UCE Series Isolated, High-Density, Eighth-Brick 100W DC/DC Converters Typical unit FEATURES n RoHS compliant n Industry standard eighth-brick pinout and package n Outputs from 1.5V to 12V up to 100W n Low profile 0.4" height with 0.9" x 2.3" outline dimensions n 36 to 75 Vdc nominal input n Fully isolated, 2250 Vdc (BASIC) insulation n Outstanding thermal performance and derating n Extensive self-protection and short circuit features with no output reverse conduction n On/Off control, trim and sense functions n Interleaved synchronous rectification yields high efficiency over 90% n Fully protected against temperature and voltage limits n UL/EN/IEC 60950-1 safety approvals n Qual/HALT/EMI testing is scheduled For efficient, fully isolated DC power in the smallest space, the UCE open frame DC/DC converter series fit in industry-standard "eighth brick" outline dimensions and mounting pins (on quarter-brick pinout). PRODUCT OVERVIEW Units are offered with fixed output voltages from 1.5 to 12 Volts and currents up to 40 Amps. UCEs operate over a wide temperature range (up to +85 degrees Celsius at moderate airflow) with full rated power. Interleaved synchronous rectifier topology yields excellent efficiency over 90% and no reverse output conduction. UCE's achieve these impressive mechanical and environmental specs while delivering excellent electrical performance in a through-hole package. Overall noise is typically 50 mV pk-pk (low voltage models) with fast step response. These converters offer tight output regulation and high stability even with no load. 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. "Hiccup" output protection automatically restarts the converter when the fault is removed. A convenient remote On/Off control input enables phased startup and shutdown in multi-voltage applications. To compensate for longer wiring and to retain output voltage accuracy at the load, UCEs employ a Sense input to dynamically correct for ohmic losses. A trim input may be connected to a user's adjustment potentiometer or trim resistors for output voltage calibration. The UCE will tolerate substantial capacitive loading for bypass-cap applications. UCEs include industry-standard safety certifications and BASIC I/O insulation provides input/output isolation to 2250V. Radiation emission testing is performed to widely-accepted EMC standards. SIMPLIFIED BLOCK DIAGRAM +SENSE (7) +VIN (3) +VOUT (8) SWITCH CONTROL -VOUT (4) -VIN (1) PULSE TRANSFORMER PWM CONTROLLER REMOTE ON/OFF CONTROL (2) OPTO ISOLATION INPUT UNDERVOLTAGE, INPUT OVERVOLTAGE, AND OUTPUT OVERVOLTAGE COMPARATORS REFERENCE & ERROR AMP -SENSE (5) VOUT TRIM (6) Typical topology is shown. For full details go to www.murata-ps.com/rohs www.murata-ps.com Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000 MDC_UCE.A09 Page 1 of 10 UCE Series Isolated, High-Density, Eighth-Brick 100W DC/DC Converters PERFORMANCE SPECIFICATIONS AND ORDERING GUIDE Output Model Family VOUT (V) IOUT (A) Power (W) UCE-1.2/40-D48N-C 1.2 40 48 UCE-1.5/20-D48N-C 1.5 20 30 UCE-1.5/40-D48N-C 1.5 40 60 UCE-1.8/30-D48N-C 1.8 30 54 UCE-2.5/20-D48N-C 2.5 20 50 UCE-2.5/40-D48N-C 2.5 40 100 UCE-3.3/15-D48N-C 3.3 15 49.5 UCE-3.3/30-D48N-C 3.3 30 99 UCE-5/10-D48N-C 5 10 50 UCE-5/20-D48N-C 5 20 100 UCE-12/4.2-D48N-C UCE-12/8.3-D48N-C 12 12 4.2 8.3 50.4 99.6 Input Ripple & Noise (mVp-p) Typ. Max. 50 100 30 80 Regulation Line Load VIN Nom. Range (V) (V) IIN, no load (mA) IIN, full load (A) Efficiency Min. Typ. Please contact Murata Power Solutions for further information. 0.3% 48 36-75 50 0.72 85% Please contact Murata Power Solutions for further information. 0.125% 0.25% 48 36-75 45 1.28 87% 0.15% Package Case Pinout 87% C56 P32 88% C56 P32 90% 91% C56 P32 92% 90% C56 P32 Please contact Murata Power Solutions for further information. 