UEI15 Series www.murata-ps.com Isolated Wide Input Range 15-Watt DC-DC Converters Typical unit Featuring a full 15 Watt or greater output in one square inch of board area, the UEI series isolated DC/DC converter family offers effi cient regulated DC power for printed circuit board mounting. FEATURES PRODUCT OVERVIEW  Small footprint DC/DC converter, ideal for Wide range 4:1 inputs on the 0.96" x 1.1" x 0.33" and noise specifi cations assure compatibility to high current applications converter are either 9 to 36 Volts DC (Q12 models) circuits using CPU’s, ASIC’s, programmable logic or 18 to 75 Volts DC (Q48 models), ideal for battery- and FPGA’s. For systems requiring controlled  Industry standard 0.96" x 1.1" X 0.33" open powered and telecom equipment. The industry- startup/shutdown, an external switch, transis- frame package and pinout standard pinout fi ts larger 1" x 2" converters. Fixed tor or digital logic may be used to activate the  Wide range input voltages 9-36 and 18-75 Vdc output voltages from 3.3 VDC to 15 VDC are regu- remote On/Off control.  Assembly and attachment for RoHS standards lated to within ±0.2% or less and may be trimmed A wealth of self-protection features avoid both within ±10% of nominal output. Applications converter and external circuit problems. These  Isolation up to 2250 VDC (basic) include small instruments, area-limited microcon- include input undervoltage lockout and overtem-  Up to 15 Watts or greater total output power trollers, computer-based systems, data communi- perature shutdown. The outputs current limit using with overtemperature shutdown cations equipment, remote sensor systems, vehicle the “hiccup” autorestart technique and the outputs and portable electronics. may be short-circuited indefi nitely. Additional  High effi ciency synchronous rectifi er forward The UEI 15W series includes full magnetic and features include output overvoltage and reverse topology optical isolation up to 2250 Volts DC (basic insula- conduction elimination.  Stable operation with no required external tion). For connection to digital systems, the outputs The high effi ciency offers minimal heat buildup components offer fast settling to current step loads and toler- and “no fan” operation.  Usable -40 to 85°C temperature range (with ance of higher capacitive loads. Excellent ripple derating)  Certifi ed to UL 60950-1, CAN/CSA-C22.2 No. 60950-1, IEC60950-1, EN60950-1 safety ap- provals, 2nd edition  Extensive self-protection shut down features +VOUT +VIN –VOUT On/Off Control Control GATE DRIVE ISOLATION BARRIER −VIN ISOLATION Reference, Trim & TRIM Error Amplifier Figure 1. Simplifi ed block diagram—3.3V and 5Vout models only. Typical topology is shown. For full details go to www.murata-ps.com/rohs www.murata-ps.com/support MDC_UEI15W.C18 Page 1 of 17

UEI15 Series Isolated Wide Input Range 15-Watt DC-DC Converters PERFORMANCE SPECIFICATIONS SUMMARY AND ORDERING GUIDE ➀ Output Input Open Frame R/N (mVp-p) ➁ Regulation (Max.) Iin = Iin = Efficiency Package – C75 Vin no full Vout Iout Power Nom. Range load load Case Root Models ➀ (V) (A) (W) Typ. Max. Line Load (V) (V) (mA) (A) Min. Typ. (inches) (mm) Pinout UEI15-033-Q12 3.3 4.5 14.85 60 90 ±0.05% ±0.1% 24 9-36 43 0.71 86.5% 89% UEI15-033-Q48 3.3 5 16.5 60 90 ±0.2% ±0.2% 48 18-75 24 0.4 85.5% 88% UEI15-050-Q12 5 3 15 70 125 ±0.05% ±0.075% 24 9-36 41 0.72 86.3% 87.3% UEI15-050-Q48 5 3 15 60 95 ±0.05% ±0.06% 48 18-75 28 0.36 84.3% 86.0% 1.1×0.96×0.33 27.9×24.4×8.4 P85 UEI15-120-Q12 12 1.3 15.6 110 150 ±0.05% ±0.05% 24 9-36 15 0.77 82.3% 84.5% UEI15-120-Q48 12 1.3 15.6 85 120 ±0.0 75% ±0.05% 48 18-75 15 0.38 83.3% 85% UEI15-150-Q12 15 1.1 16.5 130 175 ±0.05% ±0.05% 24 9-36 18 0.81 83.5% 85% UEI15-150-Q48 15 1.1 16.5 80 120 ±0.05% ±0.05% 48 18-75 14 0.4 83.3% 85.3% ➀ Please refer to the part number structure for additional options and complete ➂ Minimum output load for all models is 10% of maximum current. ordering part numbers. ➃ RoHS-6 compliance does not claim EU RoHS exemption 7b (lead in solder). ➁ All specifications are typical at nominal line voltage and full load, +25 deg.C. unless otherwise noted. See detailed specifications. PART NUMBER STRUCTURE UEI15 - 033- Q12 P M H Lx - C RoHS-6 Hazardous Substance Compliance (note 4) Unipolar Wide Input 15-Watt Series Pin Length Option Blank = Std. pin length 0.25˝ (6.3mm) Nominal Output Voltage Conformal Coating Option L1 = 0.110˝ (2.79mm) ➀ in Tenths of a Volt Blank = No coating, standard L2 = 0.145˝ (3.68mm) ➀ H = Coating added, optional (Built to order; contact Murata Power Solutions for MOQ and lead times. Not available on SMT models.) Input Voltage Range Surface Mount Option Q12 = 9-36V Blank = Standard through-hole pin mount version Q48 = 18-75V M = SMT version (MSL rating 2) ➁ On/Off Control Logic: P = Positive N = Negative ➀ Special quantity order is required; samples available with standard pin length only. ➁ SMT (M) versions not available in sample quantities. ➂ Some model number combinations may not be available. See website or contact your local Murata sales representative. SPECIAL CUSTOMER CONFIGURATION PART NUMBERS: 1)UEI-31204-C (Restricted AVL and surface mount package) 2)UEI15-050-Q12PH-31331 (5Vout @ 15W, Positive Logic, Conformal Coating, Hi-pot Tested to 2,000Vrms) www.murata-ps.com/support MDC_UEI15W.C18 Page 2 of 17

