Q48N-C 2250 1000 UEI30-050-Q48N-C 100 to 1% 275 10 Basic 50 50 UEI30-120-Q12P-C 2000 1500 UEI30-120-Q12P-C 200 to 1% 275 UEI30-120-Q48N-C 2250 1500 UEI30-120-Q48N-C 150 to 1% 275 UEI30-150-Q12P-C 2000 1500 UEI30-150-Q12P-C 150 to 1% 275 UEI30-150-Q48N-C 2250 2000 UEI30-150-Q48N-C 150 to 1% 275 MISCELLANEOUS CHARACTERISTICS Output Current Output Output Relative Limit Inception Output Short Storage Thermal Short Short Output Humidity, Model Family 98% of Vout, Circuit Circuit C(oiructupiut tD suhroarttieodn Pre-biased OperatinRga Tnegmeperature temrpaenrgaeture psrhoutetdcotiwonn/ non- after warmup Protection Current setup condensing to ground) Method A A ºC ºC ºC UEI30-033-Q12P-C 11.5 0.3 max. UEI30-033-Q48N-C 11.2 0.3 max. UEI30-050-Q12P-C 7.9 Current 3.0 limiting, Monotonic –40 to +85ºC; UEI30-050-Q48N-C 7.4 0.3 max. To +85ºC/ hiccup Continuous (external with Derating –55 to 125ºC 115 UEI30-120-Q12P-C 4.1 auto 1.5 Vout < Vset) (see Notes) 85% RH UEI30-120-Q48N-C 3.65 restart 0.75 UEI30-150-Q12P-C 3.0 0.5 UEI30-150-Q48N-C 3.25 0.1 max. Specification Notes: performance. Be sure to thoroughly test your system under full load with all components installed. (1) All models are tested and specified with external 1 µF and 10 µF parallel output capacitors and a 22 µF (9) All models are fully operational and meet published specifications, including “cold start” at –40°C. (10) external input capacitor. All capacitors are low ESR types. These capacitors are necessary to accommodate Regulation specifications describe the deviation as the line input voltage or output load current is varied our test equipment and may not be required to achieve specified performance in your applications. All from a nominal midpoint value to either extreme. models are stable and regulate within spec under no-load conditions. (11) The output overvoltage protection is automatic recovery. The overvoltage may occur either from All specifications are typical unless noted. General conditions for Specifications are +25 deg.C, internal failure or from an external forcing voltage as in a shared power system. Vin=nominal, Vout=nominal, full load. Adequate airflow must be supplied for extended testing under (12) Output overvoltage and short circuit protection is non-latching. When the overvoltage fault is removed, power. the converter will immediately recover. After an output overcurrent or short circuit, “hiccup” operation (2) Input Back Ripple Current is tested and specified over a 5 Hz to 20 MHz bandwidth. Input filtering is repeatedly attempts to restart the converter with a brief, full-current output. If the overcurrent condition Cin=33 µF, 100V, Cbus=220 µF, 100V, Lbus=12 µH. still exists, the restart current will be removed and then tried again. This short current pulse prevents (3) Note that Maximum Power Derating curves indicate an average current at nominal input voltage. At overheating and damaging the converter. Once the fault is removed, the converter immediately resumes higher temperatures and/or lower airflow, the DC/DC converter will tolerate brief full current outputs if the normal operation. total RMS current over time does not exceed the Derating curve. All Derating curves are presented at sea (13) Do not exceed maximum power specifications when adjusting the output trim. level altitude. Be aware of reduced power dissipation with increasing density altitude. (14) At zero output current, the output may contain low frequency components which exceed the ripple (4) Refer to page 10 for MTBF values. specification. The output may be operated indefinitely with no load. (5) The On/Off Control is normally selected by a switch or an open collector or open drain transistor. But it (15) If reverse polarity is accidentally applied to the input, to ensure reverse input protection with full may also be driven with external logic or by applying appropriate external voltages which are referenced to output load, always connect an external input fuse in series with the +Vin input. Use approximately twice Input Common and do not exceed the On/Off voltage specifications. the full input current rating with nominal input voltage. (6) Output current limiting begins when the output voltage degrades approximately 2% from the selected CAUTION: This product is not internally fused. To comply with safety agency certifications and to avoid setting. injury to personnel or equipment, the user must connect an external fast-blow fuse to the input terminals. (7) The outputs are not intended to sink appreciable reverse current. See fuse information. (8) Output noise may be further reduced by adding an external filter. Low voltage logic circuits may have a small voltage margin between logic ZERO and logic ONE, requiring noise suppression. Use only as much output filtering as needed to achieve your noise requirements. Excessive output capacitance can retard transient response or possibly cause instability. Low ESR ceramic capacitors may degrade dynamic www.murata-ps.com/support MDC_UEI Series 30W.B05 Page 4 of 18

