UEE Series www.murata-ps.com Isolated, High-Density, Eighth-Brick DOSA Low Profile DC-DC Converters Output (V) Current (A) Nominal Input (V) 3.3 15 48 3.3 25 48 3.3 30 48 For efficient, fully isolated DC power in the smallest space, the UEE ope open frame DC-DC converter series fit in industry-standard “eighth bri brick” outline dimensions and mounting pins (on quarter-brick pinout) or surface mount option. Typical units FEATURES Interleaved synchronous rectification yields high efficiency over 90% 36 to 75 Vdc input range (48V nominal) Outstanding thermal performance and derating PRODUCT OVERVIEW Low profile 0.40" height with 0.9" x 2.3" outline dimensions Fully isolated, 2250 Vdc (BASIC) insulation Units are offered with a fixed output voltage and current up to 30 Amps. UEEs operate over a wide temperature range (up to +85°C at moderate airflow) with full rated power. Synchronous rectifier topology yields excellent efficiency. UEEs achieve these impressive mechanical and environmental specs while delivering excellent electrical performance in an industry standard DOSA compatible through-hole package or surface mount option. The unit is fully protected against input undervoltage, output overcurrent and short circuit. An on-board temperature sensor shuts down the converter if thermal limits are reached Industry standard DOSA eighth-brick pinout and package and surface mount (SMT) option Extensive self-protection and short circuit features On/Off control, trim and sense functions Fully protected against temperature and voltage limits RoHS-6 compliant and automatically restarts the converter when the fault is removed. An On/Off control input enables phased startup and shutdown in multi-voltage applications. UEEs include a Sense input to correct for ohmic losses. A trim input may be connected to a user’s adjustment potentiometer or trim resistors for output voltage calibration. UEEs include industry-standard safety certifications and BASIC I/O insulation provides input/ output isolation to 2250V. Radiation and conducted emission testing is performed to widely accepted EMC standards. UL/IEC 60950-1 and CAN/CSA C22.2 No. 609501, 2nd Edition safety approvals F1 +Vin (1) +Vout (8) Barrier External DC Power Source On/Off Control (2) Controller and Power Open = On Reference and Error Amplifier Trim (6) logic) -Vin (3) -Vout (4) Figure 1. Connection Diagram Typical topology is shown. Murata Power Solutions recommends an external fuse. For full details go to www.murata-ps.com/rohs www.murata-ps.com/support MDC_UEE_Series.C01 Page 1 of 29 UEE Series Isolated, High-Density, Eighth-Brick DOSA Low Profile DC-DC Converters PERFORMANCE SPECIFICATIONS SUMMARY AND ORDERING GUIDE Output Power (W) Input Ripple & Noise (mVp-p) Typ. Max. Regulation (max.) Line Load Model Family VOUT (V) IOUT (A) UEE-3.3/15-D48 3.3 15 50 50 70 ±0.1% ±0.1% 48 UEE-3.3/25-D48 3.3 25 82.5 30 60 ±0.1% ±0.2% 48 UEE-3.3/30-D48 3.3 30 99 30 60 ±0.1% ±0.2% 48 ➀ Please refer to the model number structure for additional ordering part numbers and options. ➁ All specifications are typical unless noted. General conditions for Specifications are +25 deg.C, Vin=nominal, Vout=nominal (no trim installed), full rated load. Adequate airflow must be supplied for extended testing under power. All models are tested and specified with external 1μF and 10 μF paralleled output capacitors and IIN, no load (mA) IIN, full load (A) 36-75 30 36-75 100 36-75 100 VIN Nom. Range (V) (V) Efficiency Min. Typ. Package Case Pinout 1.15 88% 90% C56 P32 2.29 88% 90% C56 P32 2.29 88% 90% C56 P32 no external input capacitor. All capacitors are low ESR types. Caps are layout dependent. These capacitors are necessary to accommodate our test equipment and may not be required in your applications. All models are stable and regulate within spec under no-load conditions. ➂ Some models are pending safety certification. PART NUMBER STRUCTURE U EE - 3.3 / 30 - D48 N M B H Lx - C Output Configuration: U = Unipolar/Single RoHS Hazardous Materials compliance C = RoHS6 (does not claim EU RoHS exemption 7b–lead in solder), standard Y = RoHS5 (with lead), optional, special quantity order Eighth-Brick Package Nominal Output Voltage Maximum Rated Output Current in Amps Input Voltage Range: D48 = 36-75V, 48V nominal Pin Length Option (Through-hole packages only) Blank = Standard pin length 0.180 inches (4.6mm) L1 = Pin length 0.110 inches (2.79mm) ➀ L2 = Pin length 0.145 inches (3.68mm) ➀ Conformal coating (optional) Blank = no coating, standard H = Coating added, optional, special quantity order (not available on SMT models) Baseplate (optional, not available on UEE-3.3/15-D48 models or SMT models) Blank = No baseplate, standard B = Baseplate installed, optional, special quantity order Surface Mount (SMT models cannot accept the baseplate) Blank = Thru-hole pin mount, no SMT M = Surface mount (MSL Rating 2a) ➁ On/Off Control Logic N = Negative logic, standard P = Positive logic, optional 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. www.murata-ps.com/support MDC_UEE_Series.C01 Page 2 of 29 UEE Series Isolated, High-Density, Eighth-Brick DOSA Low Profile DC-DC Converters FUNCTIONAL SPECIFICATIONS, UEE-3.3/15-D48 Conditions ➀ ABSOLUTE MAXIMUM RATINGS Input Voltage, Continuous Minimum Typical/Nominal 0 Operating or non-operating, 100 mS max. duration Input to output None, install external fuse Power on or off, referred to -Vin Input Voltage, Transient Isolation Voltage Input Reverse Polarity On/Off Remote Control Output Power 0 Maximum Units 80 Vdc 100 Vdc 2250 Vdc Vdc Vdc W None -0.8 0 13.5 50 Current-limited, no damage, 0 15 A short-circuit protected Storage Temperature Range Vin = Zero (no power) -55 125 °C Absolute maximums are stress ratings. Exposure of devices to greater than any of these conditions may adversely affect long-term reliability. Proper operation under conditions other than those listed in the Performance/Functional Specifications Table is not implied or recommended. Output Current Conditions ➀ ➂ INPUT Operating voltage range Recommended External Fuse Start-up threshold Undervoltage shutdown Overvoltage shutdown Reverse Polarity Protection Internal Filter Type Input current Full Load Conditions Low Line Inrush Transient Output in Short Circuit No Load Standby Mode (Off, UV, OT) Reflected (back) ripple current ➁ Fast blow Rising input voltage Falling input voltage 36 48 33 31 34 32 None None Pi None, install external fuse Vin = nominal Vin = minimum 1.15 1.53 0.01 72 30 4.6 Iout = minimum, unit = ON Measured at input with specified filter 75 10 35 33 Vdc A Vdc Vdc Vdc Vdc 1.18 1.58 0.03 100 50 10 30 A A A2-Sec. mA mA mA mA, P-P GENERAL and SAFETY Efficiency Isolation Isolation Voltage, input to output Isolation Voltage, input to baseplate Isolation Voltage, output to baseplate Insulation Safety Rating Isolation Resistance Isolation Capacitance Safety Calculated MTBF Vin = 48V, full load Vin = min, full load 88.0 88.0 No baseplate N/A N/A 2250 N/A N/A 90.0 90.0 % % Vdc Vdc Vdc basic 10 1000 Certified to UL-60950-1, CSA-C22.2 No.60950-1, IEC 60950-1, 2nd edition Per Telcordia SR-332, issue 1, class 3, ground fixed, Tcase = +25°C MΩ pF Yes Hours x 106 2.3 DYNAMIC CHARACTERISTICS Fixed Switching Frequency Startup Time Startup Time Dynamic Load Response Dynamic Load Peak Deviation 300 Power on to Vout regulated Remote ON to Vout regulated 50-75-50% load step, settling time to within ±1% of Vout same as above 330 360 10 10 KHz mS mS 220 300 μSec ±150 ±200 mV 1 1 13.5 2 Vdc Vdc mA 13.5 1 2 V V mA FEATURES and OPTIONS Remote On/Off Control ➃ “N” suffix: Negative Logic, ON state Negative Logic, OFF state Control Current “P” suffix: Positive Logic, ON state Positive Logic, OFF state Control Current BasePlate Conformal Coating ON=Ground pin or external voltage OFF=Pin open or external voltage sinking -0.8 2.5 ON=Pin open or external voltage OFF=Ground pin or external voltage sinking "B" suffix "H" suffix 2.5 -0.8 1 N/A optional www.murata-ps.com/support MDC_UEE_Series.C01 Page 3 of 29 UEE Series Isolated, High-Density, Eighth-Brick DOSA Low Profile DC-DC Converters FUNCTIONAL SPECIFICATIONS, UEE-3.3/15-D48 (CONT.) Conditions ➀ OUTPUT Minimum Typical/Nominal Maximum Units 0.0 49.5 50 W 3.267 -1 -10 3.7 3.30 3.333 +1 +10 5.1 Vdc % of Vset. % of Vnom. Vdc 0.0 15 No minimum load 22 15 A 26 A Hiccup technique, autorecovery within ±1.25% of Vout 1.97 3 A Output shorted to ground, no damage Continuous Current limiting Yes ±0.1 ±0.1 70 ±0.005 7500 10 % of Vout % of Vout mV pk-pk % of Vout./°C μF % of Vout Total Output Power Voltage Nominal Output Voltage Setting Accuracy Output Voltage Range Overvoltage Protection Current Output Current Range Minimum Load Current Limit Inception Short Circuit Short Circuit Current Short Circuit Duration (remove short for recovery) Short circuit protection method Regulation Line Regulation Load Regulation Ripple and Noise ➁ Temperature Coefficient Maximum Capacitive Loading Remote Sense Compliance No trim At 50% load User-adjustable Via magnetic feedback 98% of Vnom., after warmup Vin=min. to max., Vout=nom., Iout=nom. Iout=min. to max., Vin=48V 5 Hz- 20 MHz BW At all outputs Cap. ESR=<0.02Ω, full resistive load Sense connected at load 18 4.3 50 ±0.0046 0 MECHANICAL (Through Hole Models) Outline Dimensions (no baseplate) (Please refer to outline drawing) Outline Dimensions (with baseplate) C56 case LxWxH Weight 2.3x0.9x0.40 max. 58.4x22.9x10.16 2.3x0.9x0.50 58.4x22.9x12.7 1.09 31 N/A N/A 0.04 & 0.062 1.016&1.524 Copper alloy 100-299 10-31 Aluminum No baseplate No baseplate With baseplate With baseplate Through Hole Pin Diameter Through Hole Pin Material TH Pin Plating Metal and Thickness Nickel subplate Gold overplate Baseplate Material Inches mm Inches mm Ounces Grams Ounces Grams Inches mm μ-inches μ-inches ENVIRONMENTAL Operating Ambient Temperature Range Operating Case Temperature Storage Temperature Thermal Protection/Shutdown Electromagnetic Interference Conducted, EN55022/CISPR22 Relative humidity, non-condensing Altitude No Derating, 100 LFM, full power, vertical mount No derating Vin = Zero (no power) Measured in center External filter is required -40 -40 -55 115 To +85°C must derate -1%/1000 feet 10 -500 -152 °C °C °C °C 90 10,000 3048 Class %RH feet meters B RoHS rating Notes 125 85 115 125 135 ➀ Unless otherwise noted, all specifications are at nominal input voltage, nominal output voltage and full load. General conditions are +25˚ Celsius ambient temperature, near sea level altitude, natural convection airflow. All models are tested and specified with external parallel 1 μF and 10 μF multi-layer ceramic output capacitors. No external input capacitor is used. All capacitors are low-ESR types wired close to the converter. These capacitors are necessary for our test equipment and may not be needed in the user’s application. ➁ Input (back) ripple current is tested and specified over 5 Hz to 20 MHz bandwidth. Input filtering is Cbus=220 μF, Cin=33 μF and Lbus=12 μH. ➂ All models are stable and regulate to specification under no load. ➃ The Remote On/Off Control is referred to -Vin. For external transistor control, use open collector logic or equivalent. RoHS-6 ➄ NOTICE—Please use only this customer data sheet as product documentation when laying out your printed circuit boards and applying this product into your application. Do NOT use other materials as official documentation such as advertisements, product announcements, or website graphics. We strive to have all technical data in this customer data sheet highly accurate and complete. This customer data sheet is revision-controlled and dated. The latest customer data sheet revision is normally on our website (www.murata-ps.com) for products which are fully released to Manufacturing. Please be especially careful using any data sheets labeled “Preliminary” since data may change without notice. The pinout (Pxx) and case (Cxx) designations (typically P32 or C56) refer to a generic family of closely related information. It may not be a single pinout or unique case outline. Please be aware of small details which may affect your application and PC board layouts. Study the Mechanical Outline drawings, Input/Output Connection table and all footnotes very carefully. Please contact Murata Power Solutions if you have any questions. www.murata-ps.com/support MDC_UEE_Series.C01 Page 4 of 29 UEE Series Isolated, High-Density, Eighth-Brick DOSA Low Profile DC-DC Converters TYPICAL PERFORMANCE DATA AND OSCILLOGRAMS, UEE-3.3/15-D48 UEE-3.3/15-D48 Efficiency and Power Dissipation @ Ta = +25°C 95 9 16 90 8 14 85 7 75 70 5 4 65 3 60 2 Power Dissipation (Vin = 48V) 55 10 8 6 4 2 0 30 35 40 45 50 55 60 65 70 75 80 85 Ambient Temperature (ºC) 1 50 Output Current (A) 6 Vin = 75V Vin = 48V Vin = 36V 100 to 400 LFM 12 Power Dissipation (Watts) 80 Efficiency (%) UEE-3.3/15-D48 Maximum Current Temperature Derating at Sea Level (Vin = 48V, no baseplate, airflow is from Vin to Vout) 0 1 3 5 7 9 11 15 13 Load Current (A) UEE-3.3/15-D48 Maximum Current Temperature Derating at Sea Level (Vin = 48V, no baseplate, airflow is from –Vin to +Vin) Step Load Transient Response (Vin=48V, Vout=nominal, Cload=0, Iout=75% to 50% of full load, Ta=+25˚C.) Trace 1=Vout, 100 mV/div., 500 μS/div. 16 14 100 to 400 LFM Output Current (A) 12 10 8 6 4 2 0 30 35 40 45 50 55 60 65 70 75 80 85 Ambient Temperature (ºC) Step Load Transient Response (Vin=48V, Vout=nominal, Cload=0, Iout=50% to 75% of full Step Load Transient Response (Vin=48V, Vout=nominal, Cload=0, Iout=50 to 75 to 50% of load, Ta=+25˚C.) Trace 1=Vout, 100 mV/div., 500 μS/div. full load, Ta=+25˚C.) Trace 1=Vout, 100 mV/div., 2 mS/div. www.murata-ps.com/support MDC_UEE_Series.C01 Page 5 of 29 UEE Series Isolated, High-Density, Eighth-Brick DOSA Low Profile DC-DC Converters TYPICAL PERFORMANCE DATA AND OSCILLOGRAMS, UEE-3.3/15-D48 Power On Start Up (Vin=48V, Vout=nom., Iout=15A, Cload=0, Ta=+25° C., ScopeBW=20Mhz, Trace 2=Vout, Trace 4=Enable. Power On Start Up (Vin=48V, Vout=nom., Iout=0A, Cload=0, Ta=+25° C., ScopeBW=20Mhz, Trace 2=Vout, Trace 4=Enable Power On Start Up (Vin=48V, Vout=nom., Iout=15A, Cload=7500uF, Ta=+25° C., ScopeBW=20Mhz, Trace 2=Vout, Trace 4=Enable Output Ripple and noise (Vin=48V, Vout=nom., Iout=15A, Cload=0, Ta=+25° C., ScopeBW=20Mhz) Output Ripple and noise (Vin=48V, Vout=nom., Iout=0A, Cload=0, Ta=+25° C., ScopeBW=20Mhz) Thermal image with hot spot at full load current with 85 °C ambient; air is flowing at 100 LFM. Air is flowing across the converter from -Vin to +Vin at 48V input. Identifiable and recommended maximum value to be verified in application. Q9, Max temp= 120 °C/IPC9592 derating guidelines. www.murata-ps.com/support MDC_UEE_Series.C01 Page 6 of 29 UEE Series Isolated, High-Density, Eighth-Brick DOSA Low Profile DC-DC Converters Emissions Performance, Model UEE-3.3/15-D48 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. [3] Conducted Emissions Test Results 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 Specifications. An external discrete filter is installed and the circuit diagram is shown below. L1 LISN External DC Power Source + C1 C2 C3 UNIT UNDER TEST Return + C6 LOAD -Vsource NEG. LINE POS. LINE C4 C5 Graph 1. Conducted emissions performance, Positive Line, CISPR 22, Class A, full load DC/DC Converter Ground Spectrum Analyzer Figure 2. Conducted Emissions Test Circuit [1] Conducted Emissions Parts List Designation Value C1 C2 L1 C4, C5 C3 C6 Part Number Description Vendor SMD Ceramic, 100V, 1000nF, Murata X7R-1210 SMD Ceramic, 100V, 100nF 100 nF GRM319R72A104KA01D Murata ±10%, X7R-1206 Common Mode choke, 1320 μH LB16H1324 1320 μH, ±25%, 4A, R5K, High Light *21*21*12.5mm SMD Ceramic, 1000V, 0.022 0.022 μF GRM32DR73A223KW01L Murata μF, ±10%, X7R-1210 Alum. electrolytic, 100V, 220 220 μF UHE2A221MHD Nichicon μF, ±10%, long lead Not used Not used for this model 1 μF GRM32ER72A105KA01L [2] Conducted Emissions Test Equipment Used Graph 2. Conducted emissions performance, Negative Line, CISPR 22, Class A, full load Spectrum Analyzer – Hewlett Packard HP8594L Line Impedance Stabilization Network (LISN) – 2 Line V-Networks LS1-15V, 50 Ω, 50 μH [4] Layout Recommendations Most applications can use the filtering which is already installed inside the converter or with the addition of the recommended external capacitors. For greater emissions suppression, consider additional filter 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_UEE_Series.C01 Page 7 of 29 UEE Series Isolated, High-Density, Eighth-Brick