UEI15 Series Isolated Wide Input Range 15-Watt DC-DC Converters FUNCTIONAL SPECIFICATIONS INPUT CHARACTERISTICS Under- Reflected Recom- Input Current Remote On/Off Control Start-up voltage (back) mended Internal Reverse threshold Shut- Ripple Inrush Min. Output Short Standby Fast-blow Input Polarity On/Off Positive Logic Negative Logic down Current Transient Load Circuit Low Line Mode Fuse Filter Protec- Current blank model "N" model Model Family V V mA pk-pk A2sec mA mA A mA A Type tion mA suffix suffix UEI15-033-Q12 9.118 8.6 100 1.86 4 UEI15-033-Q48 16.7 15.6 65 1.03 2 C OFF=open pin UEI15-050-Q12 9.518 8.5 105 1.90 4 None. OFF=Gnd pin or +10 to + Install or –0.7 to +0.7V UEI15-050-Q48 16.7 15.6 60 0.96 2 L 15V max. 30 0.05 50 1 external 1 max. ON=open UEI15-120-Q12 9.518 8.4 110 2.04 4 fuse. See pin or +10 to ON=Gnd pin or –0.7 to UEI15-120-Q48 16.7 15.6 56 1.02 1.5 note 15. +15V max. C +0.8V max. UEI15-150-Q12 9.518 8.4 130 2.13 4 UEI15-150-Q48 16.7 16.2 60 1.06 2 OUTPUT CHARACTERISTICS Model Family MImoauAxt . 19 5%A0c %ocVfuo LuVraton cao ymd A%dRj uoasfn tVmgneeomn t %TCe mooefp fVefiorcuaitet un/ºrtCe CLaopwac EitSivRe <µL0oF.a0d2iΩng M Maxa,x . OvervoltagVe protection OV protection method Voltage Out-put Range Ripple/Noise (20 MHz 8bandwidth) Line/Load Regulation Efficiency UEI15-033-Q12 4.5 UEI15-033-Q48 See 1,000 3.9 UEI15-050-Q12 Ordering 5.9 UEI15-050-Q48 Guide 17 470 5.9 Magnetic ±1 ±10 ±0.02 See ordering guide UEI15-120-Q12 (Minimum 1,000 14.1 feedback UEI15-120-Q48 load is 10% 15 UEI15-150-Q12 of Imax) 470 19.5 UEI15-150-Q48 20 ISOLATION CHARACTERISTICS DYNAMIC CHARACTERISTICS Dynamic Load Isolation Start-up Time Response Peak Input to Resistance Isolation Isolation Switching Output Min. Min. Capacitance Safety lo(a5d0 s-7te5p-)5 0µ%Se c DevmiaVtion Vin t(oM Vaoxu.t) rmegSuelcated rReegmuloattee dO nm/Oaxff. )t om VSoeuct Frequency Model Family Vdc MΩ pF Rating Model Family to 1% Vout ➀ KHz UEI15-033-Q12 2000 10 1000 UEI15-033-Q12 150 ±125 350 UEI15-033-Q48 2250 10 1500 UEI15-033-Q48 ±35 350 UEI15-050-Q12 2000 10 1500 UEI15-050-Q12 100 ±60 350 UEI15-050-Q48 2250 10 1000 Basic UEI15-050-Q48 ±30 375 50 50 UEI15-120-Q12 2000 10 1000 insulation UEI15-120-Q12 150 ±150 340 UEI15-120-Q48 2250 10 1000 UEI15-120-Q48 ±200 350 UEI15-150-Q12 2000 10 1500 UEI15-150-Q12 100 ±125 340 UEI15-150-Q48 2250 10 1000 UEI15-150-Q48 ±175 380 MISCELLANEOUS CHARACTERISTICS Operating Temperature Range Current Limit Short Short Short Circuit Storage Thermal Inception 98% of Circuit Circuit Duration Pre- Calculated See Temperature protection/ Vout, after warmup Protection Current (output shorted biased MTBF Derating Range shutdown Model Family A Method A to ground)➀ setup Hours ➃ Curves ºC ºC UEI15-033-Q12 6.0 2 x 106 UEI15-033-Q48 7.2 3.49 x 106 UEI15-050-Q12 4.6 115 Current UEI15-050-Q48 4.5 limiting, 2 x 106 0.3 Continuous Monotonic –40 to +85ºC –55 to +125 ºC UEI15-120-Q12 2.0 hiccup autorestart UEI15-120-Q48 1.8 4.1 x 106 135 UEI15-150-Q12 1.6 2.1 x 106 115 UEI15-150-Q48 1.7 2 x 106 Remove overload for recovery. www.murata-ps.com/support MDC_UEI15W.C18 Page 3 of 17