50 100 0.125% 0.25% 0.1% 0.2% 48 36-75 1.15 60 2.27 86% 89% Please contact Murata Power Solutions for further information. 150 200 300 0.125% 0.25% 48 36-75 1.14 2.31 50 86% Please refer to the model number structure for additional ordering part numbers and options . PART NUMBER STRUCTURE U CE - 3.3 / 30 - D48 N B H - C RoHS Hazardous Materials compliance C = RoHS-6 (no lead), standard Y = RoHS-5 (with lead), optional, special quantity order Output Configuration: U = Unipolar/Single Conformal coating (optional) Blank = no coating, standard H = Coating added, optional, special quantity order Eighth-Brick Package Baseplate (optional) Blank = No baseplate, standard B = Baseplate installed, optional, special quantity order Nominal Output Voltage Maximum Rated Output Current in Amps On/Off Control Polarity N = Negative polarity, standard P = Positive polarity, optional Input Voltage Range: D48 = 36-75V, 48V nominal Note: Some model combinations may not be available. Contact Murata Power Solutions for availability. www.murata-ps.com Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000 MDC_UCE.A09 Page 2 of 10 UCE Series Isolated, High-Density, Eighth-Brick 100W DC/DC Converters INPUT CHARACTERISTICS Model Family UCE-1.5/20-D48 UCE-1.8/30-D48 UCE-3.3/15-D48 UCE-3.3/30-D48 UCE-12/4.2-D48 UCE-12/8.3-D48 Start-up Under- Reflected Full Inrush thresh- voltage (back) Load Tranold ShutRipple Vin Min. down Current Condi- sient tions A2sec (Volts) (A) (V) (mA) 32 32.5 32 32 32 32 34 48 Input Current Output Short Circuit (mA) Remote On/Off Control Positive Negative Internal Reverse Low Line Standby Input Polarity Logic Logic No Load (Vin=min.) Mode Filter Protec- Current "P" Model "N" Model (mA) (A) (mA) (mA) Suffix Suffix Type tion 10-30, See 50-150, 45-60, 0.05 model ordering 2 model model A sec dependent guide dependent dependent 0.97 1.72 1.54 3.06 1.52 3.07 1-10, model dependent See notes L-C OFF=Ground OFF=open or pin to +2.5V to +1V max. +15V max. ON=open or ON=Ground +3.5 to +15V pin to +0.8V max. max. 1.0 OUTPUT CHARACTERISTICS Model Family UCE-1.5/20-D48 UCE-1.8/30-D48 UCE-3.3/15-D48 UCE-3.3/30-D48 UCE-12/4.2-D48 UCE-12/8.3-D48 Capacitive Loading Max. Low ESR <0.02 Max. resistive load Adjustment Temperature F Range Coefficient Vout Accuracy 50% Load % of Vnom Vout V 10,000 10,000 10,000 max. 10,000 1000 1000 1.5 1.8 3.3 1% 3.3 12 12 -10 to +10% of Vnom. 0.02% of Vout range per C Minimum Loading No minimum load Remote Ripple/ Sense Noise Compen- (20 MHz Line/Load sation bandwidth) Regulation +10% Efficiency Current Limit Inception 98% of Vout, after warmup A 24.5 36 24 35 5.5 12 See ordering guide ISOLATION CHARACTERISTICS Model Family Input to Output Min. V UCE-1.5/20-D48 UCE-1.8/30-D48 UCE-3.3/15-D48 UCE-3.3/30-D48 UCE-12/4.2-D48 UCE-12/8.3-D48 Input to baseplate Min. V Baseplate to output Min. V Isolation Resistance M Isolation Capacitance pF Isolation Safety Rating 100 10 2250 1500 1500 1000 Basic Insulation 100 MISCELLANEOUS CHARACTERISTICS Model Family UCE-1.5/20-D48 UCE-1.8/30-D48 UCE-3.3/15-D48 UCE-3.3/30-D48 UCE-12/4.2-D48 UCE-12/8.3-D48 Calculated MTBF4 TBC Operating Temperature Range with derating (C) -40 to +85 Overvoltage Protection12 Operating Storage Thermal Short (V) Via Case Temperature Protection/ Circuit magnetic Short Circuit Temperature Range Shutdown Current feedback Protection (no derating) (C) (C) (A) (V) Method Current 1.95 limiting, 2.8 V. max 120 hiccup -55 to -40 to +120 5 autorestart. 