UEI30 Series 30W Isolated Wide-Range DC-DC Converters PERFORMANCE DATA UEI30-033-Q12 Efficiency vs. Line Voltage and Load Current @ 25°C Maximum Current Temperature Derating @Sea Level (Vin = 12V, airflow is from input to output) 90 9 8.8 Natural convection 85 8.6 0.5 m/s (100 LFM) 1.0 m/s (200 LFM) 8.4 1.5 m/s (300 LFM) %) 80 Vin = 36 V mps) 8.2 2.0 m/s (400 LFM) Efficiency ( 7705 VVViiinnn === 2914 2V VV Output Current (A 777...8468 65 7.2 7 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 60 Ambient Temperature (ºC) 0 1 2 3 4 5 6 7 8 9 Load Current (Amps) UEI30-033-Q48 Efficiency vs. Line Voltage and Load Current @ 25°C Maximum Current Temperature Derating @Sea Level (Vin = 24V, airflow is from input to output) 100 9.1 90 9 80 mps) 8.9 N0.a5t umra/ls c(o1n0v0e LcFtiMon) Efficiency (%) 567000 VVVViiiinnnn ==== 47128584 VVVV Output Current (A 888...678 1.0 m/s (200 LFM) 40 8.5 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 30 Ambient Temperature (ºC) 20 0 1 2 3 4 5 6 7 8 9 Load Current (Amps) UEI30-033-Q48 Maximum Current Temperature Derating @Sea Level (Vin = 48V, airflow is from input to output) 9.1 9 mps) 8.9 N0.a5t umra/ls c(o1n0v0e LcFtiMon) Output Current (A 88..78 1.0 m/s (200 LFM) 8.6 8.5 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 Ambient Temperature (ºC) www.murata-ps.com/support MDC_UEI Series 30W.B05 Page 5 of 18

UEI30 Series 30W Isolated Wide-Range DC-DC Converters PERFORMANCE DATA UEI30-050-Q12 Efficiency vs. Line Voltage and Load Current @ 25°C Maximum Current Temperature Derating @Sea Level (Vin = 12 or 24V, airflow is from input to output) 100 6.10 90 6.00 80 mps) 5.90 Natural convection Efficiency (%) 567000 VVVViiiinnnn ==== 23114602 VVVV Output Current (A 555...678000 40 5.50 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 30 Ambient Temperature (ºC) 20 0 1.00 2.00 3.00 4.00 5.00 6.00 Load Current (Amps) UEI30-050-Q48 Efficiency vs. Line Voltage and Load Current @ 25°C Maximum Current Temperature Derating @Sea Level (Vin = 18V, transverse airflow) 100 90 6.1 80 6.0 Efficiency (%) 567000 VVVViiiinnnn ==== 47128584 VVVV Output Current (Amps) 555...789 N011...a505t ummmra///lsss c(((o123n000v000e LLLcFFFtiMMMon))) 40 5.6 30 5.5 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 Ambient Temperature (ºC) 20 0 1.00 2.00 3.00 4.00 5.00 6.00 Load Current (Amps) UEI30-050-Q48 Maximum Current Temperature Derating @Sea Level Maximum Current Temperature Derating @Sea Level (Vin = 24V, transverse airflow) (Vin = 48V, transverse airflow) 6.1 6.1 Output Current (Amps) 55556.....67890 Natural convection Output Current (Amps) 5556....7890 N0.a5t umra/ls c(o1n0v0e LcFtiMon) 5.6 5.5 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 5.5 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 Ambient Temperature (ºC) Ambient Temperature (ºC) www.murata-ps.com/support MDC_UEI Series 30W.B05 Page 6 of 18

UEI30 Series 30W Isolated Wide-Range DC-DC Converters PERFORMANCE DATA UEI30-120-Q12 Efficiency vs. Line Voltage and Load Current @ 25°C Power Dissipation vs. Load Current @ 25°C 4.5 90 Vin = 36 V 88 4.0 Vin = 24 V Vin = 12 V 8846 Watts) 3.5 Vin = 9 V ficiency (%) 77886802 VVVViiiinnnn ==== 23 1 4692 VVVV Power Dissipation ( 223...050 Ef 74 1.5 72 1.0 70 0.5 0.7 0.9 1.1 1.3 1.5 1.7 1.9 2.1 2.3 2.5 68 Load Current (Amps) 0.5 0.7 0.9 1.1 1.3 1.5 1.7 1.9 2.1 2.3 2.5 Load Current (Amps) UEI30-120-Q12 Maximum Current Temperature Derating @Sea Level Maximum Current Temperature Derating @Sea Level (Vin = 9-24V, transverse airflow) (Vin = 36V, transverse airflow) 2.55 2.55 2.50 2.50 0.5 m/s (100 LFM) 100 LFM 1.0 m/s (200 LFM) 2.45 Output Current (Amps) 22..4405 Output Current (Amps)22..3450 2.30 2.35 2.25 2.20 2.30 20 25 30 35 40 45 50 55 60 65 70 75 80 85 20 25 30 35 40 45 50 55 60 65 70 75 80 85 Ambient Temperature (ºC) Ambient Temperature (ºC) www.murata-ps.com/support MDC_UEI Series 30W.B05 Page 7 of 18