UEI15 Series Isolated Wide Input Range 15-Watt DC-DC Converters (4) Mean Time Before Failure is calculated using the Telcordia (Belcore) SR- ABSOLUTE MAXIMUM RATINGS 332 Method 1, Case 3, ground fixed conditions, Tpcboard=+25 deg.C, full load, Volts Max. continuous 36 VDC Q12 models natural air convection. Input Volts, transient 100mS 50 VDC (5) The On/Off Control is normally controlled by a switch. But it may also be Voltage Volts Max. continuous 75 VDC driven with external logic or by applying appropriate external voltages which are Q48 models Volts, transient 100mS 100 VDC referenced to Input Common. The On/Off Control Input should use either an open On/Off control, Volts, Min. –0.3 collector or open drain transistor. referred to –Vin Volts, Max. 15 (6) Output current limiting begins when the output voltage degrades approximately 2% from the selected setting. Input Reverse Polarity Protection See fuse section (7) The outputs are not intended to sink appreciable reverse current. This may Output Overvoltage, Volts Max. Vout nom. +20% damage the outputs. Output Current, sustained short circuit Current-limited, see specs (8) Output noise may be further reduced by adding an external filter. See I/O Fil- Range, Min. ºC -55 tering and Noise Reduction. Storage Temperature Max. ºC +125 (9) All models are fully operational and meet published specifications, including “cold start” at –40°C. Absolute Maximum Ratings Root Models Conditions Minimum Typical Maximum Units Absolute maximums are stress ratings. Exposure of devices to greater than any All UEI15 Q12 Start up at –40°C 10 10.5 11 Vdc of these conditions may adversely affect long-term reliability. Proper operation (10) Regulation specifications describe the deviation as the line input voltage under conditions other than those listed in the Performance/Functional Specifi- or output load current is varied from a nominal midpoint value to either extreme. cations is neither implied nor recommended. (11) The output overvoltage protection is automatic recovery after fault removal. The overvoltage may occur either from internal failure or from an SPECIFICATION NOTES external forcing voltage as in a shared power system. (1) All models are tested and specified with external capacitors listed in the (12) Output current limit and short circuit protection is non-latching. When the table below. The external capacitors listed below are ONLY for establishing test overcurrent fault is removed, the converter will immediately recover. specifications. They are required for our test fixtures and equipment. Your applica- (13) Do not exceed maximum power specifications when adjusting the output tion may not need them. The converter is stable with no external capacitors but trim. Murata Power Solutions strongly recommends external caps. All caps are low-ESR types. Where two or more capacitors are listed, these are connected in parallel. All (14) At zero output current, the output may contain low frequency components caps should mount close to the DC/DC using short leads. which exceed the ripple specification. The output may be operated indefinitely with no load. All specifications are typical unless noted. General conditions for Specifica- tions are +25 deg.C, Vin=nominal, Vout=nominal, full load. Adequate airflow must (15) If reverse polarity is accidentally applied to the input, to ensure reverse in- be supplied for extended testing under power. put protection with full output load, always connect an external input fuse in series (2) Input Ripple Current is tested and specified over a 5 Hz to 20 MHz band- with the +Vin input. Use approximately twice the full load input current rating at minimum input voltage. width. Input filtering is Cin=33 µF, 100V tantalum, Cbus=220 µF, 100V electro- lytic, Lbus=12 µH. (16) “Hiccup” operation repeatedly attempts to restart the converter with a brief, full-current output. If the overcurrent condition still exists, the restart current (3) Note that Maximum Power Derating curves indicate an average current at will be removed and then tried again. This short current pulse prevents over- nominal input voltage. At higher temperatures and/or lower airflow, the DC/DC heating and damaging the converter. Once the fault is removed, the converter converter will tolerate brief full current outputs if the total RMS current over time immediately recovers normal operation. does not exceed the Derating curve. All Derating curves are presented at sea level altitude. Be aware of reduced power dissipation with increasing density altitude. (17) On model UEI15-050-Q48, if Vin <20V, output trim may only be adjusted downwards from +5.0V (more negative). (18) Typical values shown. For minimum and maximum values see table below. INPUT/OUTPUT EXTERNAL TEST CAPACITORS Root Models Conditions Minimum Maximum Units Model Input Capacitor Output Capacitor(s) All UEI15 Q12 @+25°C 8.8 10 Vdc UEI15-033-Q12 100 µF 1 µF & 10 µF CAUTION: This product is not internally fused. To comply with safety agency certifications and to avoid injury to personnel or equipment, the user UEI15-033-Q48 4.7 µF ceramic 1 µF & 10 µF must connect an external fast-blow fuse to the input terminals. See fuse UEI15-050-Q12 100 µF 1 µF & 10 µF information. UEI15-050-Q48 4.7 µF ceramic 1 µF & 10 µF (19) All models require 10% of Imax minimum output load to meet specifi- UEI15-120-Q12 100 µF 1 µF & 10 µF cations. However, they will not be damaged at zero output load. UEI15-120-Q48 4.7 µF ceramic 1 µF & 10 µF UEI15-150-Q12 100 µF 1 µF & 10 µF UEI15-150-Q48 4.7 µF ceramic 1 µF & 10 µF www.murata-ps.com/support MDC_UEI15W.C18 Page 4 of 17

UEI15 Series Isolated Wide Input Range 15-Watt DC-DC Converters PERFORMANCE DATA UEI15-033-Q12 Effi ciency vs. Line Voltage and Load Current @ 25°C Maximum Current Temperature Derating @sea level (Vin = 12V or 24V, airfl ow from input to output) 90 5.5 85 5.0 80 4.5 75 Vin = 36 V ps) Naaattuurraall CCoonnvveeccttiioonn Efficiency (%) 6750 VVViiinnn === 2 1948 VVV utCurrent (A(A(m 34..50 p 60 Out 3.0 55 2.5 50 2.0 0 0.5 1 1.5 2 2.5 3 3.5 4 40 45 50 55 60 65 70 75 80 85 Load Current (Amps) AAAmmbienttemperature (°C) UEI15-033-Q48 Effi ciency vs. Line Voltage and Load Current @ 25°C Maximum Current Temperature Derating @sea level (Vin = 24V, airfl ow from input to output) 90 5.10 85 4.90 Naaattuurraall CCoonnvveeccttiioonn 4.70 0.5 m/s (100 LFM) 80 1.0 m/s (200 LFM) ps)4.50 11111.....55555 mmmmm/////sssss (((((333330000000000 LFMM)) 75 Am %) Vin = 75 V nt (4.30 Efficiency ( 6750 VViinn == 1488 VV OutputCurre34..9100 60 3.70 55 3.50 40 45 50 55 60 65 70 75 80 85 50 AAAmmbientTemperature (°C) 1 2 3 4 5 Load Current (Amps) UEI15-033-Q48 Maximum Current Temperature Derating @sea level (Vin = 48V, airfl ow from input to output) 5.20 5.00 Naaattuurraall CCoonnvveeccttiioonn 4.80 0.5 m/s (100 LFM) mps) 11..05 mm//ss ((230000 LLFFMM)) Current (A(A(44..4600 2222....0000 mmmm////ssss ((((444400000000 LFMM)) Output4.20 4.00 3.80 40 45 50 55 60 65 70 75 80 85 AAAmmbienttemperature (°C) www.murata-ps.com/support MDC_UEI15W.C18 Page 5 of 17

