QBC Series 48VIN, 12V/22A Output High Efficiency, ¼-Brick Bus Converters The QBC-12/22-L48 DC/DC converter is one of DATEL's new generation, fully isolated, Intermediate Bus Converters, designed and optimized for total on-board solutions in combination with our nonisolated point of load converters of the HEN, LEN, LQN, LSM and LSN series. .PRODUCT OVERVIEW Typical unit FEATURES 264 Watts total output power The QBC’s convert the standard 48V (40.5 to 57V limited range) to a nonregulated 12V (9.6 to 13.5V range) bus voltage with a total output power of 264 96% Ultra-high effi ciency @ full load 48V Input (40.5 to 57V range) load operation, current sharing capability, and low output ripple/noise (80mVp-p). Watts. Taking full advantage of a synchronous-rectifi er topology, the QBC-series achieve ultra-high effi ciency of 96%, minimizing power losses and enabling full-power operation to ambient temperatures up to +70°C with minimal air flow. These highdensity, open-frame DC/DC converters are standard quarter-brick packages with industry-standard footprint and are only 0.42 inches (10.67mm) high, or 0.54 inches (13.72mm) with optional heat sink. 12V/22A Output for Intermediate Bus Architectures with POL converters Input Over/Under Voltage Shutdown Synchronous-rectifier topology 150kHz fi xed switching frequency Output current sharing Fully isolated, 2250V (BASIC) Low 80mVp-p ripple/noise Assembled using fully automated, SMT-on-pcb techniques, QBC’s provide fixed frequency conversion, output On/Off control with choice of positive (standard) or negative (optional) logic, stable no- Standard quarter-brick package Stable no-load condition Thermal shutdown The fully functional QBC bus converters feature full I/O fault protection including input overvoltage and undervoltage shutdown, output overvoltage, output current limiting, with choice of "hiccup" (standard) or "latching" (optional), short-circuit protection, and thermal shutdown. All models are IEC/EN/UL60950-1 certified and EMC compliant. Safety, CB, HALT and EMC reports are available upon request. Refer to the DATEL application note, Bus Converters Aim to Boost Efficiency In IBA-Based Power Designs. Fully I/O protected IEC/EN/UL/cUL60950-1 certified ORDERING GUIDE SUMMARY ~ Output Input Model VOUT V A Typ. Max. Regulation Line Load Temp. Max. Max. Max. QBC-12/22-L48-C 12 22 80 120 ±10% IOUT R/N (mV p-p) ±5% ±2% VIN Iin Efficiency Nom. V Range V mA/A Min. Typ. 48 40.5-57 125/5.7 94.5% 96% Package/Pinout C49, C50/P65 ~Typical at TA = +25°C under nominal line voltage and nominal-load conditions, unless noted. Ripple/Noise (R/N) is tested/specified over a 20MHz bandwidth. All models are specified with an external 0.1μF multi-layer ceramic capacitor installed across their output pins. Devices have no minimum-load requirements and will regulate under no-load conditions. Regulation specifications describe the output-voltage deviation as the line voltage or load is varied from its midpoint value to either extreme. Nominal line voltage, no-load/full-load conditions. IOUT max. at low line is 24 Amps; 20 Amps at high line. (See Performance Curves.) For full details go to www.murata-ps.com/rohs www.murata-ps.com Technical enquiries email: [email protected], tel: +1 508 339 3000 MDC_QBC.A02 Page 1 of 6 QBC Series 48VIN, 12V/22A Output High Efficiency, ¼-Brick Bus Converters MECHANICAL SPECIFICATIONS 2.30 (58.4) 1.860 (47.2) B A B A 1.030 (26.2) 1.030 (26.2) 1.45 (36.8) #M3 X 0.5-6H THD X 0.175 DP #M3 X 0.5-6H THD X 0.175 DP 0.54 (13.7) 0.42 (10.7) 0.50 (12.7) PLASTIC STANDOFFS ARE RELIEVED 0.030 (0.76) IN SOLDER JOINT AREA 0.150 (3.8) 0.25 (6.4) 0.13 (3.3) TYP. B COPPER SMT LEADS COPLANAR TO 0.004 0.600 (15.2) 0.600 (15.2) B B A A B PINS 1-3: 0.040 ±0.001 (1.016 ±0.025) PINS 4-5: 0.062 ±0.001 (1.575 ±0.025) 