DOSA Low Profile DC-DC Converters FUNCTIONAL SPECIFICATIONS, UEE-3.3/25-D48 Conditions ➀ ABSOLUTE MAXIMUM RATINGS Input Voltage, Continuous Minimum Typical/Nominal 0 Operating or non-operating, 100 mS max. duration Input to output None, install external fuse Power on or off, referred to -Vin Input Voltage, Transient Isolation Voltage Input Reverse Polarity On/Off Remote Control Output Power 0 Maximum Units 80 Vdc 100 Vdc 2250 Vdc Vdc Vdc W None 0 0 13.5 83.3 Current-limited, no damage, 0 25 A short-circuit protected Storage Temperature Range Vin = Zero (no power) -55 125 °C Absolute maximums are stress ratings. Exposure of devices to greater than any of these conditions may adversely affect long-term reliability. Proper operation under conditions other than those listed in the Performance/Functional Specifications Table is not implied or recommended. Output Current Conditions ➀ ➂ INPUT Operating voltage range Recommended External Fuse Start-up threshold Undervoltage shutdown Overvoltage shutdown Reverse Polarity Protection Internal Filter Type Input current Full Load Conditions Low Line Inrush Transient Output in Short Circuit No Load Standby Mode (Off, UV, OT) Reflected (back) ripple current ➁ Fast blow Rising input voltage Falling input voltage 36 48 33 31 34 32 None None Pi None, install external fuse Vin = nominal Vin = minimum 2.29 3.06 0.05 150 100 5 Iout = minimum, unit = ON Measured at input with specified filter 75 10 35 33 Vdc A Vdc Vdc Vdc Vdc 2.37 3.16 0.6 300 150 10 30 A A A2-Sec. mA mA mA mA, P-P GENERAL and SAFETY Efficiency Isolation Isolation Voltage, input to output Isolation Voltage, input to baseplate Isolation Voltage, output to baseplate Insulation Safety Rating Isolation Resistance Isolation Capacitance Safety Calculated MTBF Vin = 48V, full load Vin = min, full load 88.0 88.0 No baseplate With baseplate With baseplate 2250 1500 1500 90.0 90.0 % % Vdc Vdc Vdc basic 10 1000 Certified to UL-60950-1, CSA-C22.2 No.60950-1, IEC 60950-1, 2nd edition Per Telcordia SR-332, issue 1, class 3, ground fixed, Tcase = +25°C MΩ pF Yes Hours x 106 2.5 DYNAMIC CHARACTERISTICS Fixed Switching Frequency Startup Time Startup Time Dynamic Load Response Dynamic Load Peak Deviation 320 Power on to Vout regulated Remote ON to Vout regulated 50-75-50% load step, settling time to within ±1% of Vout same as above 350 380 10 10 KHz mS mS 150 300 μSec ±150 ±200 mV 1 1 13.5 2 Vdc Vdc mA 13.5 1 2 V V mA FEATURES and OPTIONS Remote On/Off Control ➃ “N” suffix: Negative Logic, ON state Negative Logic, OFF state Control Current “P” suffix: Positive Logic, ON state Positive Logic, OFF state Control Current Base Plate Conformal Coating ON=Ground pin or external voltage OFF=Pin open or external voltage sinking -0.8 2.5 ON=Pin open or external voltage OFF=Ground pin or external voltage sinking "B" suffix "H" suffix 2.5 -0.8 1 optional optional www.murata-ps.com/support MDC_UEE_Series.C01 Page 8 of 29 UEE Series Isolated, High-Density, Eighth-Brick DOSA Low Profile DC-DC Converters FUNCTIONAL SPECIFICATIONS, UEE-3.3/25-D48 (CONT.) Conditions ➀ OUTPUT Minimum Typical/Nominal Maximum Units 0.0 82.5 83.3 W 3.267 -1 -10 3.7 3.30 3.333 +1 +10 4.9 Vdc % of Vset. % of Vnom. Vdc 0.0 25 No minimum load 31 25 A 34 A Hiccup technique, autorecovery within ±1.25% of Vout 3 4 A Output shorted to ground, no damage Continuous Current limiting Yes ±0.1 ±0.2 60 % of Vout % of Vout mV pk-pk % of Vout./°C μF % of Vout Total Output Power Voltage Nominal Output Voltage Setting Accuracy Output Voltage Range Overvoltage Protection Current Output Current Range Minimum Load Current Limit Inception Short Circuit Short Circuit Current Short Circuit Duration (remove short for recovery) Short circuit protection method Regulation Line Regulation Load Regulation Ripple and Noise ➁ Temperature Coefficient Maximum Capacitive Loading Remote Sense Compliance No trim At 50% load User-adjustable Via magnetic feedback 98% of Vnom., after warmup Vin=min. to max., Vout=nom., Iout=nom. Iout=min. to max., Vin=48V 5 Hz- 20 MHz BW At all outputs Cap. ESR=<0.02Ω, full resistive load Sense connected at load 28 4 30 0.02 0 10,000 10 MECHANICAL (Through Hole Models) Outline Dimensions (no baseplate) (Please refer to outline drawing) Outline Dimensions (with baseplate) C56 case LxWxH Weight 2.3x0.9x0.40 max. 58.4x22.9x10.16 2.3x0.9x0.50 58.4x22.9x12.7 1.09 31 TBD TBD 0.04 & 0.062 1.016&1.524 Copper alloy 100-299 10-31 Aluminum No baseplate No baseplate With baseplate With baseplate Through Hole Pin Diameter Through Hole Pin Material TH Pin Plating Metal and Thickness Nickel subplate Gold overplate Baseplate Material Inches mm Inches mm Ounces Grams Ounces Grams Inches mm μ-inches μ-inches ENVIRONMENTAL Operating Ambient Temperature Range Operating Case Temperature Storage Temperature Thermal Protection/Shutdown Electromagnetic Interference Conducted, EN55022/CISPR22 Relative humidity, non-condensing Altitude No Derating, 100 LFM, full power, vertical mount No derating Vin = Zero (no power) Measured in center External filter is required -40 -40 -55 115 To +85°C must derate -1%/1000 feet 10 -500 -152 °C °C °C °C 90 10,000 3048 Class %RH feet meters B RoHS rating Notes 125 85 125 125 135 ➀ Unless otherwise noted, all specifications are at nominal input voltage, nominal output voltage and full load. General conditions are +25˚ Celsius ambient temperature, near sea level altitude, natural convection airflow. All models are tested and specified with external parallel 1 μF and 10 μF multi-layer ceramic output capacitors. No external input capacitor is used. All capacitors are low-ESR types wired close to the converter. These capacitors are necessary for our test equipment and may not be needed in the user’s application. ➁ Input (back) ripple current is tested and specified over 5 Hz to 20 MHz bandwidth. Input filtering is Cbus=220 μF, Cin=33 μF and Lbus=12 μH. ➂ All models are stable and regulate to specification under no load. ➃ The Remote On/Off Control is referred to -Vin. For external transistor control, use open collector logic or equivalent. RoHS-6 ➄ NOTICE—Please use only this customer data sheet as product documentation when laying out your printed circuit boards and applying this product into your application. Do NOT use other materials as official documentation such as advertisements, product announcements, or website graphics. We strive to have all technical data in this customer data sheet highly accurate and complete. This customer data sheet is revision-controlled and dated. The latest customer data sheet revision is normally on our website (www.murata-ps.com) for products which are fully released to Manufacturing. Please be especially careful using any data sheets labeled “Preliminary” since data may change without notice. The pinout (Pxx) and case (Cxx) designations (typically P32 or C56) refer to a generic family of closely related information. It may not be a single pinout or unique case outline. Please be aware of small details which may affect your application and PC board layouts. Study the Mechanical Outline drawings, Input/Output Connection table and all footnotes very carefully. Please contact Murata Power Solutions if you have any questions. www.murata-ps.com/support MDC_UEE_Series.C01 Page 9 of 29 UEE Series Isolated, High-Density, Eighth-Brick DOSA Low Profile DC-DC Converters TYPICAL PERFORMANCE DATA AND OSCILLOGRAMS, UEE-3.3/25-D48 UEE-3.3/25-D48 Maximum Current Temperature Derating at Sea Level (Vin = 48V, no baseplate. Airflow direction is longitudinal, from Vin to Vout.) UEE-3.3/25-D48 Efficiency and Power Dissipation @ Ta = +25°C 15 100 13 12 85 11 10 Vin = 75V Vin = 48V Vin = 36V 80 75 30 9 8 7 70 6 65 5 4 60 Power Dissipation (Vin = 48V) 55 Output Current (A) 90 Power Dissipation (Watts) Efficiency (%) 40 14 95 20 100 LFM 200 LFM 300 LFM 400 LFM 10 0 30 3 35 40 45 50 50 55 60 65 70 75 80 85 Ambient Temperature (ºC) 2 1 3 6 9 12 15 18 21 24 Load Current (A) UEE-3.3/25-D48 Maximum Current Temperature Derating at Sea Level (Vin = 48V, with baseplate. Airflow direction is from Vin to Vout.) UEE-3.3/25-D48 Maximum Current Temperature Derating at Sea Level (Vin = 48V, with baseplate. Airflow direction is transverse from +Vin to -Vin.) 30 40 30 20 Output Current (A) Output Current (A) 25 100 LFM 200 LFM 300 LFM 400 LFM 15 10 5 30 35 40 45 50 55 60 65 70 75 80 20 10 0 85 100 LFM 200 LFM 300 LFM 400 LFM 30 35 40 45 Ambient Temperature (ºC) 55 60 65 70 75 80 85 UEE-3.3/25-D48 Maximum Current Temperature Derating at Sea Level (Vin = 48V, no baseplate. Airflow direction is transverse.) 