UEI30 Series 30W Isolated Wide-Range DC-DC Converters PERFORMANCE DATA UEI30-120-Q48 Efficiency vs. Line Voltage and Load Current @ 25°C Power Dissipation vs. Load Current @ 25°C Vin = 75V 90 4.5 Vin = 48V 88 Vin = 24V 4.0 8846 Watts) 3.5 Vin = 18V Efficiency (%) 77886802 VVVViiiinnnn ==== 47128584 VVVV Power Dissipation ( 223...050 74 1.5 72 1.0 70 0.5 0.7 0.9 1.1 1.3 1.5 1.7 1.9 2.1 2.3 2.5 68 Load Current (Amps) 0.5 0.7 0.9 1.1 1.3 1.5 1.7 1.9 2.1 2.3 2.5 Load Current (Amps) UEI30-120-Q48 Maximum Current Temperature Derating @Sea Level Maximum Current Temperature Derating @Sea Level (Vin = 18-48V, transverse airflow) (Vin = 75V, transverse airflow) 3.00 2.60 2.75 2.55 2.50 100 LFM 2.50 0.5 m/s (100 LFM) mps) 2.25 Amps) 2.45 1.0 m/s (200 LFM) Output Current (A 12..7050 Output Current ( 22..3450 2.30 1.50 2.25 1.25 2.20 1.00 20 25 30 35 40 45 50 55 60 65 70 75 80 85 20 25 30 35 40 45 50 55 60 65 70 75 80 85 Ambient Temperature (ºC) Ambient Temperature (ºC) www.murata-ps.com/support MDC_UEI Series 30W.B05 Page 8 of 18

UEI30 Series 30W Isolated Wide-Range DC-DC Converters PERFORMANCE DATA UEI30-150-Q12 Efficiency vs. Line Voltage and Load Current @ 25°C Power Dissipation vs. Load Current @ 25°C 4.5 90 88 4.0 86 84 Watts) 3.5 Efficiency (%) 77886802 VVVViiiinnnn ==== 23 1 4692 VVVV Power Dissipation ( 223...050 VViinn == 2346 VV 74 1.5 Vin = 12 V 72 Vin = 9 V 70 1.0 0.4 0.5 0.7 0.9 1.0 1.2 1.4 1.5 1.7 1.8 2.0 68 0.4 0.5 0.7 0.9 1.0 1.2 1.4 1.5 1.7 1.8 2.0 Load Current (Amps) Load Current (Amps) UEI30-150-Q12 Maximum Current Temperature Derating @Sea Level Maximum Current Temperature Derating @Sea Level (Vin = 9-24V, transverse airflow) (Vin = 36V, transverse airflow) 2.05 2.05 2.00 2.00 100 LFM 0.5 m/s (100 LFM) Output Current (Amps) 11..9905 Output Current (Amps) 11..9905 11..05 mm//ss ((230000 LLFFMM)) 1.85 1.85 1.80 1.80 20 25 30 35 40 45 50 55 60 65 70 75 80 85 20 25 30 35 40 45 50 55 60 65 70 75 80 85 Ambient Temperature (ºC) Ambient Temperature (ºC) UEI30-150-Q12 Maximum Current Temperature Derating @Sea Level (Natural convection) 2.5 2 ps) Am 1.5 nt ( Vin = 12 V urre Vin = 24 V C put 1 ut O 0.5 0 30 35 40 45 50 55 60 65 70 75 80 85 Ambient Temperature (ºC) www.murata-ps.com/support MDC_UEI Series 30W.B05 Page 9 of 18

UEI30 Series 30W Isolated Wide-Range DC-DC Converters PERFORMANCE DATA UEI30-150-Q48 Efficiency vs. Line Voltage and Load Current @ 25°C Power Dissipation vs. Load Current @ 25°C 92 5.0 90 4.5 88 86 Watts) 34..50 VViinn == 4785VV Efficiency (%) 78888024 VVViiinnn === 472854 VVV Power Dissipation ( 223...050 VViinn == 2148VV Vin = 18 V 1.5 76 74 1.00.7 0.8 1.0 1.1 1.2 1.3 1.5 1.6 1.7 1.9 2.0 72 Load Current (Amps) 0.7 0.8 1.0 1.1 1.2 1.3 1.5 1.6 1.7 1.9 2.0 Load Current (Amps) UEI30-150-Q48 Maximum Current Temperature Derating @Sea Level Maximum Current Temperature Derating @Sea Level (Vin = 18-48V, transverse airflow) (Vin = 75V, transverse airflow) 2.2 2.2 2.0 Natural Convection 2.0 0.5 m/s (100 LFM) 1.0 m/s (200 LFM) 1.5 m/s (300 LFM) mps) 1.8 Amps) 1.8 Output Current (A 11..46 Output Current ( 11..46 1.2 1.2 1.0 1.0 20 25 30 35 40 45 50 55 60 65 70 75 80 85 20 25 30 35 40 45 50 55 60 65 70 75 80 85 Ambient Temperature (ºC) Ambient Temperature (ºC) www.murata-ps.com/support MDC_UEI Series 30W.B05 Page 10 of 18

UEI30 Series 30W Isolated Wide-Range DC-DC Converters MECHANICAL SPECIFICATIONS TOP VIEW 1.92 (48.8) PIN #1 Dimensions are in inches (mm shown for ref. only). Third Angle Projection 0.92 (23.4) Tolerances (unless otherwise specified): .XX ± 0.02 (0.5) .XXX ± 0.010 (0.25) Angles ± 2˚ SIDE VIEW Components are shown for reference only. 0.35 (8.9) 0.25 (6.4) MOUNTING PLANE 0.040 0.002 PIN WITH 0.071 0.002 SHOULDER BOTTOM VIEW 6X AT PINS 1-6 #6 1.800 (45.72) #3 CL 0.900 REF END VIEW (22.86) #5 #2 0.400 (10.16) .0300 (7.62) CL 0.100 (2.54) .0400 0.300 (7.62) (10.16) CL #1 #4 UEI30 Open Frame 30W Package C80 PHYSICAL CHARACTERISTICS INPUT/OUTPUT CONNECTIONS Copper alloy with gold plate over nickel Pin Function P21 Pin Function P21 Pin material underplate 1 + Vin 4 + Vout Pin diameter 0.04" (1.016mm) 2 - Vin 5 - Vout 3 Remote On/Off* 6 Trim Pin Finish Gold plate Weight 0.53 oz (15g) * The Remote On/Off can be provided with either positive (P suffix) or negative (N suffix) logic. Electromagnetic interference EN55022/CISPR22 (requires external filter) Flammability Rating UL 94V-0 Designed to meet IEC/EN/UL/cUL 60950-1, Safety CSA-C22.2 No. 60950-1 www.murata-ps.com/support MDC_UEI Series 30W.B05 Page 11 of 18