UEI15 Series Isolated Wide Input Range 15-Watt DC-DC Converters PERFORMANCE DATA UEI15-050-Q12 Efficiency vs. Line Voltage and Load Current @ 25°C Maximum Current Temperature Derating @Sea Level (Vin = 24V, airflow is from pin 1 to pin 3) 100 4 90 80 s) 3 p 70 m 0.33 m/s (65 LFM) Efficiency (%)5600 VVViiinnn === 231468 VVV ut Current (A 2 40 Vin = 9 V utp 1 O 30 20 0 20 25 30 35 40 45 50 55 60 65 70 75 80 85 10 0.25 0.5 0.75 1 1.25 1.5 1.75 2 2.25 2.5 2.75 3 Ambient Temperature (°C) Load Current (Amps) UEI15-050-Q48 Efficiency vs. Line Voltage and Load Current @ 25°C Maximum Current Temperature Derating @Sea Level (Vin = 24V or 48V, airflow is from input to output) 100 3.20 90 80 3.10 %) 70 mps) 3.00 Efficiency ( 6543200000 VVVViiiinnnn ==== 37126584 VVVV Output Current (A 222...789000 Natural Convection 2.60 10 2.50 0 40 45 50 55 60 65 70 75 80 85 0 0.5 1 1.5 2 2.5 3 Ambient Temperature (°C) Load Current (Amps) UEI15-120-Q12 Efficiency vs. Line Voltage and Load Current @ 25°C Maximum Current Temperature Derating @Sea Level (Vin = 24V, airflow is from pin 1 to pin 3) 90 1.5 85 0.33 m/s (65 LFM) %)80 mps) 1 ciency (75 VViinn == 2346 VV urrent (A Effi70 Vin = 18 V ut C 0.5 p Vin = 9 V ut O 65 60 0 20 25 30 35 40 45 50 55 60 65 70 75 80 85 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2 1.3 Ambient Temperature (°C) Load Current (Amps) www.murata-ps.com/support MDC_UEI15W.C18 Page 6 of 17

UEI15 Series Isolated Wide Input Range 15-Watt DC-DC Converters PERFORMANCE DATA UEI15-120-Q48 Efficiency vs. Line Voltage and Load Current @ 25°C Maximum Current Temperature Derating @Sea Level 90 (Vin = 24V or 48V, airflow is from pin 2 to pin 1) 88 1.3 86 Natural Convection 1.2 84 Vin = 75 V s) 1.1 %) 82 VViinn == 4284 VV Amp 1.0 Efficiency ( 7880 Vin = 18 V Current ( 00..89 ut 76 utp 0.7 O 74 0.6 72 0.5 40 45 50 55 60 65 70 75 80 85 70 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2 1.3 Ambient Temperature (°C) Load Current (Amps) UEI15-150-Q12 Efficiency vs. Line Voltage and Load Current @ 25°C Maximum Current Temperature Derating @Sea Level (Vin = 12V and 24V, airflow is from input to output) 90 1.15 88 1.10 s) Natural Convection 86 mp 1.05 A Efficiency (%) 888024 VViinn == 2346 VV utput Current ( 001...990050 O 78 Vin = 9 V 0.85 76 0.80 40 45 50 55 60 65 70 75 80 85 74 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 Ambient Temperature (°C) Load Current (Amps) UEI15-150-Q48 Efficiency vs. Line Voltage and Load Current @ 25°C Maximum Current Temperature Derating @Sea Level (Vin = 24V and 48V, airflow is from input to output) 95 1.15 90 1.10 s) Natural Convection 85 mp 1.05 A Efficiency (%) 7850 Vin = 75 V put Current ( 01..9050 70 Vin = 48 V ut 0.90 O Vin = 24 V 65 Vin = 18 V 0.85 60 0.80 0.07 0.18 0.28 0.38 0.49 0.59 0.69 0.80 0.90 1.00 1.10 40 45 50 55 60 65 70 75 80 85 Load Current (Amps) Ambient Temperature (°C) www.murata-ps.com/support MDC_UEI15W.C18 Page 7 of 17

UEI15 Series Isolated Wide Input Range 15-Watt DC-DC Converters MECHANICAL SPECIFICATIONS, OPEN FRAME TOP VIEW PHYSICAL CHARACTERISTICS 27.9 Pin Material Copper alloy Case 75 1.10 Pin Diameter 0.04˝ (1.016mm) Pin Finish Gold plate PIN #1 Through Hole Pin Material Copper alloy Nickel subplate 50 µ-inches TH Pin Plating Metal and Thickness 24.4 Gold overplate 5 µ-inches 0.96 Weight 0.352 oz./10 grams EN55022/CISPR22 (see note 1) (Requires Electromagnetic Interference external filter) Flammability Rating UL 94V-0 Certified to UL/cUL 60950-1, CAN/CSA- Safety C22.2-60950-1, IEC/EN 60950-1, 2nd edition SIDE VIEW MOUNTING PLANE 8.4 0.33 .040±.002 .071 .002 SHOULDER 6X AT PINS 1-6 BOTTOM VIEW END VIEW CL #6 10.16 0.475 #5 0.400 INPUT/OUTPUT CONNECTIONS REF .30 Pin Function #2 1 +Vin 2 -Vin 10.16 #4 #1 5.08 3 +Vout 0.400 0.200 4 Output Trim 5 -Vout CL CL 6 On/Off Control* #3 10.16 *The Remote On/Off can be provided 0.400 0.41 with either positive (P suffix) or nega- tive (N suffix) logic 2.54 0.100 RECOMMENDED 0.15 TYP 6.3 PRI-SEC BARRIER 0.25 Dimensions are in inches (mm shown for ref. only). 0.58 20.32 Third Angle Projection 0.800 Standard pin length is shown. Please refer to the Ordering Guide for alternate pin lengths. Tolerances (unless otherwise specified): .XX ± 0.02 (0.5) .XXX ± 0.010 (0.25) Angles ± 1˚ Components are shown for reference only. www.murata-ps.com/support MDC_UEI15W.C18 Page 8 of 17