40 30 30 25 Output Current (A) Output Current (A) UEE-3.3/25-D48 Maximum Current Temperature Derating at Sea Level (Vin = 48V, no baseplate. Airflow direction is transverse.) 20 100 LFM 200 LFM 300 LFM 400 LFM 10 50 Ambient Temperature (ºC) 20 Natural Convection 100 LFM 200 LFM 300 LFM 400 LFM 15 10 0 30 35 40 45 50 55 60 65 Ambient Temperature (ºC) 70 75 80 85 30 35 40 45 50 55 60 65 70 75 80 85 Ambient Temperature (ºC) www.murata-ps.com/support MDC_UEE_Series.C01 Page 10 of 29 UEE Series Isolated, High-Density, Eighth-Brick DOSA Low Profile DC-DC Converters TYPICAL PERFORMANCE DATA AND OSCILLOGRAMS, UEE-3.3/25-D48 Step Load Transient Response (Slew=1A / μSec.,Vin=48V., Cload=0, Iout=22.5A to 15A) Step Load Transient Response (Slew=1A / μSec.,Vin=48V., Cload=0, Iout=15A to 22.5A) On/Off Enable Delay (Vin=48V, Vout=nom., Iout=25A, Cload=0, Ta=+25° C., ScopeBW=20Mhz, Trace 2=Vout, Trace 4=Enable. On/Off Enable Delay (Vin=48V, Vout=nom., Iout=0A, Cload=0, Ta=+25° C., ScopeBW=20Mhz, Trace 2=Vout, Trace 4=Enable. On/Off Enable Delay (Vin=48V, Vout=nom., Iout=25A, Cload=10uF, Ta=+25° C., ScopeBW=20Mhz, Trace 2=Vout, Trace 4=Enable. www.murata-ps.com/support MDC_UEE_Series.C01 Page 11 of 29 UEE Series Isolated, High-Density, Eighth-Brick DOSA Low Profile DC-DC Converters TYPICAL PERFORMANCE DATA AND OSCILLOGRAMS, UEE-3.3/25-D48 Output Ripple and noise (Vin=48V, Vout=nom., Iout=25A, Cload=0, Ta=+25° C., ScopeBW=20Mhz) Output Ripple and noise (Vin=48V, Vout=nom., Iout=25A, Cload=0, Ta=+25° C., ScopeBW=20Mhz) Thermal image with hot spot at full load current with 85 °C ambient; air is flowing at 200 LFM. Air is flowing across the converter from Vin to Vout at 48V input. Identifiable and recommended maximum value to be verified in application. T1 & Q1, Max temp= 120 °C/IPC9592 derating guidelines. www.murata-ps.com/support MDC_UEE_Series.C01 Page 12 of 29 UEE Series Isolated, High-Density, Eighth-Brick DOSA Low Profile DC-DC Converters Emissions Performance, Model UEE-3.3/25-D48 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. [3] Conducted Emissions Test Results 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 Specifications. An external discrete filter is installed and the circuit diagram is shown below. L1 LISN External DC Power Source + C1 C2 C3 UNIT UNDER TEST Return + C6 LOAD -Vsource NEG. LINE POS. LINE C4 C5 Graph 3. Conducted emissions performance, Positive Line, CISPR 22, Class A, full load DC/DC Converter Ground Spectrum Analyzer Figure 3. Conducted Emissions Test Circuit [1] Conducted Emissions Parts List Designation Value C1 C2 L1 C4, C5 C3 C6 Part Number Description Vendor SMD Ceramic, 100V, 1000nF, Murata X7R-1210 SMD Ceramic, 100V, 100nF 100 nF GRM319R72A104KA01D Murata ±10%, X7R-1206 Common Mode choke, 1320 μH LB16H1324 1320 μH, ±25%, 4A, R5K, High Light *21*21*12.5mm SMD Ceramic, 1000V, 0.022 0.022 μF GRM32DR73A223KW01L Murata μF, ±10%, X7R-1210 Alum. electrolytic, 100V, 220 220 μF UHE2A221MHD Nichicon μF, ±10%, long lead Not used Not used for this model 1 μF GRM32ER72A105KA01L [2] Conducted Emissions Test Equipment Used Graph 4. Conducted emissions performance, Negative Line, CISPR 22, Class A, full load Spectrum Analyzer – Hewlett Packard HP8594L Line Impedance Stabilization Network (LISN) – 2 Line V-Networks LS1-15V, 50 Ω, 50 μH [4] Layout Recommendations Most applications can use the filtering which is already installed inside the converter or with the addition of the recommended external capacitors. For greater emissions suppression, consider additional filter 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_UEE_Series.C01 Page 13 of 29 UEE Series Isolated, High-Density, Eighth-Brick DOSA Low Profile DC-DC Converters FUNCTIONAL SPECIFICATIONS, UEE-3.3/30-D48 Conditions ➀ ABSOLUTE MAXIMUM RATINGS Input Voltage, Continuous Minimum Typical/Nominal 0 Operating or non-operating, 100 mS max. duration Input to output None, install external fuse Power on or off, referred to -Vin Input Voltage, Transient Isolation Voltage Input Reverse Polarity On/Off Remote Control Output Power 0 Maximum Units 80 Vdc 100 Vdc 2250 Vdc Vdc Vdc W None 0 0 13.5 100 Current-limited, no damage, 0 30 A short-circuit protected Storage Temperature Range Vin = Zero (no power) -55 125 °C Absolute maximums are stress ratings. Exposure of devices to greater than any of these conditions may adversely affect long-term reliability. Proper operation under conditions other than those listed in the Performance/Functional Specifications Table is not implied or recommended. Output Current Conditions ➀ ➂ INPUT Operating voltage range Recommended External Fuse Start-up threshold Undervoltage shutdown Overvoltage shutdown Reverse Polarity Protection Internal Filter Type Input current Full Load Conditions Low Line Inrush Transient Output in Short Circuit No Load Standby Mode (Off, UV, OT) Reflected (back) ripple current ➁ Fast blow Rising input voltage Falling input voltage 36 48 33 31 34 32 None None Pi None, install external fuse Vin = nominal Vin = minimum 2.29 3.06 0.05 150 100 5 Iout = minimum, unit = ON Measured at input with specified filter 75 10 35 33 Vdc A Vdc Vdc Vdc Vdc 2.37 3.16 0.6 300 150 10 30 A A A2-Sec. mA mA mA mA, P-P GENERAL and SAFETY Efficiency Isolation Isolation Voltage, input to output Isolation Voltage, input to baseplate Isolation Voltage, output to baseplate Insulation Safety Rating Isolation Resistance Isolation Capacitance Safety Calculated MTBF Vin = 48V, full load Vin = min, full load 88.0 88.0 No baseplate With baseplate With baseplate 2250 1500 1500 90.0 90.0 % % Vdc Vdc Vdc basic 10 1000 Certified to UL-60950-1, CSA-C22.2 No.60950-1, IEC 60950-1, 2nd edition Per Telcordia SR-332, issue 1, class 3, ground fixed, Tcase = +25°C MΩ pF Yes Hours x 106 2.5 DYNAMIC CHARACTERISTICS Fixed Switching Frequency Startup Time Startup Time Dynamic Load Response Dynamic Load Peak Deviation 320 Power on to Vout regulated Remote ON to Vout regulated 50-75-50% load step, settling time to within ±1% of Vout same as above 350 380 10 10 KHz mS mS 150 300 μSec ±150 ±200 mV 1 1 13.5 2 Vdc Vdc mA 13.5 1 2 V V mA FEATURES and OPTIONS Remote On/Off Control ➃ “N” suffix: Negative Logic, ON state Negative Logic, OFF state Control Current “P” suffix: Positive Logic, ON state Positive Logic, OFF state Control Current Base Plate Conformal Coating ON=Ground pin or external voltage OFF=Pin open or external voltage sinking -0.8 2.5 ON=Pin open or external voltage OFF=Ground pin or external voltage sinking "B" suffix "H" suffix 2.5 -0.8 1 optional optional www.murata-ps.com/support MDC_UEE_Series.C01 Page 14 of 29 UEE Series Isolated, High-Density, Eighth-Brick DOSA Low Profile DC-DC Converters FUNCTIONAL SPECIFICATIONS, UEE-3.3/30-D48 (CONT.) Conditions ➀ OUTPUT Minimum Typical/Nominal Maximum Units 0.0 99 100 W 3.267 -1 -10 3.7 3.30 3.333 +1 +10 4.9 Vdc % of Vset. % of Vnom. Vdc 0.0 30.0 No minimum load 42 30.0 A 49 A Hiccup technique, autorecovery within ±1.25% of Vout 3 4 A Output shorted to ground, no damage Continuous Current limiting Yes ±0.1 ±0.2 60 % of Vout % of Vout mV pk-pk % of Vout./°C μF % of Vout Total Output Power Voltage Nominal Output Voltage Setting Accuracy Output Voltage Range Overvoltage Protection Current Output Current Range Minimum Load Current Limit Inception Short Circuit Short Circuit Current Short Circuit Duration (remove short for recovery) Short circuit protection method Regulation Line Regulation Load Regulation Ripple and Noise ➁ Temperature Coefficient Maximum Capacitive Loading Remote Sense Compliance No trim At 50% load User-adjustable Via magnetic feedback 98% of Vnom., after warmup Vin=min. to max., Vout=nom., Iout=nom. Iout=min. to max., Vin=48V 5 Hz- 20 MHz BW At all outputs Cap. ESR=<0.02Ω, full resistive load Sense connected at load 35 4 30 0.02 0 10,000 10 MECHANICAL (Through Hole Models) Outline Dimensions (no baseplate) (Please refer to outline drawing) Outline Dimensions (with baseplate) C56 case