UEI30 Series 30W Isolated Wide-Range DC-DC Converters SHIPPING TRAYS AND BOXES Anti-static foam Label Label For 1–42 pc quantity For 43–84 pc quantity SHIPPING TRAY UEI30 modules are supplied in a 21-piece (3-by-7) shipping tray. The tray is an anti-static closed-cell polyethylene foam. Dimensions are shown below. 9.920 (252) +0.000 0.910 (23.1) TYP -0.062 0.455 (11.6) TYP 0.735 (18.7) 9.920 (252) +0.000 -0.062 0.625 (15.9) TYP 2.400 (61) TYP Dimensions in inches (mm) 0.25 R TYP 1.300 (33.0) TYP 0.25 CHAMFER TYP (4-PL) 7.800 1.06 (198.1) (26.9) www.murata-ps.com/support MDC_UEI Series 30W.B05 Page 12 of 18

UEI30 Series 30W Isolated Wide-Range DC-DC Converters must accept high speed switching currents. TECHNICAL NOTES Input Fusing Because of the switching nature of DC/DC converters, the input of these con- Certain applications and/or safety agencies may require fuses at the inputs of verters must be driven from a source with both low AC impedance and adequate power conversion components. Fuses should also be used when there is the pos- DC input regulation. Performance will degrade with increasing input inductance. sibility of sustained input voltage reversal which is not current-limited. For greatest Excessive input inductance may inhibit operation. The DC input regulation specifies safety, we recommend a fast blow fuse installed in the ungrounded input supply that the input voltage, once operating, must never degrade below the Shut-Down line. Threshold under all load conditions. Be sure to use adequate trace sizes and mount components close to the converter. The installer must observe all relevant safety standards and regulations. For safety agency approvals, install the converter in compliance with the end-user I/O Filtering, Input Ripple Current and Output Noise safety standard. All models in this converter series are tested and specified for input reflected ripple current and output noise using designated external input/output components, Input Reverse-Polarity Protection circuits and layout as shown in the figures below. External input capacitors (Cin If the input voltage polarity is reversed, an internal diode will become forward in the figure) serve primarily as energy storage elements, minimizing line voltage biased and likely draw excessive current from the power source. If this source is variations caused by transient IR drops in the input conductors. Users should select not current-limited or the circuit appropriately fused, it could cause permanent input capacitors for bulk capacitance (at appropriate frequencies), low ESR and damage to the converter. high RMS ripple current ratings. In the figure below, the Cbus and Lbus components Input Under-Voltage Shutdown and Start-Up Threshold simulate a typical DC voltage bus. Your specific system configuration may require Under normal start-up conditions, converters will not begin to regulate properly additional considerations. Please note that the values of Cin, Lbus and Cbus will vary according to the specific converter model. until the rising input voltage exceeds and remains at the Start-Up Threshold Volt- age (see Specifications). Once operating, converters will not turn off until the input In critical applications, output ripple and noise (also referred to as periodic and voltage drops below the Under-Voltage Shutdown Limit. Subsequent restart will not random deviations or PARD) may be reduced by adding filter elements such as occur until the input voltage rises again above the Start-Up Threshold. This built-in hysteresis prevents any unstable on/off operation at a single input voltage. TO OSCILLOSCOPE CURRENT Users should be aware however of input sources near the Under-Voltage Shut- PROBE 1 down whose voltage decays as input current is consumed (such as capacitor inputs), +VIN the converter shuts off and then restarts as the external capacitor recharges. Such + LBUS situations could oscillate. To prevent this, make sure the operating input voltage is VIN +– CBUS CIN well above the UV Shutdown voltage AT ALL TIMES. – 2 Start-Up Delay −VIN Assuming that the output current is set at the rated maximum, the Vin to Vout Start-Up CIN = 33µF, ESR < 700mΩ @ 100kHz Delay (see Specifications) is the time interval between the point when the rising input CBUS = 220µF, ESR < 100mΩ @ 100kHz voltage crosses the Start-Up Threshold and the fully loaded regulated output voltage LBUS = 12µH enters and remains within its specified regulation band. Actual measured times will vary Figure 2. Measuring Input Ripple Current with input source impedance, external input capacitance, input voltage slew rate and final value of the input voltage as it appears at the converter. These converters include a soft start circuit to moderate the duty cycle of the PWM controller at power