4.25 +125 Remove overload for 125 14.5 recovery. www.murata-ps.com Relative Short Circuit Humidity Duration16 (non-condensing) Continuous, output shorted to ground. No damage. to +85C/85% Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000 MDC_UCE.A09 Page 3 of 10 UCE Series Isolated, High-Density, Eighth-Brick 100W DC/DC Converters ABSOLUTE MAXIMUM RATINGS DYNAMIC CHARACTERISTICS Start-up Time Model Family UCE-1.5/20-D48 UCE-1.8/30-D48 UCE-3.3/15-D48 UCE-3.3/30-D48 UCE-12/4.2-D48 UCE-12/8.3-D48 Dynamic Load Response (50-75-50% load step) 30-200 Sec to 1% of final value, model dependent Vin to Vout regulated (Max.) Remote On/ Off to Vout regulated (Max.) mSec 5-50, model dependent 5-50, model dependent Switching Frequency KHz 480 400 40 480 50 380 40 Input Voltage: Continuous: 48 Volt input models Transient (100 mSec. Max.) 48 Volt input models 75 Volts On/Off Control +15 Volts Input Reverse Polarity Protection 5 Amps, 10 sec. max. Output Overvoltage Protection Magnetic feedback. See specifications. Output Current * Current-limited. Devices can withstand sustained short circuit without damage. Storage Temperature -40 to +125C. Lead Temperature +280C, 10 seconds max. 200 10 100 Volts Absolute maximums are stress ratings. Exposure of devices to 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 nor recommended. Note: Not all model combinations are available. PERFORMANCE SPECIFICATION NOTES (1) All models are tested and specified with external 1||10 F ceramic/tantalum output capacitors and no external input capacitor. All capacitors are low ESR types. These capacitors are necessary to accommodate our test equipment and may not be required to achieve specified performance in your applications. All models are stable and regulate within spec under no-load conditions. (7) The outputs are not intended to sink appreciable reverse current. This may damage the outputs. (8) Output noise may be further reduced by adding an external filter. See I/O Filtering and Noise Reduction. General conditions for Specifications are +25 deg.C, Vin = nominal, Vout = nominal, full load. Adequate airflow must be supplied for extended testing under power. (9) All models are fully operational and meet published specifications, including "cold start" at -40C. (2) Input Ripple Current is tested and specified over a 5 Hz to 20 MHz bandwidth. Input filtering is Cin = 33 F, 100V tantalum, Cbus = 220 F, 100V electrolytic, Lbus = 12 H. (10) Regulation specifications describe the deviation as the line input voltage or output load current is varied from a nominal midpoint value to either extreme. (3) Note that Maximum Power Derating curves indicate an average current at nominal input voltage. At higher temperatures and/or lower airflow, the DC/DC converter will tolerate brief full current outputs if the total RMS current over time 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. (11) Alternate pin length and/or other output voltages are available under special quantity order. (4) Mean Time Before Failure is calculated using the Telcordia (Belcore) SR-332 Method 1, Case 3, ground fixed conditions, Tpcboard=+25 deg.C, full output load, natural air convection. (5) The On/Off Control is normally controlled by a switch. But it may also be driven with external logic or by applying appropriate external voltages which are referenced to Input Common. The On/Off Control Input should use either an open collector or open drain transistor. (12) Output current limit is non-latching. When the overcurrent fault is removed, the converter will immediately recover. (13) Do not exceed maximum power specifications when adjusting the output trim. (14) At zero output current, the output may contain low frequency components which exceed the ripple specification. The output may be operated indefinitely with no load. (15) If reverse polarity is accidentally applied to the input, a body diode will become forward biased and will conduct considerable current. To ensure reverse input protection with full output load, always connect an external input fuse in series