LxWxH Weight 2.3x0.9x0.40 max. 58.4x22.9x10.16 2.3x0.9x0.50 58.4x22.9x12.7 1.09 31 TBD TBD 0.04 & 0.062 1.016&1.524 Copper alloy 100-299 10-31 Aluminum No baseplate No baseplate With baseplate With baseplate Through Hole Pin Diameter Through Hole Pin Material TH Pin Plating Metal and Thickness Nickel subplate Gold overplate Baseplate Material Inches mm Inches mm Ounces Grams Ounces Grams Inches mm μ-inches μ-inches ENVIRONMENTAL Operating Ambient Temperature Range Operating Case Temperature Storage Temperature Thermal Protection/Shutdown Electromagnetic Interference Conducted, EN55022/CISPR22 Relative humidity, non-condensing Altitude No Derating, 100 LFM, full power, vertical mount No derating Vin = Zero (no power) Measured in center External filter is required -40 -40 -55 115 To +85°C must derate -1%/1000 feet 10 -500 -152 °C °C °C °C 90 10,000 3048 Class %RH feet meters B RoHS rating Notes 125 85 125 125 135 ➀ Unless otherwise noted, all specifications are at nominal input voltage, nominal output voltage and full load. General conditions are +25˚ Celsius ambient temperature, near sea level altitude, natural convection airflow. All models are tested and specified with external parallel 1 μF and 10 μF multi-layer ceramic output capacitors. No external input capacitor is used. All capacitors are low-ESR types wired close to the converter. These capacitors are necessary for our test equipment and may not be needed in the user’s application. ➁ Input (back) ripple current is tested and specified over 5 Hz to 20 MHz bandwidth. Input filtering is Cbus=220 μF, Cin=33 μF and Lbus=12 μH. ➂ All models are stable and regulate to specification under no load. ➃ The Remote On/Off Control is referred to -Vin. For external transistor control, use open collector logic or equivalent. RoHS-6 ➄ NOTICE—Please use only this customer data sheet as product documentation when laying out your printed circuit boards and applying this product into your application. Do NOT use other materials as official documentation such as advertisements, product announcements, or website graphics. We strive to have all technical data in this customer data sheet highly accurate and complete. This customer data sheet is revision-controlled and dated. The latest customer data sheet revision is normally on our website (www.murata-ps.com) for products which are fully released to Manufacturing. Please be especially careful using any data sheets labeled “Preliminary” since data may change without notice. The pinout (Pxx) and case (Cxx) designations (typically P32 or C56) refer to a generic family of closely related information. It may not be a single pinout or unique case outline. Please be aware of small details which may affect your application and PC board layouts. Study the Mechanical Outline drawings, Input/Output Connection table and all footnotes very carefully. Please contact Murata Power Solutions if you have any questions. www.murata-ps.com/support MDC_UEE_Series.C01 Page 15 of 29 UEE Series Isolated, High-Density, Eighth-Brick DOSA Low Profile DC-DC Converters TYPICAL PERFORMANCE DATA AND OSCILLOGRAMS, UEE-3.3/30-D48 UEE-3.3/30-D48 Maximum Current Temperature Derating at Sea Level (Vin = 48V, no baseplate. Airflow direction is longitudinal, from Vin to Vout.) UEE-3.3/30-D48 Efficiency and Power Dissipation @ Ta = +25°C 15 100 13 12 85 11 10 Vin = 75V Vin = 48V Vin = 36V 80 75 30 9 8 7 70 6 65 5 4 60 Power Dissipation (Vin = 48V) 55 Output Current (A) 90 Power Dissipation (Watts) Efficiency (%) 40 14 95 20 100 LFM 200 LFM 300 LFM 400 LFM 10 0 30 3 35 40 45 50 50 55 60 65 70 75 80 85 Ambient Temperature (ºC) 2 1 3 6 9 12 15 18 21 24 27 30 Load Current (A) UEE-3.3/30-D48 Maximum Current Temperature Derating at Sea Level (Vin = 48V, with baseplate. Airflow direction is from Vin to Vout.) UEE-3.3/30-D48 Maximum Current Temperature Derating at Sea Level (Vin = 48V, with baseplate. Airflow direction is transverse from +Vin to -Vin.) 30 40 30 Output Current (A) Output Current (A) 25 100 LFM 200 LFM 300 LFM 400 LFM 20 15 10 5 30 35 40 45 50 55 60 65 70 75 80 85 Ambient Temperature (ºC) 100 LFM 200 LFM 300 LFM 400 LFM 20 10 0 30 35 40 45 50 55 60 65 70 75 80 85 Ambient Temperature (ºC) UEE-3.3/30-D48 Maximum Current Temperature Derating at Sea Level (Vin = 48V, no baseplate. Airflow direction is transverse.) Step Load Transient Response (Slew=1A / μSec.,Vin=48V., Cload=0, Iout=15A to 22.5A) 40 Output Current (A) 30 20 100 LFM 200 LFM 300 LFM 400 LFM 10 0 30 35 40 45 50 55 60 65 70 75 80 85 Ambient Temperature (ºC) www.murata-ps.com/support MDC_UEE_Series.C01 Page 16 of 29 UEE Series Isolated, High-Density, Eighth-Brick DOSA Low Profile DC-DC Converters TYPICAL PERFORMANCE DATA AND OSCILLOGRAMS, UEE-3.3/30-D48 Step Load Transient Response (Slew=1A / μSec.,Vin=48V., Cload=0, Iout=22.5A to 15A) On/Off Enable Delay (Vin=48V, Vout=nom., Iout=30A, Cload=0, Ta=+25° C., ScopeBW=20Mhz, Trace 2=Vout, Trace 4=Enable. On/Off Enable Delay (Vin=48V, Vout=nom., Iout=0A, Cload=0, Ta=+25° C., ScopeBW=20Mhz, Trace 2=Vout, Trace 4=Enable. On/Off Enable Delay (Vin=48V, Vout=nom., Iout=30A, Cload=10uF, Ta=+25° C., ScopeBW=20Mhz, Trace 2=Vout, Trace 4=Enable. Output Ripple and noise (Vin=48V, Vout=nom., Iout=30A, Cload=0, Ta=+25° C., ScopeBW=20Mhz) Output Ripple and noise (Vin=48V, Vout=nom., Iout=30A, Cload=0, Ta=+25° C., ScopeBW=20Mhz) www.murata-ps.com/support MDC_UEE_Series.C01 Page 17 of 29 UEE Series Isolated, High-Density, Eighth-Brick DOSA Low Profile DC-DC Converters TYPICAL PERFORMANCE DATA AND OSCILLOGRAMS, UEE-3.3/30-D48 Thermal image with hot spot at full load current with 85 °C ambient; air is flowing at 200 LFM. Air is flowing across the converter from Vin to Vout at 48V input. Identifiable and recommended maximum value to be verified in application. T1 & Q1, Max temp= 120 °C/IPC9592 derating guidelines. www.murata-ps.com/support MDC_UEE_Series.C01 Page 18 of 29 UEE Series Isolated, High-Density, Eighth-Brick DOSA Low Profile DC-DC Converters Emissions Performance, Model UEE-3.3/30-D48 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. [3] Conducted Emissions Test Results 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 Specifications. An external discrete filter is installed and the circuit diagram is shown below. L1 LISN External DC Power Source + C1 C2 C3 UNIT UNDER TEST Return + C6 LOAD -Vsource NEG. LINE POS. LINE C4 C5 Graph 5. Conducted emissions performance, Positive Line, CISPR 22, Class A, full load DC/DC Converter Ground Spectrum Analyzer Figure 4. Conducted Emissions Test Circuit [1] Conducted Emissions Parts List Designation Value C1 C2 L1 C4, C5 C3 C6 Part Number Description Vendor SMD Ceramic, 100V, 1000nF, Murata X7R-1210 SMD Ceramic, 100V, 100nF 100 nF GRM319R72A104KA01D Murata ±10%, X7R-1206 Common Mode choke, 1320 μH LB16H1324 1320 μH, ±25%, 4A, R5K, High Light *21*21*12.5mm SMD Ceramic, 1000V, 0.022 0.022 μF GRM32DR73A223KW01L Murata μF, ±10%, X7R-1210 Alum. electrolytic, 100V, 220 220 μF UHE2A221MHD Nichicon μF, ±10%, long lead Not used Not used for this model 1 μF GRM32ER72A105KA01L [2] Conducted Emissions Test Equipment Used Graph 6. Conducted emissions performance, Negative Line, CISPR 22, Class A, full load Spectrum Analyzer – Hewlett Packard HP8594L Line Impedance Stabilization Network (LISN) – 2 Line V-Networks LS1-15V, 50 Ω, 50 μH [4] Layout Recommendations Most applications can use the filtering which is already installed inside the converter or with the addition of the recommended external capacitors. For greater emissions suppression, consider additional filter 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_UEE_Series.C01 Page 19 of 29 UEE Series Isolated, High-Density, Eighth-Brick DOSA Low Profile DC-DC Converters MECHANICAL SPECIFICATIONS (THROUGH-HOLE MOUNT) TOP VIEW TOP VIEW Package C56 2.30 (58.4) 0.90 (22.9) 0.90 (22.9) 0.600 (15.24) 2.30 (58.4) M3-6H TYP 2PL 2.000 (50.8) WITH BASEPLATE OPTION (Baseplate not available for UEE-3.3/15-D48 models.) OPEN FRAME (NO BASEPLATE) 0.40 (10.16) Max SIDE VIEW L PINS 1-3, 5-7: φ0.040±0.001(1.016±0.025) PINS 4,8: φ0.062±0.001(1.575±0.025) 1 8 0.600 (15.24) 6 7 0.600 (15.24) 2 5 2 Standard pin length is shown. Please refer to the part number structure for alternate pin lengths. DOSA-Compatible INPUT/OUTPUT CONNECTIONS Pin Function P32 1 Positive Input 2 On/Off Control 3 Negative Input 4 Negative Output 5 Negative Sense 6 Output Trim 7 Positive Sense 8 Positive Output 6 7 1 BOTTOM PIN SIDE VIEW ➀ M3 bolts must not exceed 0.118˝ (3.0mm) depth below the baseplate surface. ➁ Applied screw torque must not exceed 5.3 in-lb. (0.6 N-m). 