up, thereby limiting the input inrush current. The On/Off Remote Control interval from inception to Vout regulated assumes +VOUT that the converter already has its input voltage stabilized above the Start-Up Threshold before the On command. The interval is measured from the On com- C1 C2 SCOPE RLOAD mand until the output enters and remains within its specified accuracy band. The specification assumes that the output is fully loaded at maximum rated current. −VOUT Input Source Impedance These converters will operate to specifications without external components, assuming that the source voltage has very low impedance and reasonable input C1 = 1µF voltage regulation. Since real-world voltage sources have finite impedance, perfor- C2 = 10µF LOW ES LOAD 2-3 INCHES (51-76mm) FROM MODULE mance is improved by adding external filter components. Sometimes only a small ceramic capacitor is sufficient. Since it is difficult to totally characterize all applica- Figure 3. Measuring Output Ripple and Noise (PARD) tions, some experimentation may be needed. Note that external input capacitors www.murata-ps.com/support MDC_UEI Series 30W.B05 Page 13 of 18

UEI30 Series 30W Isolated Wide-Range DC-DC Converters multiple external capacitors. Be sure to calculate component temperature rise from Output Overvoltage Protection (OVP) reflected AC current dissipated inside capacitor ESR. This converter monitors its output voltage for an over-voltage condition using an on-board electronic comparator. The signal is optically coupled to the primary side Floating Outputs PWM controller. If the output exceeds OVP limits, the sensing circuit will power Since these are isolated DC/DC converters, their outputs are “floating” with respect down the unit, and the output voltage will decrease. After a time-out period, the to their input. The essential feature of such isolation is ideal ZERO CURRENT FLOW PWM will automatically attempt to restart, causing the output voltage to ramp up between input and output. Real-world converters however do exhibit tiny leakage to its rated value. It is not necessary to power down and reset the converter for the currents between input and output (see Specifications). These leakages consist of this automatic OVP-recovery restart. both an AC stray capacitance coupling component and a DC leakage resistance. When using the isolation feature, do not allow the isolation voltage to exceed If the fault condition persists and the output voltage climbs to excessive levels, specifications. Otherwise the converter may be damaged. Designers will normally the OVP circuitry will initiate another shutdown cycle. This on/off cycling is referred use the negative output (-Output) as the ground return of the load circuit. You to as “hiccup” mode. can however use the positive output (+Output) as the ground return to effectively Output Fusing reverse the output polarity. The converter is extensively protected against current, voltage and temperature Minimum Output Loading Requirements extremes. However, your application circuit may need additional protection. In the These converters employ a synchronous rectifier design topology. All models regulate extremely unlikely event of output circuit failure, excessive voltage could be applied to within specification and are stable under no load to full load conditions. Operation your circuit. Consider using an appropriate external protection. under no load might however slightly increase output ripple and noise. Output Current Limiting Thermal Shutdown As soon as the output current increases to approximately its overcurrent limit, the DC/ To protect against thermal over-stress, these converters include thermal shutdown DC converter will enter a current-limiting mode. The output voltage will decrease pro- circuitry. If environmental conditions cause the temperature of the DC/DC’s to portionally with increases in output current, thereby maintaining a somewhat constant rise above the Operating Temperature Range up to the shutdown temperature, power output. This is commonly referred to as power limiting. an on-board electronic temperature sensor will power down the unit. When the Current limiting inception is defined as the point at which full power falls below temperature decreases below the turn-on threshold, the converter will automati- the rated tolerance. See the Performance/Functional Specifications. Note particu- cally restart. There is a small amount of hysteresis to prevent rapid on/off cycling. larly that the output current may briefly rise above its rated