UEI15 Series Isolated Wide Input Range 15-Watt DC-DC Converters SHIPPING TRAYS AND BOXES, THROUGH-HOLE MOUNT Anti-static foam Label Label Each tray is 6 x 5 units (30 units per tray) SHIPPING TRAY DIMENSIONS UEI modules are supplied in a 30-piece (6 x 5) shipping tray. The tray is an anti-static closed-cell polyethylene foam. Dimensions are shown below. [9.92] 252.0 6.4 Typ 6.4 28.4 Typ Typ 18.0 5x 38.1 25.4 252.0 Typ 252.0 [9.92] 190.5 Ref Ref 252.0 Ref R6.4 A A Typ 4x 44.5 9.5 deep 19.1 Ref 177.8 Ref 22.9 Ref 9.5 [.38 in] Pocket 19.1 [.75 in] Depth SECTION A-A Notes: 1. Material: Dow 220 antistat ethafoam (Density: 34-35 kg/m3) 2. Dimensions: 252 x 252 x 19.1 mm 6 x 5 array (30 per tray) 3. All dimensions in millimeters [inches] 4. Tolerances unless otherwise specified: +1/-0 www.murata-ps.com/support MDC_UEI15W.C18 Page 9 of 17

UEI15 Series Isolated Wide Input Range 15-Watt DC-DC Converters MECHANICAL SPECIFICATIONS, SURFACE MOUNT PACKAGE (MSL RATING 2) TOP VIEW 27.9 Dimensions are in inches (mm shown for ref. only). INPUT/OUTPUT CONNECTIONS 1.10 Pin Function Third Angle Projection 1 +Vin PIN #1 2 -Vin 3 +Vout 4 Output Trim 5 -Vout 24.4 Tolerances (unless otherwise specified): 6 On/Off Control* 0.96 .XX ± 0.02 (0.5) .XXX ± 0.010 (0.25) *The Remote On/Off can be provided Angles ± 1˚ with either positive (P suffix) or nega- tive (N suffix) logic Components are shown for reference only. SIDE VIEW MOUNTING PLANE .093 TYP BOTTOM VIEW END VIEW CL #6 10.16 0.33±.03 #5 0.400 [8.4±0.8] #2 2.54 10.16 #4 #1 0.100 0.400 CL CL #3 10.16 .093 2.54 0.400 0.100 20.32 0.13 0.800 REF www.murata-ps.com/support MDC_UEI15W.C18 Page 10 of 17

UEI15 Series Isolated Wide Input Range 15-Watt DC-DC Converters MECHANICAL SPECIFICATIONS, SURFACE MOUNT PACKAGE 29.0 1.14 C L 3 2.54 10.16 0.100 25.4 0.400 1 1.00 CL 4 2 10.16 0.400 2.54 5 6 0.100 2.60 ±0.25 6X .102 ±.010 20.32 0.800 RECOMMENDED SMT PAD LAYOUT SURFACE MOUNT TAPE AND REEL INFORMATION (MSL RATING 2) PACKAGING CONFORMS TO EIA-481 CONVERTERS SHIPPING IN QUANTITIES OF 100 PER REEL NOTE: The SMT package has an MSL 2 rating. 3.00 5.0mm PICK & 0.118 2.00 PLACE LOCATION 0.079 23.10 0.909 56.0 2.20 32.00 1.260 DIRECTION OF FEED 13.0 COVER TAPE R.256 Dimensions in inches [mm] 9.27 0.365 SURFACE MOUNT TAPE AND REEL www.murata-ps.com/support MDC_UEI15W.C18 Page 11 of 17