4 3 0.300 (7.62) 5 0.300 (7.62) 4 3 0.600 (15.24) 2.000 (50.8) 0.18 (4.6) 2.000 (50.8) 0.600 (15.24) 0.015 minimum clearance between standoffs and highest component 0.50 (12.7) Max PIN Shoulder 1-3, 5-7: φ0.091±0.003(2.31±0.076) PIN Shoulder 4,8: φ0.110±0.003(2.79±0.076) 0.136 (3.45) ±0.005 PIN Shoulder 1-3, 5-7: φ0.091±0.003(2.31±0.076) PIN Shoulder 4,8: φ0.110±0.003(2.79±0.076) 8 BOTTOM PIN SIDE VIEW Typical clearance to on-board components is 0.015˝ (0.38mm). In general, the user should not place components directly below the converter. Dimensions are in inches (mm shown for ref. only). Third Angle Projection Tolerances (unless otherwise specified): .XX ± 0.02 (0.5) .XXX ± 0.010 (0.25) Angles ± 2˚ Components are shown for reference only and may vary between units. www.murata-ps.com/support MDC_UEE_Series.C01 Page 20 of 29 UEE Series Isolated, High-Density, Eighth-Brick DOSA Low Profile DC-DC Converters MECHANICAL SPECIFICATIONS (SURFACE MOUNT) Package C56 0.150 (3.81) 0.40 (10.16) Max SIDE VIEW, OPEN FRAME 0.02 minimum clearance highest component 2.000 (50.8) 2 1 0.150 (3.81) 4 5 6 7 8 3 0.300 0.600 (15.24) 0.90 (22.9) 0.600 (15.24) BOTTOM PIN VIEW 0.085 (2.159) 0.037 (0.939) 2.30 (58.4) 0.300 0.600 0.90 (22.9) 0.600 (15.24) 2.00 (50.8) 0.15 (3.8) RECOMMENDED PAD LAYOUT (SMD) 0.15 (3.8) FINISH:UNDERPLATE WITH 2.54 μm MIN AND 7.6 μm MAX 0F NICKEL, OVERPLATE WITH 0.10 μm MIN AND 0.30 μm Max OF GOLD. 2.30 (58.4) Do not place components directly below the converter. DOSA-Compatible INPUT/OUTPUT CONNECTIONS Pin Function P32 1 Positive Input 2 On/Off Control 3 Negative Input 4 Negative Output 5 Negative Sense 6 Output Trim 7 Positive Sense 8 Positive Output Dimensions are in inches (mm shown for ref. only). Third Angle Projection Tolerances (unless otherwise specified): .XX ± 0.02 (0.5) .XXX ± 0.010 (0.25) Angles ± 2˚ Components are shown for reference only and may vary between units. www.murata-ps.com/support MDC_UEE_Series.C01 Page 21 of 29 UEE Series Isolated, High-Density, Eighth-Brick DOSA Low Profile DC-DC Converters SHIPPING TRAYS AND BOXES (THROUGH-HOLE MOUNT) Anti-static foam Label Label For 1–42 pc quantity For 43–84 pc quantity SHIPPING TRAY (THROUGH-HOLE MOUNT) UEE through-hole 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. 0.910 (23.1) TYP 9.920 (252) +0.000 -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) 1.300 (33.0) TYP 1.06 (26.9) 7.800 (198.1) 0.25 R TYP 0.25 CHAMFER TYP (4-PL) www.murata-ps.com/support MDC_UEE_Series.C01 Page 22 of 29 UEE Series Isolated, High-Density, Eighth-Brick DOSA Low Profile DC-DC Converters TAPE AND REEL INFORMATION (SURFACE MOUNT, MSL Rating 2a) FEE DIRED (UNWI ND) C ----- TION PIN #1 INDICATOR AT EACH POCKET ON POCKET TAPE PIN #1 OF DC-DC CONVERTER 2.83 72.0 FEED (UNWIND) DIRECTION ------- 'ROUND' SPROCKET HOLES 2.300 58.42 REF PCB 'OBLONG' SPROCKET HOLES .900 22.86 REF PCB 13.0" x 72mm WIDE REEL (REF) 32.00 PITCH Reel Information (100 units per reel) FEED (UNWIND) DIRECTION ------PIN #1 INDICATOR AT EACH POCKET ON POCKET TAPE PIN #1 OF DC-DC CONVERTER 2.83 72.0 .157 4.00 1.50mm 'ROUND' SPROCKET HOLES .199 5.06 REF .069 1.75 A 2.693 68.40 SPROCKET CENTERS (REF) 2.300 58.42 PCB REF 2.00 1.260 32.00 PITCH .900 22.86 PCB REF A .410 10.42 POCKET DEPTH 2.379 60.43 2.436 61.88 'OBLONG' SPROCKET HOLES SECTION A-A SCALE 2 : 1 COVER TAPE .30 7.62 .978 24.85 1.043 26.50 .442 11.22 .30 7.62 #1 .87 22.10 .75 19.05 .31 8.00 UEE-3.3/15 PICKUP POINT #1 .31 8.00 UEE-3.3/25, 3.3/30 PICKUP POINT www.murata-ps.com/support MDC_UEE_Series.C01 Page 23 of 29 UEE Series Isolated, High-Density, Eighth-Brick DOSA Low Profile DC-DC Converters TECHNICAL NOTES THROUGH-HOLE 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. SMT REFLOW SOLDERING GUIDELINES The surface-mount reflow solder profile shown below is suitable for SAC305 type lead-free solders. This graph should be used only as a guideline. Many other factors influence the success of SMT reflow soldering. Since your production environment may differ, please thoroughly review these guidelines with your process engineers. Wave Solder Operations for through-hole mounted products (THMT) For Sn/Ag/Cu based solders: Maximum Preheat Temperature Maximum Pot Temperature Maximum Solder Dwell Time 115ºC. 270ºC. 7 seconds For Sn/Pb based solders: Maximum Preheat Temperature Maximum Pot Temperature Maximum Solder Dwell Time 105ºC. 250ºC. 6 seconds Input Fusing Certain applications and/or safety agencies may require fuses at the inputs of power conversion components. Fuses should also be used when there is the possibility of sustained input voltage reversal which is not current-limited. For greatest safety, we recommend a fast blow fuse installed in the ungrounded input supply line with a value which is approximately twice the maximum line current, calculated at the lowest input voltage. The installer must observe all relevant safety standards and regulations. For safety agency approvals, install the converter in compliance with the end-user safety standard. Input Reverse-Polarity Protection If the input voltage polarity is reversed, an internal body diode will become forward biased and likely draw excessive current from the power source. If this source is not current-limited or the circuit appropriately fused, it could cause permanent damage to the converter. Please be sure to install a properly rated external input fuse. Input Under-Voltage Shutdown and Start-Up Threshold Under normal start-up conditions, converters will not begin to regulate properly until the rising input voltage exceeds and remains at the Start-Up Threshold Voltage (see Specifications). Once operating, converters will not turn off until the input voltage drops below the Under-Voltage Shutdown Limit. Subsequent restart will not 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. Users should be aware however of input sources near the Under-Voltage Shutdown whose voltage decays as input current is consumed (such as capacitor inputs), the converter shuts off and then restarts as the external capacitor recharges. Such situations could oscillate. To prevent this, make sure the operating input voltage is well above the UV Shutdown voltage AT ALL TIMES. Start-Up Delay Assuming that the output current is set at the rated maximum, the Vin to Vout Start-Up Time (see Specifications) is the time interval between the point when the rising input voltage crosses the Start-Up Threshold and the fully loaded regulated output voltage enters and remains within its specified regulation band. Actual measured times will vary 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 that the converter already has its input voltage stabilized above the www.murata-ps.com/support MDC_UEE_Series.C01 Page 24 of 29 UEE Series Isolated, High-Density, Eighth-Brick DOSA Low Profile DC-DC Converters Start-Up Threshold before the On command. The interval is measured from the On command until the output enters and remains within its specified regulation band. The specification assumes that the output is fully loaded at maximum rated current. Input Source Impedance These converters will operate to specifications without external components, assuming that the source voltage has very low impedance and reasonable input voltage regulation. Since real-world voltage sources have finite impedance, performance is improved by adding external filter components. Sometimes only a small ceramic capacitor is sufficient. Since it is difficult to totally characterize all applications, some experimentation may be needed. Note that external input capacitors must accept high speed switching currents. Because of the switching nature of DC-DC converters, the input of these converters must be driven from a source with both low AC impedance and adequate DC input regulation. Performance will degrade with increasing input inductance. Excessive input inductance may inhibit operation. The DC input regulation