2.00 (50.8) 4 1 0.600 (15.2) 2.22 (56.4) B 0.225 (5.7) A ALUMINUM BASE PLATE ALUMINUM BASE PLATE 1.45 (36.8) A 1.860 (47.2) B B 2.22 (56.4) 0.600 (15.2) 2 3 1.45 (36.8) 0.300 (7.6) 5 BOTTOM VIEW QBC Surface-Mount Version 0.300 (7.6) Dimensions are in inches (mm shown for ref. only). BOTTOM VIEW INPUT/OUTPUT CONNECTIONS Pin Function P65 DIMENSIONS ARE IN INCHES (MM) QBC Through-Hole Version 1 -Input 2 Remote On/Off 3 +Input 4 -Output 5 +Output 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. PART NUMBER STRUCTURE Q BC - 12 / 22 - L48 N L B M - C Quarter-Brick Package Bus Converter Nominal Output Voltage: 12 Volts Leave the option letters blank for standard default configuration. Maximum Rated Output: Current in Amps Input Voltage Range: L48 = 40.5 to 57 Volts (48V nominal) www.murata-ps.com RoHS-6 hazardous substance compliant Optional Surface-Mount Package Optional Baseplate Latching over-current protection (optional) (hiccup standard) Note: Optional: Some model number combinations may not be On/Off Control available. Contact Murata Power Solutions for with negative polarity ordering assistance. (standard is positive polarity) Technical enquiries email: [email protected], tel: +1 508 339 3000 MDC_QBC.A02 Page 2 of 6 QBC Series 48VIN, 12V/22A Output High Efficiency, ¼-Brick Bus Converters Performance/Functional Specifications Typical @ TA = +25°C under nominal line voltage and full-load conditions unless noted. ~ Input Input Voltage Range 40.5-57 Volts (48V nominal) Overvoltage Shutdown 57.5-59.5 Volts (58V typical) Start-Up Threshold 37-40 Volts (39.5V typical) Undervoltage Shutdown 36-39.5 Volts (38.5V typical) Input Current See Performance Spec Input Reflected Ripple Current 10mVp-p Internal Filter Type Pi Reverse Polarity Protection None (see Absolute Max. Ratings) On/Off Control Positive Logic On= open (internal pull-up) Off= 0 to 0.8V (0.8mA max.) On = pulled low to 0-0.8V (0.8mA max.) Off = open (internal pull-up) Negative Logic ("N" Suffix) ~ All models are tested and specified with no external output and no external input capacitors, and 300 lfm air flow, unless otherwise noted. All models will effectively regulate under no-load conditions (with perhaps a slight increase in output ripple/noise). See Technical Notes/Performance Curves for additional explanations and details. Input Ripple Current is tested/specified over a 5-20MHz bandwidth with an external 33μF input capacitor and a simulated source impedance of 220μF and 12μH. See I/O Filtering, Input Ripple Current and Output Noise for details. The On/Off Control is designed to be driven with open collector or by appropriate voltage levels The Current-Limit-Inception point is the output current level at which the converter's powerlimiting circuitry drops the output voltage 3% from its initial value. See Output Current Limiting and Short-Circuit Protection for more details. For Start-Up-Time specifications, output settling time is defined as the output voltage having reached ±1% of its final value and the load current having reached at least 80% of its final value. MTBF is calculated using TELCORDIA SR-332 Method 1 Case 3, ground fixed, +25°C ambient air and full-load conditions. Contact DATEL for demonstrated life test data. All models are fully operational and meet all published specifications, including "cold start," at –40°C. Output Absolute Maximum Ratings VOUT Range: (over line, load and temperature) 9.6 to 13.5V Minimum Loading Per Spec No load Input Voltage: Continuous or transient Ripple/Noise (20MHz BW) See Performance Spec Input Reverse-Polarity Protection Line/Load Regulation See Performance Spec None (Input current must be <1.5A all the time) Efficiency See Performance Spec Output Current Isolation Voltage: Input/Output Current limited. Devices can withstand an indefinite output short 2250Vdc min. (BASIC) Isolation Resistance circuit without damage. 