value. This enhances CAUTION: If you operate too close to the thermal limits, the converter may shut reliability and continued operation of your application. If the output current is too down suddenly without warning. Be sure to thoroughly test your application to high, the converter will enter the short circuit condition. avoid unplanned thermal shutdown. Output Short Circuit Condition Temperature Derating Curves When a converter is in current-limit mode, the output voltage will drop as the The graphs in this data sheet illustrate typical operation under a variety of conditions. output current demand increases. If the output voltage drops too low, the magneti- The Derating curves show the maximum continuous ambient air temperature and cally coupled voltage used to develop PWM bias voltage will also drop, thereby decreasing maximum output current which is acceptable under increasing forced airflow shutting down the PWM controller. Following a time-out period, the PWM will measured in Linear Feet per Minute (“LFM”). Note that these are AVERAGE measure- restart, causing the output voltage to begin rising to its appropriate value. If the ments. The converter will accept brief increases in temperature and/or current or short-circuit condition persists, another shutdown cycle will initiate. This on/off reduced airflow as long as the average is not exceeded. cycling is called “hiccup mode.” The hiccup cycling reduces the average output Note that the temperatures are of the ambient airflow, not the converter itself current, thereby preventing excessive internal temperatures. which is obviously running at higher temperature than the outside air. Also note Trimming the Output Voltage that “natural convection” is defined as very flow rates which are not using fan- The Trim input to the converter allows the user to adjust the output voltage over the forced airflow. Depending on the application, “natural convection” is usually about rated trim range (please refer to the Specifications). In the trim equations and circuit 30-65 LFM but is not equal to still air (0 LFM). diagrams that follow, trim adjustments use either a trimpot or a single fixed resistor Murata Power Solutions makes Characterization measurements in a closed connected between the Trim input and either the +Vout or –Vout terminals. (On cycle wind tunnel with calibrated airflow. We use both thermocouples and an some converters, an external user-supplied precision DC voltage may also be used infrared camera system to observe thermal performance. As a practical matter, it is for trimming). Trimming resistors should have a low temperature coefficient (±100 quite difficult to insert an anemometer to precisely measure airflow in most appli- ppm/deg.C or less) and be mounted close to the converter. Keep leads short. If the cations. Sometimes it is possible to estimate the effective airflow if you thoroughly trim function is not used, leave the trim unconnected. With no trim, the converter will understand the enclosure geometry, entry/exit orifice areas and the fan flowrate exhibit its specified output voltage accuracy. specifications. There are two CAUTIONs to observe for the Trim input: CAUTION: If you exceed these Derating guidelines, the converter may have an CAUTION: To avoid unplanned power down cycles, do not exceed EITHER the unplanned Over Temperature shut down. Also, these graphs are all collected near maximum output voltage OR the maximum output power when setting the trim. Be Sea Level altitude. Be sure to reduce the derating for higher altitude. particularly careful with a trimpot. If the output voltage is excessive, the OVP circuit www.murata-ps.com/support MDC_UEI Series 30W.B05 Page 14 of 18

UEI30 Series 30W Isolated Wide-Range DC-DC Converters may inadvertantly shut down the converter. If the maximum power is exceeded, Remote On/Off Control the converter may enter current limiting. If the power is exceeded for an extended On the input side, a remote On/Off Control can be specified with either positive or period, the converter may overheat and encounter overtemperature shut down. negative logic as follows: CAUTION: Be careful of external electrical noise. The Trim input is a senstive Positive: Models equipped with Positive Logic are enabled when the On/Off input to the converter’s feedback control loop. Excessive electrical noise may cause pin is left open or is pulled high to +Vin with respect to –Vin. An internal bias cur- instability or oscillation. Keep external connections short to the Trim input. Use rent causes