specifies that the input voltage, once operating, must never degrade below the Shut-Down Threshold under all load conditions. Be sure to use adequate trace sizes and mount components close to the converter. I/O Filtering, Input Ripple Current and Output Noise All models in this converter series are tested and specified for input reflected ripple current and output noise using designated external input/output components, circuits and layout as shown in the figures below. External input capacitors (Cin in the figure) serve primarily as energy storage elements, minimizing line voltage variations caused by transient IR drops in the input conductors. Users should select input capacitors for bulk capacitance (at appropriate frequencies), low ESR and high RMS ripple current ratings. In the figure below, the Cbus and Lbus components simulate a typical DC voltage bus. Your specific system configuration may require additional considerations. Please note that the values of Cin, Lbus and Cbus will vary according to the specific converter model. In critical applications, output ripple and noise (also referred to as periodic and random deviations or PARD) may be reduced by adding filter elements such as multiple external capacitors. Be sure to calculate component temperature rise from reflected AC current dissipated inside capacitor ESR. TO OSCILLOSCOPE CURRENT PROBE +VIN VIN + – + – LBUS CBUS CIN −VIN CIN = 33μF, ESR < 700mΩ @ 100kHz CBUS = 220μF, ESR < 100mΩ @ 100kHz LBUS = 12μH Figure 7. Measuring Input Ripple Current +SENSE +VOUT C1 C2 SCOPE RLOAD −VOUT −SENSE C1 = 1μF C2 = 10μF LOAD 2-3 INCHES (51-76mm) FROM MODULE Figure 8. Measuring Output Ripple and Noise (PARD) Floating Outputs Since these are isolated DC-DC converters, their outputs are “floating” with respect to their input. The essential feature of such isolation is ideal ZERO CURRENT FLOW between input and output. Real-world converters however do exhibit tiny leakage currents between input and output (see Specifications). These leakages consist of 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 specifications. Otherwise the converter may be damaged. Designers will normally use the negative output (-Output) as the ground return of the load circuit. You can however use the positive output (+Output) as the ground return to effectively reverse the output polarity. Minimum Output Loading Requirements All models regulate within specification and are stable under no load to full load conditions. Operation under no load might however slightly increase output ripple and noise. Thermal Shutdown To protect against thermal overstress, these converters include thermal shutdown circuitry. If environmental conditions cause the temperature of the DC-DC’s to rise above the Operating Temperature Range up to the shutdown temperature, an on-board electronic temperature sensor 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 hysteresis to prevent rapid on/off cycling. The temperature sensor is typically located adjacent to the switching controller, approximately in the center of the unit. See the Performance and Functional Specifications. CAUTION: If you operate too close to the thermal limits, the converter may shut down suddenly without warning. Be sure to thoroughly test your application to avoid unplanned thermal shutdown. Temperature Derating Curves The graphs in this data sheet illustrate typical operation under a variety of conditions. The Derating curves show the maximum continuous ambient air temperature and decreasing maximum output current which is acceptable under increasing forced airflow measured in Linear Feet per Minute (“LFM”). Note that these are AVERAGE measurements. The converter will accept brief increases in current or reduced airflow as long as the average is not exceeded. www.murata-ps.com/support MDC_UEE_Series.C01 Page 25 of 29 UEE Series Isolated, High-Density, Eighth-Brick DOSA Low Profile DC-DC Converters Note that the temperatures are of the ambient airflow, not the converter itself which is obviously running at higher temperature than the outside air. Also note that very low flow rates (below about 25 LFM) are similar to “natural convection,” that is, not using fan-forced airflow. Murata Power Solutions 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 difficult to insert an anemometer to precisely measure airflow in most applications. Sometimes it is possible to estimate the effective airflow if you thoroughly understand the enclosure geometry, entry/exit orifice areas and the fan flowrate specifications. CAUTION: If you exceed these Derating guidelines, the converter may have an unplanned Over Temperature shut down. Also, these graphs are all collected near Sea Level altitude. Be sure to reduce the derating for higher altitude. Output Overvoltage Protection (OVP) This converter monitors its output voltage for an over-voltage condition. If the output exceeds OVP limits, the sensing circuit will power down the unit, and the output voltage will decrease. After a time-out period, the PWM will automatically attempt to restart, causing the output voltage to ramp up to its rated value. It is not necessary to power down and reset the converter for the automatic OVP-recovery restart. If the fault condition persists and the output voltage climbs to excessive levels, the OVP circuitry will initiate another shutdown cycle. This on/off cycling is referred to as “hiccup” mode. Output Fusing The converter is extensively protected against current, voltage and temperature extremes. However your application circuit may need additional protection. In the extremely unlikely event of output circuit failure, excessive voltage could be applied to your circuit. Consider using appropriate external protection. Output Current Limiting As soon as the output current increases to approximately 125% to 150% of its maximum rated value, the DC-DC converter will enter a current-limiting mode. The output voltage will decrease proportionally with increases in output current, thereby maintaining a somewhat constant power output. This is also commonly referred to as power limiting. Current limiting inception is defined as the point at which full power falls below the rated tolerance. See the Performance/Functional Specifications. Note particularly that the output current may briefly rise above its rated value in normal operation as long as the average output power is not exceeded. This enhances reliability and continued operation of your application. If the output current is too high, the converter will enter the short circuit condition. Output Short Circuit Condition When a converter is in current-limit mode, the output voltage will drop as the output current demand increases. If the output voltage drops too low (approximately 98% of nominal output voltage for most models), the magnetically coupled voltage used to develop the PWM bias voltage will also drop, thereby shutting down the PWM controller. Following a time-out period, the PWM will restart, causing the output voltage to begin rising to its appropriate value. If the short-circuit condition persists, another shutdown cycle will initiate. This rapid on/off cycling is called “hiccup mode.” The hiccup cycling reduces the average output current, thereby preventing excessive internal temperatures and/or component damage. The “hiccup” system differs from older latching short circuit systems because you do not have to power down the converter to make it restart. The system will automatically restore operation as soon as the short circuit condition is removed. Remote Sense Input (Models UEE-3.3/30-D48 only) Use the Sense inputs with caution. Sense is normally connected at the load. Sense inputs compensate for output voltage inaccuracy delivered at the load. This is done by correcting IR voltage drops along the output wiring and the current carrying capacity of PC board etch. This output drop (the difference between Sense and Vout when measured at the converter) should not exceed 0.5V. Consider using heavier wire if this drop is excessive. Sense inputs also improve the stability of the converter and load system by optimizing the control loop phase margin. Note: The Sense input and power Vout lines are internally connected through low value resistors