UEI15 Series Isolated Wide Input Range 15-Watt DC-DC Converters put voltage regulation. Since real-world voltage sources have finite impedance, TECHNICAL NOTES performance is improved by adding external filter components. Sometimes only Input Fusing a small ceramic capacitor is sufficient. Since it is difficult to totally characterize Certain applications and/or safety agencies may require fuses at the inputs of all applications, some experimentation may be needed. Note that external input power conversion components. Fuses should also be used when there is the capacitors must accept high speed switching currents. possibility of sustained input voltage reversal which is not current-limited. For Because of the switching nature of DC/DC converters, the input of these greatest safety, we recommend a fast blow fuse installed in the ungrounded converters must be driven from a source with both low AC impedance and input supply line. adequate DC input regulation. Performance will degrade with increasing input The installer must observe all relevant safety standards and regulations. For inductance. Excessive input inductance may inhibit operation. The DC input safety agency approvals, install the converter in compliance with the end-user regulation specifies that the input voltage, once operating, must never degrade safety standard, i.e. IEC/EN/UL 60950-1. below the Shut-Down Threshold under all load conditions. Be sure to use adequate trace sizes and mount components close to the converter. Input Reverse-Polarity Protection If the input voltage polarity is reversed, an internal diode will become forward I/O Filtering, Input Ripple Current and Output Noise biased and likely draw excessive current from the power source. If this source All models in this converter series are tested and specified for input reflected is not current-limited or the circuit appropriately fused, it could cause perma- ripple current and output noise using designated external input/output compo- nent damage to the converter. nents, circuits and layout as shown in the figures below. External input capaci- tors (Cin in the figure) serve primarily as energy storage elements, minimizing Input Under-Voltage Shutdown and Start-Up Threshold line voltage variations caused by transient IR drops in the input conductors. Under normal start-up conditions, converters will not begin to regulate properly Users should select input capacitors for bulk capacitance (at appropriate until the ramping-up input voltage exceeds and remains at the Start-Up frequencies), low ESR and high RMS ripple current ratings. In the figure below, Threshold Voltage (see Specifications). Once operating, converters will not the Cbus and Lbus components simulate a typical DC voltage bus. Your specific turn off until the input voltage drops below the Under-Voltage Shutdown Limit. system configuration may require additional considerations. Please note that the Subsequent restart will not occur until the input voltage rises again above the values of Cin, Lbus and Cbus will vary according to the specific converter model. Start-Up Threshold. This built-in hysteresis prevents any unstable on/off opera- tion at a single input voltage. In critical applications, output ripple and noise (also referred to as periodic and random deviations or PARD) may be reduced by adding filter elements Users should be aware however of input sources near the Under-Voltage such as multiple external capacitors. Be sure to calculate component tempera- Shutdown whose voltage decays as input current is consumed (such as capaci- ture rise from reflected AC current dissipated inside capacitor ESR. tor inputs), the converter shuts off and then restarts as the external capacitor recharges. Such situations could oscillate. To prevent this, make sure the oper- ating input voltage is well above the UV Shutdown voltage AT ALL TIMES. Start-Up Time TO Assuming that the output current is set at the rated maximum, the VIN to VOUT OSCILLOSCOPE CURRENT Start-Up Time (see Specifications) is the time interval between the point when PROBE +VIN the ramping input voltage crosses the Start-Up Threshold and the fully loaded + LBUS regulated output voltage enters and remains within its specified accuracy band. Actual measured times will vary with input source impedance, external input VIN +– CBUS CIN capacitance, input voltage slew rate and final value of the input voltage as it – appears at the converter. -VIN These converters include a soft start circuit to moderate the duty cycle of its CIN = 33µF, ESR < 700mΩ @ 100kHz PWM controller at power up, thereby limiting the input inrush current. CBUS = 220µF, ESR < 100mΩ @ 100kHz LBUS = 12µH The On/Off Remote Control interval from On command to VOUT regulated Figure 2. Measuring Input Ripple Current assumes 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 command until the output enters and remains within its specified accuracy band. The specification assumes that the output is fully loaded at maximum Floating Outputs rated current. Similar conditions apply to the On to VOUT regulated specification Since these are isolated DC/DC converters, their outputs are “floating” with such as external load capacitance and soft start circuitry. respect to their input. The essential feature of such isolation is ideal ZERO CURRENT FLOW between input and output. Real-world converters however do Input Source Impedance exhibit tiny leakage currents between input and output (see Specifications). These converters will operate to specifications without external components, These leakages consist of both an AC stray capacitance coupling component assuming that the source voltage has very low impedance and reasonable in- www.murata-ps.com/support MDC_UEI15W.C18 Page 12 of 17

UEI15 Series Isolated Wide Input Range 15-Watt DC-DC Converters MPS makes Characterization measurements in a closed cycle wind tunnel with calibrated airflow. We use both thermocouples and an infrared camera system to observe thermal performance. As a practical matter, it is quite diffi- cult to insert an anemometer to precisely measure airflow in most applications. Sometimes it is possible to estimate the effective airflow if you thoroughly un- derstand the enclosure geometry, entry/exit orifice areas and the fan flowrate C1 C2 SCOPE RLOAD specifications. If in doubt, contact MPS to discuss placement and measurement techniques of suggested temperature sensors. CAUTION: If you routinely or accidentally exceed these Derating guidelines, the converter may have an unplanned Over Temperature shut down. Also, these graphs are all collected at slightly above Sea Level altitude. Be sure to reduce C1 = 1µF the derating for higher density altitude. C2 = 10µF LOAD 2-3 INCHES (51-76mm) FROM MODULE Output Overvoltage Protection Figure 3. Measuring Output Ripple and Noise (PARD) This converter monitors its output voltage for an over-voltage condition using an on-board electronic comparator. The signal is optically coupled to the pri- and a DC leakage resistance. When using the isolation feature, do not allow mary side PWM controller. If the output exceeds OVP limits, the sensing circuit the isolation voltage to exceed specifications. Otherwise the converter may will power down the unit, and the output voltage will decrease. After a time-out be damaged. Designers will normally use the negative output (-Output) as period, the PWM will automatically attempt to restart, causing the output volt- the ground return of the load circuit. You can however use the positive output age to ramp up to its rated value. It is not necessary to power down and reset (+Output) as the ground return to effectively reverse the output polarity. the converter for the this automatic OVP-recovery restart. Minimum Output Loading Requirements If the fault condition persists and the output voltage climbs to excessive levels, These converters employ a synchronous rectifier design topology. Models the OVP circuitry will initiate another shutdown cycle. This on/off cycling is referred UEI15-033-Q12, UEI15-120-Q12, and UEI15-050-Q12 require 10% minimum to as “hiccup” mode. It safely tests full current rated output voltage without damag- load to meet specifications. Operation under less than 10% load may slightly ing the converter. increase regulation, ripple, and noise. Output Fusing Thermal Shutdown The converter is extensively protected against current, voltage and temperature To prevent many over temperature problems and damage, these converters extremes. However your output application circuit may need additional protec- include thermal shutdown circuitry. If environmental conditions cause the tion. In the extremely unlikely event of output circuit failure, excessive voltage temperature of the DC/DC’s to rise above the Operating Temperature Range could be applied to your circuit. Consider using an appropriate fuse in series up to the shutdown temperature, an on-board electronic temperature sensor with the output. will power down the unit. When the temperature decreases below the turn-on threshold, the converter will automatically restart. There is a small amount of Output Current Limiting hysteresis to prevent rapid on/off cycling. As soon as the output current increases to approximately 125% to 150% of CAUTION: If you operate too close to the thermal limits, the converter may shut its maximum rated value, the DC/DC converter will enter a current-limiting down suddenly without warning. Be sure to thoroughly test your application to mode. The output voltage will decrease proportionally with increases in output avoid unplanned thermal shutdown. current, thereby maintaining a somewhat constant power output. This is com- monly referred to as power limiting. Temperature Derating Curves Current limiting inception is defined as the point at which full power falls The graphs in this data sheet illustrate typical operation under a variety of below the rated tolerance. See the Performance/Functional Specifications. Note conditions. The Derating curves show the maximum continuous ambient air particularly that the output current may briefly rise above its rated value. This temperature and decreasing maximum output current which is acceptable enhances reliability and continued operation of your application. If the output under increasing forced airflow measured in Linear Feet per Minute (“LFM”). current is too high, the converter will enter the short circuit condition. Note that these are AVERAGE measurements. The converter will accept brief increases in temperature and/or current or reduced airflow as long as the aver- Output Short Circuit Condition age is not exceeded. When a converter is in current-limit mode, the output voltage will drop as Note that the temperatures are of the ambient airflow, not the converter the output current demand increases. If the output voltage drops too low, the itself which is obviously running at higher temperature than the outside air. magnetically coupled voltage used to develop primary side voltages will also Also note that “natural convection” is defined as very flow rates which are not drop, thereby shutting down the PWM controller. Following a time-out period, using fan-forced airflow. Depending on the application, “natural convection” is the PWM will restart, causing the output voltage to begin ramping up to its ap- usually about 30-65 LFM but is not equal to still air (0 LFM). propriate value. If the short-circuit condition persists, another shutdown cycle will initiate. This on/off cycling is called “hiccup mode”. The hiccup cycling www.murata-ps.com/support MDC_UEI15W.C18 Page 13 of 17