with the +Vin input. Use approximately twice the full input current rating with nominal input voltage. (6) Short circuit shutdown begins when the output voltage degrades approximately 2% from the selected setting. www.murata-ps.com Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000 MDC_UCE.A09 Page 4 of 10 UCE Series Isolated, High-Density, Eighth-Brick 100W DC/DC Converters PHYSICAL CHARACTERISTICS Outline dimensions See mechanical specs (below) Pin material Copper alloy Pin diameter 0.04/0.062" (1.016/1.524mm) Pin finish Weight Nickel underplate with gold overplate UCE-1.5/20-D48 0.67 ounces (19 grams) UCE-1.8/30-D48, UCE-12/4.2-D48 0.71 ounces (20 grams) UCE-3.3/15-D48 1 ounce (28 grams) UCE-3.3/30-D48, UCE-12/8.3-D48 0.81 ounces (23 grams) Electromagnetic interference (conducted and radiated) (external filter required) FCC part 15, class B, EN55022 Safety UL/cUL 60950-1, CSA-C22.2 No. 60950-1, IEC/EN 60950-1 www.murata-ps.com Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000 MDC_UCE.A09 Page 5 of 10 UCE Series Isolated, High-Density, Eighth-Brick 100W DC/DC Converters MECHANICAL SPECIFICATIONS Without Baseplate 2.30 (58.4) 0.37 max (9.4) 0.18 (4.6) 0.015 minimum clearance between standoffs and highest component 2.00 (50.8) PINS 1-3, 5-7: 0.0400.001 (1.0160.025) dia. PINS 4, 8: 0.0600.001 (1.5240.025) dia. 1 0.300 (7.62) 0.300 (7.62) 4 0.15 0.900 (3.81) (22.9) 2 0.37 max (9.4) 0.18 (4.6) 2.30 (58.42) 3 Dimensions are in inches (mm shown for ref. only). Third Angle Projection Pin 8 2.00 (50.80) With Baseplate PINS 1-3, 5-7: 0.0400.001 (1.0160.025) dia. PINS 4, 8: 0.0600.001 (1.5240.025) dia. Screw length must not go through baseplate. Tolerances (unless otherwise specified): .XX 0.02 (0.5) .XXX 0.010 (0.25) Angles 2 Components are shown for reference only. 0.50 (12.7) 0.18 (4.6) 0.015 minimum clearance between standoffs and highest component 2.00 (50.8) 0.300 (7.62) 0.300 (7.62) 1 4 0.15 0.900 (3.81) (22.9) 2 3 Pin 8 Dimensions are in inches (mm). Typical component locations are shown. Actual units may vary. www.murata-ps.com INPUT/OUTPUT CONNECTIONS Pin Function P32 1 -Input 2 On/Off Control 3 +Input 4 -Output 5 -Sense 6 Output Trim 7 +Sense 8 +Output Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000 MDC_UCE.A09 Page 6 of 10 UCE Series Isolated, High-Density, Eighth-Brick 100W DC/DC Converters Trim Equations Trim Equations Trim Down Connect trim resistor between trim pin and -Sense Trim Up Connect trim resistor between trim pin and +Sense RTrimDn (k ) = 5.11 - 10.22 RTrimUp (k ) = 5.11 x VNOM x (1+ - 5.11 - 10.22 1.225 x 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. Trim Circuits +OUTPUT -INPUT +SENSE ON/OFF CONTROL TRIM LOAD -SENSE +INPUT -OUTPUT Figure A. Trim Connections Using A Trimpot -INPUT +OUTPUT +OUTPUT -INPUT +SENSE ON/OFF CONTROL +SENSE TRIM LOAD RTRIM UP ON/OFF CONTROL -SENSE +INPUT RTRIM DOWN TRIM LOAD -SENSE +INPUT -OUTPUT Figure B. Trim Connections To Increase Output Voltages www.murata-ps.com -OUTPUT Figure C. Trim Connections To Decrease Output Voltages Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000 MDC_UCE.A09 Page 7 of 10 UCE Series Isolated, High-Density, Eighth-Brick 100W DC/DC Converters Typical Performance Curves UCE-1.5/20-D48 Efficiency vs Line Voltage & Load Current @ 25C 90 20 Vin = 75V 80 Efficiency (%) Output Current (A) 85 Vin = 48V Vin = 36V 75 UCE-1.5/20-D48 Maximum Current Temperature Derating (Vin = 48V, no baseplate, longitudinal airflow at sea level) 18 400 LFM 300 LFM 200 LFM 100 LFM 16 14 12 70 10 65 30 40 50 60 70 80 Ambient Temperature (C) 60 3 6 9 12 15 18 Load Current (A) 35 UCE-1.8/30-D48 Maximum Current Temperature Derating (Vin = 48V, no baseplate, longitudinal airflow at sea level) 30 Vin = 75V Output Current (A) Efficiency (%) UCE-1.8/30-D48 