to their respective polarities so that the converter can operate without external connection to the Sense. Nevertheless, if the Sense function is not used for remote regulation, the user should connect +Sense to +Vout and –Sense to –Vout at the converter pins. The remote Sense lines carry very little current. They are also capacitively coupled to the output lines and therefore are in the feedback control loop to regulate and stabilize the output. As such, they are not low impedance inputs and must be treated with care in PC board layouts. Sense lines on the PCB should run adjacent to DC signals, preferably Ground. In cables and discrete wiring, use twisted pair, shielded tubing or similar techniques. Any long, distributed wiring and/or significant inductance introduced into the Sense control loop can adversely affect overall system stability. If in doubt, test your applications by observing the converter’s output transient response during step loads. There should not be any appreciable ringing or oscillation. You may also adjust the output trim slightly to compensate for voltage loss in any external filter elements. Do not exceed maximum power ratings. Contact and PCB resistance losses due to IR drops +VOUT +VIN I OUT +SENSE Sense Current ON/OFF CONTROL TRIM LOAD Sense Return −SENSE I OUT Return –VIN -VOUT Contact and PCB resistance losses due to IR drops Figure 9. Remote Sense Circuit Configuration www.murata-ps.com/support MDC_UEE_Series.C01 Page 26 of 29 UEE Series Isolated, High-Density, Eighth-Brick DOSA Low Profile DC-DC Converters Please observe Sense inputs tolerance to avoid improper operation: [Vout(+) −Vout(-)] − [Sense(+) −Sense(-)] ≤ 10% of Vout Output overvoltage protection is monitored at the output voltage pin, not the Sense pin. Therefore excessive voltage differences between Vout and Sense together with trim adjustment of the output can cause the overvoltage protection circuit to activate and shut down the output. Power derating of the converter is based on the combination of maximum output current and the highest output voltage. Therefore the designer must insure: (Vout at pins) x (Iout) ≤ (Max. rated output power) 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 equations and circuit diagrams that follow, trim adjustments use either a trimpot or a single fixed resistor connected between the Trim input and either the +Sense or –Sense terminals. 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 the trim unconnected. With no trim, the converter will exhibit its specified output voltage accuracy. There are two CAUTIONs to observe for the Trim input: CAUTION: To avoid unplanned power down cycles, do not exceed EITHER the maximum output voltage OR the maximum output power when setting the trim. 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 is exceeded, the converter may enter current limiting. If the power is exceeded for an extended period, the converter may overheat and encounter overtemperature shut down. CAUTION: Be careful of external electrical noise. The Trim input is a senstive 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. Trim Equations Trim Down Connect trim resistor between trim pin and −Sense Trim Up Connect trim resistor between trim pin and +Sense RTrimDn (k Ω) = 5.11 − 10.22 RTrimUp (k Ω) = 5.11 × VNOM × (1+ − 5.11 − 10.22 1.225 × Where, VNOM − VOUT) / VNOM VNOM is the nominal, untrimmed output voltage. VOUT is the desired new output voltage. Do not exceed the specified trim range or maximum power ratings when adjusting trim. Use 1% precision resistors mounted close to the converter on short leads. If sense is not installed, connect the trim resistor to the respective VOUT pin. Trim Circuits +VOUT +VIN +VOUT +VIN +SENSE ON/OFF CONTROL TRIM +SENSE LOAD ON/OFF CONTROL –SENSE –VIN –VOUT Figure 10. Trim Connections Using A Trimpot TRIM LOAD RTRIM UP –SENSE –VIN –VOUT Figure 11. Trim Connections To Increase Output Voltages Connect sense to its respective VOUT pin if sense is not used with a remote load. www.murata-ps.com/support MDC_UEE_Series.C01 Page 27 of 29 UEE Series Isolated, High-Density, Eighth-Brick DOSA Low Profile DC-DC Converters +VIN +VOUT +VCC +SENSE ON/OFF CONTROL RTRIM DOWN TRIM LOAD –SENSE –VIN ON/OFF CONTROL -VIN –VOUT Figure 12. Trim Connections To Decrease Output Voltages Remote On/Off Control On the input side, a remote On/Off Control can be specified with either positive or negative logic logic. Positive: Models equipped with positive logic are enabled when the On/Off pin is left open or is pulled high to +Vin with respect to –Vin. An internal bias current causes the open pin to rise to approximately +13.5V. Some models will also turn on at lower 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 respect to –Vin. 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 approximately +13.5V with respect to –Vin. Figure 13. Driving the On/Off Control Pin (suggested circuit) Output Capacitive Load These converters do not require external capacitance added to achieve rated specifications. Users should only consider adding capacitance to reduce switching noise and/or to handle spike current step loads. Install only enough capacitance to achieve noise objectives. Excess external capacitance may cause regulation problems, slower transient response and possible instability. Proper wiring of the Sense inputs will improve these factors under capacitive load. The maximum rated output capacitance and ESR specification is given for a capacitor installed immediately adjacent to the converter. Any extended output wiring or smaller wire gauge or less ground plane may tolerate somewhat higher capacitance. Also, capacitors with higher ESR may use a larger capacitance. 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) between the time of On/Off Control activation and stable, regulated output. This time will vary slightly with output load type and current and input conditions. www.murata-ps.com/support MDC_UEE_Series.C01 Page 28 of 29 UEE Series Isolated, High-Density, Eighth-Brick DOSA Low Profile DC-DC Converters Vertical Wind Tunnel IR Transparent optical window Unit under test (UUT) Variable speed fan IR Video Camera Murata Power Solutions employs a computer controlled custom-designed closed loop vertical wind tunnel, infrared video camera system, and test instrumentation for accurate airflow and heat dissipation analysis of power products. The system includes a precision low flow-rate anemometer, variable speed fan, power supply input and load controls, temperature gauges, and adjustable heating element. The IR camera monitors the thermal performance of the Unit Under Test (UUT) under static steady-state conditions. A special optical port is used which is transparent to infrared wavelengths. Heating element Precision low-rate anemometer 3” below UUT Ambient temperature sensor Airflow collimator Both through-hole and surface mount converters are soldered down to a 10" x 10" host carrier board for realistic heat absorption and spreading. Both longitudinal and transverse airflow studies are possible by rotation of this carrier board since there are often significant differences in the heat dissipation in the two airflow directions. The combination of adjustable airflow, adjustable ambient heat, and adjustable Input/Output currents and voltages mean that a very wide range of measurement conditions can be studied. The collimator reduces the amount of turbulence adjacent to the UUT by minimizing airflow turbulence. Such turbulence influences 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 overheating. Both sides of the UUT are studied since there are different thermal gradients on each side. The adjustable heating element and fan, built-in temperature gauges, and no-contact IR camera mean that power supplies are tested in real-world conditions. Figure 14. Vertical Wind Tunnel Murata Power Solutions, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A. ISO 9001 and 14001 REGISTERED This product is subject to the following operating requirements and the Life and Safety Critical Application Sales Policy: Refer to: http://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. © 2013 Murata Power Solutions, Inc. www.murata-ps.com/support MDC_UEE_Series.C01 Page 29 of 29