the open pin to rise to +Vin. Some models will also turn on at lower shielding if needed. intermediate voltages (see Specifications). Positive-logic devices are disabled when the On/Off is grounded or brought to within a low voltage (see Specifications) with Trim Equations respect to –Vin. Trim Up Trim Down Negative: Models with negative logic are on (enabled) when the On/Off is grounded or brought to within a low voltage (see Specifications) with respect to –Vin. The device is off (disabled) when the On/Off is left open or is pulled high to +VOUT +15Vdc Max. with respect to –Vin. −VIN Dynamic control of the On/Off function should be able to sink the specified signal current when brought low and withstand appropriate voltage when brought high. Be aware too that there is a finite time in milliseconds (see Specifications) ON/OFF 75-22 between the time of On/Off Control activation and stable, regulated output. This TRIM TURNS LOAD CONTROL time will vary slightly with output load type and current and input conditions. There are two CAUTIONs for the On/Off Control: +VIN −VOUT +VOUT +VIN Figure 4. Trim adjustments using a trimpot ON/OFF TRIM LOAD <Connect trim resistor <Connect trim resistor CONTROL RTRIMDOWN between Trim and –Vout> between Trim and +Vout> Where Vo = Desired output voltage. Adjustment accuracy is subject to resistor −VIN −VOUT UEI30-033-Q12/-Q48 12775 5110 (Vo - 2.5) Figure 5. Trim adjustments to decrease Output Voltage using a Fixed Resistor RT U P (Ω) = VO – 3.3 – 2050 RT D O W N (Ω) = 3.3 – VO – 2050 UEI30-050-Q12/-Q48 12775 5110 (Vo - 2.5) +VIN +VOUT RT U P (Ω) = VO – 5 – 2050 RT D O W N (Ω) = 5 – VO – 2050 UEI30-120-Q12/-Q48 25000 10000 (Vo-2.5) RT U P (Ω) = VO – 12 – 5110 RT D O W N (Ω) = 12 – VO –5110 COONN/TORFOFL TRIM RTRIMUP LOAD UEI30-150-Q12/-Q48 25000 10000 (Vo-2.5) RT U P (Ω) = VO – 15 – 5110 RT D O W N (Ω) = 15 – VO –5110 −VIN −VOUT Figure 6. Trim adjustments to increase Output Voltage using a Fixed Resistor tolerances and factory-adjusted output accuracy. Mount trim resistor close to converter. Use short leads. www.murata-ps.com/support MDC_UEI Series 30W.B05 Page 15 of 18

UEI30 Series 30W Isolated Wide-Range DC-DC Converters CAUTION: While it is possible to control the On/Off with external logic if you Emissions Performance carefully observe the voltage levels, the preferred circuit is either an open drain/ Murata Power Solutions measures its products for radio frequency emissions open collector transistor or a relay (which can thereupon be controlled by logic). against the EN 55022 and CISPR 22 standards. Passive resistance loads are The On/Off prefers to be set at approx. +15V (open pin) for the ON state, assuming employed and the output is set to the maximum voltage. If you set up your own positive logic. emissions testing, make sure the output load is rated at continuous power while doing the tests. CAUTION: Do not apply voltages to the On/Off pin when there is no input power voltage. Otherwise the converter may be permanently damaged. The recommended external input and output capacitors (if required) are included. Please refer to the fundamental switching frequency. All of this informa- tion is listed in the Product Specifications. An external discrete filter is installed and the circuit diagram is shown below. Resistive +VCC MODEL# UEI303-005W0 - Q48N-C Load 48 Vdc in, 5 Vout, 6 Amps UUT V+ 3 CC56 C1 C2 C3 C4 L1 C8 C7 Vin + Vout + RcinoemLsnsioitedsaatetiadin vlaee r ON/OFF CONTROL V- Vin - Vout - 1 -VIN Figure 8. Conducted Emissions Test Circuit [1] Conducted Emissions Parts List Figure 7. Driving the On/Off Control Pin (suggested circuit) Reference Description L1 500µH, 4.1A C8 Electrolytic Capacitor 100µfd, 100V Pre-Bias Protection C1, C2, C3 C4, C5, C6, C7 3.3µfd, 50V Pre-Bias Protection For applications where a pre-bias potential can be present at the output of the power module it is recommended that either [2] Conducted Emissions Test Equipment Used blocking diodes are added in series with the Vout power lines or, a preferred „ Rohde & Schwarz EMI Test Receiver (9KHz – 1000MHz) ESPC solution is to use an OR-ing FET controller like the LM5050-1 High-Side & „ Rohde & Schwarz Software ESPC-1 Ver. 2.20 LM5051 Low-Side OR-ing FET Controller from TI. Starting the module into a „ OHMITE 25W – 1 Ohm resistor combinations pre-bias condition can cause permanent damage to the module. „ DC Source Programmable DC Power Supply Model 62012P-100-50 [3] Conducted Emissions Test Results dBµV CONAV 80 70 60 50 40 30 20 10 0 -10 -20 0.15 1.0 10.0 30.0 MHz Graph 1. Conducted emissions performance with filter, Negative Line, CISPR 22, Class B, full load, for UEI30-033-Q48N-C www.murata-ps.com/support MDC_UEI Series 30W.B05 Page 16 of 18