Efficiency vs Line Voltage & Load Current @ 25C 95 90 85 80 75 70 65 60 55 50 45 40 Vin = 48V Vin = 36V 25 400 LFM 300 LFM 200 LFM 100 LFM 20 15 10 5 0 3 5 7 9 11 13 15 17 19 21 23 25 27 30 35 40 29 45 50 55 60 65 70 75 80 Ambient Temperature (C) Load Current (A) UCE-2.5/20-D48 Maximum Current Temperature Derating (Vin = 48V, with baseplate, longitudinal airflow at sea level) UCE-2.5/20-D48 Efficiency vs Line Voltage & Load Current @ 25C 20 95 Output Current (A) 18 Efficiency (%) 90 Vin = 75V Vin = 48V Vin = 36V 85 80 14 12 10 75 300 LFM 200 LFM 100 LFM Natural Convection 16 30 40 50 60 70 80 Ambient Temperature (C) 70 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Load Current (A) www.murata-ps.com Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000 MDC_UCE.A09 Page 8 of 10 UCE Series Isolated, High-Density, Eighth-Brick 100W DC/DC Converters Typical Performance Curves UCE-3.3/15-D48 Efficiency Vs. Line Voltage & Load Current @ +25C UCE-3.3/15-D48 Maximum Current Temperature Derating (Vin = 48V, no baseplate, longitudinal airflow at sea level) 95 16 14 12 Output Current (A) Efficiency (%) 90 Vin = 75V Vin = 48V Vin = 36V 85 80 10 8 4 2 75 0 70 400 LFM 300 LFM 200 LFM 100 LFM 6 3 4 5 6 7 8 9 10 11 12 13 14 30 40 50 60 70 80 Ambient Temperature (C) 15 Load Current (A) UCE-3.3/30-D48 Efficiency vs Line Voltage & Load Current @ 25C UCE-3.3/30-D48 Maximum Current Temperature Derating (Vin = 48V, no baseplate, longitudinal airflow at sea level) 95 90 35 85 Vin = 75V Vin = 48V Vin = 36V 75 30 Output Current (A) Efficiency (%) 80 70 65 60 55 400 LFM 300 LFM 200 LFM 20 15 100 LFM 10 50 45 40 25 5 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 0 Load Current (A) 30 35 40 45 50 55 60 65 70 75 80 Ambient Temperature (C) UCE-12/4.2-D48 Efficiency Vs. Line Voltage & Load Current @ +25C 95 4.25 UCE-12/4.2-D48 Maximum Current Temperature Derating (Vin = 48V, no baseplate, longitudinal airflow at sea level) 4 85 Vin = 75V Vin = 48V Vin = 36V 80 75 Output Current (A) Efficiency (%) 90 70 3.5 3.25 65 60 0.6 200 to 400 LFM 100 LFM 3.75 1.2 1.8 2.4 3.0 3.6 4.2 Load Current (A) 3 30 40 50 60 70 80 Ambient Temperature (C) www.murata-ps.com Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000 MDC_UCE.A09 Page 9 of 10 UCE Series Isolated, High-Density, Eighth-Brick 100W DC/DC Converters Typical Performance Curves UCE-12/8.3-D48 Efficiency vs Line Voltage & Load Current @ 25C 95 5 90 4 UCE-12/8.3-D48 Maximum Current Temperature Derating (Vin = 48V, no baseplate, longitudinal airflow at sea level) 9 8 80 3 2 Output Current (A) Efficiency (%) 7 Vin = 75V Vin = 48V Vin = 36V 85 1 75 3 4 5 6 7 400 LFM 300 LFM 200 LFM 100 LFM 5 4 3 2 0 70 6 8 30 40 50 60 70 80 Ambient Temperature (C) Load Current (A) USA: Mansfield (MA), Tel: (508) 339-3000, email: sales@murata-ps.com Canada: Toronto, Tel: (866) 740-1232, email: toronto@murata-ps.com Murata Power Solutions, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A. Tel: (508) 339-3000 (800) 233-2765 Fax: (508) 339-6356 UK: Milton Keynes, Tel: +44 (0)1908 615232, email: mk@murata-ps.com France: Montigny Le Bretonneux, Tel: +33 (0)1 34 60 01 01, email: france@murata-ps.com Germany: Munchen, Tel: +49 (0)89-544334-0, email: munich@murata-ps.com www.murata-ps.com email: sales@murata-ps.com ISO 9001 REGISTERED Japan: Tokyo, Tel: 3-3779-1031, email: sales_tokyo@murata-ps.com Osaka, Tel: 6-6354-2025, email: sales_osaka@murata-ps.com Website: www.murata-ps.jp China: Shanghai, Tel: +86 215 027 3678, email: shanghai@murata-ps.com Guangzhou, Tel: +86 208 221 8066, email: guangzhou@murata-ps.com 07/03/08 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. (c) 2008 Murata Power Solutions, Inc. www.murata-ps.com Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000 MDC_UCE.A09 Page 10 of 10