10MΩ Isolation Capacitance 470pF Current Limit Inception 25-28 Amps @ 98% VOUT Short Circuit Current TBD Overvoltage Protection 13.85V Capacitive Loading (Resistive Load) 10000uF Temperature Coefficient ±0.02% /°C 60 Volts Storage Temperature –55 to +125°C Lead Temperature (soldering, 10 sec.) +300°C These 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. Dynamic Characteristics Dynamic Load Response (50-75% load step to within 1.5% of VOUT) 100μsec Start up time: VIN to VOUT On/Off to VOUT 30 msec 30 msec Switching Frequency, Fixed 150kHz (± TBD) Typical Performance Curves Output Voltage vs. Output Current (Ratio = 4:1, Output Impedance = 20m7) 15 Environmental TBC million hours –40 to +100°C Thermal Shutdown +115 to +125°C Storage Temperature –55 to +125°C Physical Dimensions See Mechanical Dimensions Pin Material underplate Copper, solder coated over nickel Weight 1.62 ounces (46 grams) 14 Output Voltage (Volts) Calculated MTBF Operating PCB Temperature without Derating VIN = 56V 13 12 VIN = 48V 11 VIN = 40.5V 10 9 0 Primary to Secondary Insulation Level Basic 2 4 6 8 10 12 14 16 18 20 22 24 Output Current (Amps) www.murata-ps.com Technical enquiries email: [email protected], tel: +1 508 339 3000 MDC_QBC.A02 Page 3 of 6 QBC Series 48VIN, 12V/22A Output High Efficiency, ¼-Brick Bus Converters Typical Performance Curves QBC-12/22-L48 Efficiency vs. Line Voltage and Load Current QBC-12/22-L48 Maximum Output Current vs. Ambient Temperature 6).6 !MAX.OBASEPLATEAIRFLOWDIRECTIONFROMOUTPUTPINSTOINPUTPINS 98 96 Output Current (Amps) Efficiency (%) 94 92 VIN = 42V 90 VIN = 48V .ATURAL#ONVECTION LFM LFM LFM VIN = 53V 88 n 86 2 4 6 8 10 12 14 16 18 Ambient Temperature (°C) 20 Load Current (Amps) QBC-12/22-L48 Maximum Output Current vs. Ambient Temperature 6).6 !MAX.OBASEPLATEAIRFLOWDIRECTIONFROMOUTPUTPINSTOINPUTPINS Output Current (Amps) Output Current (Amps) QBC-12/22-L48 Maximum Output Current vs. Ambient Temperature 6).6.OBASEPLATEAIRFLOWDIRECTIONFROMOUTPUTPINSTOINPUTPINS .ATURAL#ONVECTION LFM LFM LFM .ATURAL#ONVECTION LFM LFM LFM LFM n Ambient Temperature (°C) www.murata-ps.com n Ambient Temperature (°C) Technical enquiries email: [email protected], tel: +1 508 339 3000 MDC_QBC.A02 Page 4 of 6 QBC Series 48VIN, 12V/22A Output High Efficiency, ¼-Brick Bus Converters Typical Performance Curves QBC-12/22-L48 Temperature Derating 6).6!IRFLOWDIRECTIONFROMINPUTPINSTOOUTPUTPINS"ASEPLATEINSTALLED Output Current (Amps) Output Current (Amps) QBC-12/22-L48 Temperature Derating 6).6!IRFLOWDIRECTIONFROMINPUTPINSTOOUTPUTPINS"ASEPLATEINSTALLED LFM LFM LFM LFM LFM LFM LFM LFM LFM n LFM n Ambient Temperature (°C) Ambient Temperature (°C) QBC-12/22-L48 Temperature Derating 6).6!IRFLOWDIRECTIONFROMINPUTPINSTOOUTPUTPINS"ASEPLATEINSTALLED Output Current (Amps) LFM LFM LFM LFM LFM n Ambient Temperature (°C) USA: Mansfield (Ma), Tel: (508) 339-3000, email: [email protected] Canada: Toronto, Tel: (866) 740 1232, email: [email protected] 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: [email protected] France: Montigny Le Bretonneux, Tel: +33 (0)1 34 60 01 01, email: [email protected] Germany: München, Tel: +49 (0)89-544334-0, email: [email protected] www.murata-ps.com email: [email protected] ISO 9001 REGISTERED Japan: Tokyo, Tel: 3-3779-1031, email: [email protected] Osaka, Tel: 6-6354-2025, email: [email protected] Website: www.murata-ps.jp China: Shanghai, Tel: +86 215 027 3678, email: [email protected] Guangzhou, Tel: +86 208 221 8066, email: [email protected] 06/09/08 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. © 2008 Murata Power Solutions, Inc. www.murata-ps.com Technical enquiries email: [email protected], tel: +1 508 339 3000 MDC_QBC.A02 Page 5 of 6