UEI30 Series 30W Isolated Wide-Range DC-DC Converters dBµV CONAV dBµV CONAV 80 80 70 70 60 60 50 50 40 40 30 30 20 20 10 10 0 0 -10 -10 -20 -20 0.15 1.0 10.0 30.0 0.15 1.0 10.0 30.0 MHz MHz Graph 2. Conducted emissions performance with filter, Negative Line, CISPR 22, Graph 5. Conducted emissions performance with filter, Negative Line, CISPR 22, Class B, 5.43A @ 48Vin, for UEI30-050-Q48N-C Class B, full load, for UEI30-150-Q12N-C dBµV CONAV dBµV CONAV 80 90 70 80 60 70 50 60 40 50 30 40 20 30 10 20 0 10 -10 0 -20 -10 0.15 1.0 10.0 30.0 0.15 1.0 10.0 30.0 MHz MHz Graph 3. Conducted emissions performance with filter, Negative Line, CISPR 22, Graph 6. Conducted emissions performance with filter, Negative Line, CISPR 22, Class B, full load, for UEI30-120-Q12N-C Class B, full load, for UEI30-150-Q48N-C dBµV CONAV 80 70 [4] Layout Recommendations 60 Most applications can use the filtering which is already installed inside the 50 converter or with the addition of the recommended external capacitors. For greater 40 emissions suppression, consider additional filter components and/or shielding. 30 20 Emissions performance will depend on the user’s PC board layout, the chassis 10 shielding environment and choice of external components. 0 Since many factors affect both the amplitude and spectra of emissions, we -10 -20 recommend using an engineer who is experienced at emissions suppression. 0.15 1.0 10.0 30.0 MHz Graph 4. Conducted emissions performance with filter, Negative Line, CISPR 22, Class B, full load, for UEI30-120-Q48N-C www.murata-ps.com/support MDC_UEI Series 30W.B05 Page 17 of 18

UEI30 Series 30W Isolated Wide-Range DC-DC Converters Mean Time Before Failure (MTBF) Table These figures use a standard MTBF probability calculation as an indication of component parts stress and life derating. The calculaton is based on separate MTBF values for all internal parts in addition to stated environmental conditions. Two MTBF values are presented. The Telcordia method is widely used in industry, particularly telecom. The United States MIL-HDBK method is for military and industrial applications. Please refer to a qualified reliability engineer for more background. Model Number MTBF (Hours) Method [1,2] UEI30-033-Q12N-C 2,676,902 Telcordia UEI30-033-Q12N-C 2,123,124 MIL-HDBK UEI30-033-Q12P-C 2,733,781 Telcordia UEI30-033-Q12P-C 2,142,206 MIL-HDBK UEI30-033-Q48N-C 3,416,592 Telcordia Notes: [1] Mean Time Before Failure is calculated using the Telcordia (Belcore) SR-332 Method UEI30-033-Q48N-C 3,172,548 MIL-HDBK 1, Case 3, ISSUE 2, ground fixed controlled conditions, Tambient=+25°C, full output load, natural air convection. UEI30-033-Q48P-C 3,427,027 Telcordia [2] Mean Time Before Failure is calculated using MIL-HDBK-217FN2, GB ground benign, Tambient=+25°C, full output load, natural air convection. UEI30-033-Q48P-C 3,193,652 MIL-HDBK UEI30-050-Q12N-C 2,531,509 Telcordia UEI30-050-Q12N-C 2,207,508 MIL-HDBK UEI30-050-Q12P-C 2,554,127 Telcordia UEI30-050-Q12P-C 2,229,031 MIL-HDBK UEI30-120-Q48N-C 3,072,461 Telcordia UEI30-120-Q48N-C 2,510,927 MIL-HDBK UEI30-120-Q48P-C 2,900,319 Telcordia UEI30-120-Q48P-C 2,495,846 MIL-HDBK UEI30-150-Q48N-C 2,833,366 Telcordia UEI30-150-Q48N-C 2,408,836 MIL-HDBK UEI30-150-Q48P-C 2,776,615 Telcordia UEI30-150-Q48P-C 2,421,938 MIL-HDBK Soldering Guidelines Murata Power Solutions recommends the specifications below when installing these converters. These specifications vary depending on the solder type. Exceeding these specifications may cause damage to the product. Your production environment may differ; therefore please thoroughly review these guidelines with your process engineers. Wave Solder Operations for through-hole mounted products (THMT) For Sn/Ag/Cu based solders: For Sn/Pb based solders: Maximum Preheat Temperature 115° C. Maximum Preheat Temperature 105° C. Maximum Pot Temperature 270° C. Maximum Pot Temperature 250° C. Maximum Solder Dwell Time 7 seconds Maximum Solder Dwell Time 6 seconds This product is subject to the following operating requirements Murata Power Solutions, Inc. and the Life and Safety Critical Application Sales Policy: ISO 9001 and 14001 REGISTERED Refer to: https://www.murata-ps.com/requirements/ Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without notice. © 2020 Murata Power Solutions, Inc. www.murata-ps.com/support MDC_UEI Series 30W.B05 Page 18 of 18