UEI15 Series Isolated Wide Input Range 15-Watt DC-DC Converters reduces the average output current, thereby preventing excessive internal temperatures. A short circuit can be tolerated indefinitely. −VIN +VOUT Trimming the Output Voltage The Trim input to the converter allows the user to adjust the output voltage over the rated trim range (please refer to the Specifications). In the trim equa- tions and circuit diagrams that follow, trim adjustments use either a trimpot or ON/OFF TRIM LOAD a single fixed resistor connected between the Trim input and either the positive CONTROL RTRIMUP or negative output terminals. (On some converters, an external user-supplied precision DC voltage may also be used for trimming). Trimming resistors should have a low temperature coefficient (±100 ppm/deg.C or less) and be mounted close to the converter. Keep leads short. If the trim function is not used, leave +VIN −VOUT the trim unconnected. With no trim, the converter will exhibit its specified output voltage accuracy. Figure 6. Trim adjustments to increase Output Voltage using a Fixed Resistor +VOUT CAUTION: Be careful of external electrical noise. The Trim input is a senstive −VIN input to the converter’s feedback control loop. Excessive electrical noise may cause instability or oscillation. Keep external connections short to the Trim input. Use shielding if needed. 5-22 ON/OFF TRIM T7URNS LOAD Trim Equations CONTROL Trim Up Trim Down <Connect trim <Connect trim resistor between resistor between Trim and −VOUT> Trim and +VOUT> +VIN −VOUT UEI15-033-Q12, Q48 Figure 4. Trim adjustments using a trimpot 12775 5110 (Vo - 2.5) RTUP (Ω) = VO – 3.3 –2050 RTDOWN (Ω) = 3.3 – VO –2050 UEI15-050-Q12, Q48 +VOUT −VIN 12775 5110 (Vo - 2.5) RTUP (Ω) = VO – 5 –2050 RTDOWN (Ω) = 5 – VO –2050 UEI15-120-Q12, Q48 COONN/TORFOFL TRIM RTRIMDOWN LOAD RTUP (Ω) = V2O5 0–0 102 – 5110 RTDOWN (Ω) =1000102 (–V Vo-O2 .5)–5110 UEI15-150-Q12, Q48 25000 10000 (Vo-2.5) +VIN −VOUT RTUP (Ω) = VO – 15 – 5110 RTDOWN (Ω) = 15 – VO –5110 Figure 5. Trim adjustments to decrease Output Voltage using a Fixed Resistor Where Vo = Desired output voltage. Adjustment accuracy is subject to resis- tor tolerances and factory-adjusted output accuracy. Mount trim resistor close There are two CAUTIONs to be aware for the Trim input: to converter. Use short leads. CAUTION: To avoid unplanned power down cycles, do not exceed EITHER the Remote On/Off Control maximum output voltage OR the maximum output power when setting the trim. On the input side, a remote On/Off Control can be ordered with either logic type. Be particularly careful with a trimpot. If the output voltage is excessive, the OVP circuit may inadvertantly shut down the converter. If the maximum power Positive-logic models are enabled when the On/Off pin is left open or is is exceeded, the converter may enter current limiting. If the power is exceeded pulled high to +15V max. with respect to –VIN. Some models will also turn on for an extended period, the converter may overheat and encounter overtem- at lower intermediate voltages (see Specifications). Positive-logic devices are perature shut down. www.murata-ps.com/support MDC_UEI15W.C18 Page 14 of 17

UEI15 Series Isolated Wide Input Range 15-Watt DC-DC Converters disabled when the On/Off is grounded or brought to within a low voltage (see Through-hole Soldering Guidelines Specifications) with respect to –VIN. Murata Power Solutions recommends the TH soldering specifications below when install- ing these converters. These specifications vary depending on the solder type. Exceeding Negative-logic devices are on (enabled) when the On/Off is grounded or these specifications may cause damage to the product. Your production environment may brought to within a low voltage (see Specifications) with respect to –VIN. The differ; therefore please thoroughly review these guidelines with your process engineers. device is off (disabled) when the On/Off is left open or is pulled high to +15V dc max. with respect to –VIN. Wave Solder Operations for through-hole mounted products (THMT) Dynamic control of the On/Off function should be able to sink appropriate For Sn/Ag/Cu based solders: signal current when brought low and withstand appropriate voltage when Maximum Preheat Temperature 115° C. brought high. Be aware too that there is a finite time in milliseconds (see Maximum Pot Temperature 270° C. Specifications) between the time of On/Off Control activation and stable, Maximum Solder Dwell Time 7 seconds regulated output. This time will vary slightly with output load type and current For Sn/Pb based solders: and input conditions. Maximum Preheat Temperature 105° C. There are three CAUTIONs for the On/Off Control: Maximum Pot Temperature 250° C. CAUTION: To retain full output circuit isolation, control the On/Off from the in- Maximum Solder Dwell Time 6 seconds put side ONLY. If you must control it from circuits in the output, use some form SMT Reflow Soldering Guidelines of optoisolation to the On/Off Control. This latter condition is unlikely because The surface-mount reflow solder profile shown below is suitable for SAC305 type lead- the device controlling the On/Off would have to remain powered on and not be free solders. This graph should be used only as a guideline. Many other factors influence powered from the converter. the success of SMT reflow soldering. Since your production environment may differ, CAUTION: While it is possible to control the On/Off with external logic if you please thoroughly review these guidelines with your process engineers. carefully observe the voltage levels, the preferred circuit is either an open drain/open collector transistor, a switch or a relay (which can thereupon be controlled by logic). CAUTION: Do not apply voltages to the On/Off pin when there is no input power voltage. Otherwise the converter may be permanently damaged. + Vcc ON/OFF CONTROL CONTROL -VIN Figure 7. Driving the On/Off Control Pin (suggested circuit) 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 blocking diodes are added in series with the Vout power lines or, a preferred solution is to use an OR-ing FET controller like the LM5050-1 High-Side & LM5051 Low-Side OR-ing FET Controller from TI. Starting the module into a pre-bias condition can cause permanent damage to the module. www.murata-ps.com/support MDC_UEI15W.C18 Page 15 of 17

UEI15 Series Isolated Wide Input Range 15-Watt DC-DC Converters Emissions Performance [3]Conducted Emissions Test Results Murata Power Solutions measures its products for radio frequency emissions against the EN 55022 and CISPR 22 standards. Passive resistance loads are employed and the output is set to the maximum voltage. If you set up your own emissions testing, make sure the output load is rated at continuous power while doing the tests. The recommended external input and output capacitors (if required) are included. Please refer to the fundamental switching frequency. All of this information is listed in the Product Specifi cations. An external discrete fi lter is installed and the circuit diagram is shown below. UEI15-050-Q12P-C EMI 15W Test Card Resistive 24Vdc in, 5Vout, 3Amps Load UUT V+ Black C1 C1 C1 C1 C1 C1 C1 C1 Vin + Vout + C1 C2 ReLsoisatdive L1 L2 inside a metal container V- Vin - Vout - Graph 1. Conducted emissions performance, CISPR/EN55022, Class B, full load, fi ltered Figure 8. Conducted Emissions Test Circuit [1]Conducted Emissions Parts List Reference Part Number Description Vendor L2 PE-62913 1mH, 6A Pulse L1 500uH,10A, MPS 500uH,10A Murata C1 Ceramic 2.2ufd, 100V Murata C2 Electrolytic Capacitor 33ufd, 100V Panasonic [2]Conducted Emissions Test Equipment Used Rohde & Schwarz EMI Test Receiver (9KHz – 1000MHz) ESPC Rohde & Schwarz Software ESPC-1 Ver. 2.20 HP11947A Transient Limiter (Agilent) Graph 1. Conducted emissions performance, OHMITE 25W – Resistor combinations CISPR/EN55022, Class B, full load, unfi ltered DC Source Power Supply – Kikisui Model PAD 55-6L [4]Layout Recommendations Most applications can use the fi ltering which is already installed inside the converter or with the addition of the recommended external capacitors. For greater emissions suppression, consider additional fi lter components and/or shielding. Emissions performance will depend on the user’s PC board layout, the chassis shielding environment and choice of external components. Please refer to Application Note GEAN02 for further discussion. Since many factors affect both the amplitude and spectra of emissions, we recommend using an engineer who is experienced at emissions suppression. www.murata-ps.com/support MDC_UEI15W.C18 Page 16 of 17

UEI15 Series Isolated Wide Input Range 15-Watt DC-DC Converters Vertical Wind Tunnel Murata Power Solutions employs a computer controlled custom-designed closed loop vertical wind tunnel, infrared video camera system, and test instrumentation for accurate airfl ow and heat dissipation analysis of power products. The system includes IR Transparent optical window Variable a precision low fl ow-rate anemometer, variable speed fan, power Unit under speed fan supply input and load controls, temperature gauges, and adjust- test (UUT) able heating element. IR Video The IR camera monitors the thermal performance of the Unit Camera Under Test (UUT) under static steady-state conditions. A special optical port is used which is transparent to infrared wavelengths. Both through-hole and surface mount converters are soldered down to a host carrier board for realistic heat absorption and spreading. Both longitudinal and transverse airfl ow studies are Heating possible by rotation of this carrier board since there are often element signifi cant differences in the heat dissipation in the two airfl ow Precision low-rate directions. The combination of adjustable airfl ow, adjustable anemometer ambient heat, and adjustable Input/Output currents and voltages 3” below UUT mean that a very wide range of measurement conditions can be studied. The collimator reduces the amount of turbulence adjacent Ambient to the UUT by minimizing airfl ow turbulence. Such turbulence temperature sensor infl uences the effective heat transfer characteristics and gives false readings. Excess turbulence removes more heat from some surfaces and less heat from others, possibly causing uneven Airflow overheating. collimator Both sides of the UUT are studied since there are different thermal gradients on each side. The adjustable heating element and fan, built-in Figure 9. Vertical Wind Tunnel temperature gauges, and no-contact IR camera mean that power supplies are tested in real-world conditions. This product is subject to the following operating requirements Murata Power Solutions, Inc. and the Life and Safety Critical Application Sales Policy: 129 Flanders Rd., Westborough, MA 01581 U.S.A. Refer to: http://www.murata-ps.com/requirements/ ISO 9001 and 14001 REGISTERED 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. Specifi cations are subject to change without n oti ce. © 2019 Murata Power Solutions, Inc. www.murata-ps.com/support MDC_UEI15W.C18 Page 17 of 17