QBE025A0B1-P

Data Sheet January 26, 2011 QBE025A0B Series Power Modules, DC - DC Converters: 42 – 53Vdc Input; 12Vdc Output; 25A Output Current Features RoHS Compliant  Compliant to RoHS EU Directive 2002/95/EC (-Z versions)  Compliant to ROHS EU Directive 2002/95/EC with lead solder exemption (non-Z versions)  Exceptionally High power density: 173 W/in3  High efficiency – 94% at 12V full load  Delivers up to 25A output current  Low output ripple and noise  Industry standard Quarter brick: 57.9 mm x 36.8 mm x 10.6 mm Applications  Distributed power architectures  (2.28 in x 1.45 in x 0.42 in)  Cost efficient open frame design Intermediate bus voltage applications  Single optimal regulated output  Telecommunications equipment  Intermediate input voltage range  Servers and storage applications  Constant switching frequency Networking equipment  Positive Remote On/Off logic  Output over current/voltage protection  Overtemperature protection  Options  Negative Remote On/Off logic  Active load sharing (Parallel Operation)  Baseplate option (-H)  Auto restart after fault shutdown  Case ground pin  Wide operating temperature range (-40°C to 85°C)  ISO* 9001 certified manufacturing facilities  Complies with and is licensed for Basic Insulation rating per EN60950-1  UL** 60950-1 Recognised, CSA† C22.2 No. 60950-103 Certified, and VDE‡ 0805 (IEC60950, 3rd Edition) Licensed  CE mark meets 2006/95/EC directive § Description The QBE025A0B series of dc-dc converters are an expansion of a new generation of DC/DC power modules designed to support 12Vdc intermediate bus applications where multiple low voltages are subsequently generated using discrete/modular point of load (POL) converters. The QBE025A0B series provide up to 25A output current in an industry standard quarter brick, which makes it an ideal choice for small space, high current and 12V intermediate bus voltage applications. The converter incorporates synchronous rectification technology and innovative packaging techniques to achieve ultra high efficiency reaching 94% at 12V full load. This leads to lower power dissipation such that for many applications a heat sink is not required. The QBE025A0B series power modules are isolated dc-dc converters that operate over an input voltage range from 42 to 53 Vdc and provide a single regulated 12V output. The output is fully isolated from the input, allowing versatile polarity configurations and grounding connections. Built-in filtering for both input and output minimizes the need for external filtering. This product is affected by a Permanent Injunction entered by the United States District Court for the Eastern District of Texas, Marshall Division in Civil Action No. 2:07-cv-00497-TJW-CE (copy enclosed). As set forth in that Order, certain acts associated with this product are prohibited. This Product is Not for Sale in, Use in, or Importation into the United States. ISO is a registered trademark of the International Organization of Standards Document No: DS03-078 ver. 1.27 ** UL is a registered trademark of Underwriters Laboratories, Inc. PDF Name: QBE025A0B.pdf † CSA is a registered trademark of Canadian Standards Association. ‡ VDE is a trademark of Verband Deutscher Elektrotechniker e.V. § This product is intended for integration into end-use equipment. All of the required procedures of end-use equipment should be followed . Absolute Maximum Ratings Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are absolute stress ratings only, functional operation of the device is not implied at these or any other conditions in excess of those given in the operations sections of the data sheet. Exposure to absolute maximum ratings for extended periods can adversely affect the device reliability. Parameter Device Symbol Min Max Unit VIN -0.3 54 Vdc Input Voltage* Continuous Non- operating continuous VIN -0.3 75 Vdc All TA -40 85 °C All Tstg -55 125 °C I/O Isolation Voltage (100% factory Hi-Pot tested) All 1500   * Input over voltage protection will shutdown the output voltage when the input voltage exceeds threshold level. Vdc Operating Ambient Temperature (See Thermal Considerations section) Storage Temperature Electrical Specifications Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. Parameter Symbol Min Typ Max Unit Operating Input Voltage Device VIN 42 48 53 Vdc Maximum Input Current IIN,max - - 8.5 Adc 2 - - 1 As (VIN=0V to 53V, IO=IO, max) It 2 Inrush Transient All Input Reflected Ripple Current, peak-to-peak (5Hz to 20MHz, 12μH source impedance; VIN= 48V, IO= IOmax ; see Figure 9) All - 24 - mAp-p Input Ripple Rejection (120Hz) All - -50 - dB CAUTION: This power module is not internally fused. An input line fuse must always be used. This power module can be used in a wide variety of applications, ranging from simple standalone operation to being part of a complex power architecture. To preserve maximum flexibility, internal fusing is not included, however, to achieve maximum safety and system protection, always use an input line fuse. The safety agencies require a fastacting fuse with a maximum rating of 15 A (see Safety Considerations section). Based on the information provided in this data sheet on inrush energy and maximum dc input current, the same type of fuse with a lower rating can be used. Refer to the fuse manufacturer’s data sheet for further information. Data Sheet January 26, 2011 QBE025A0B Series Power Modules, DC - DC Converters: 42 – 53Vdc input; 12Vdc Output; 25A output current Electrical Specifications (continued) Parameter Output Voltage Set-point Device Symbol All VO, set All VO Min Typ Max 12 Unit Vdc (VIN=IN, min, IO=IO, max, TA=25°C) Output Voltage 11.4  12.6 % VO, set (Over all operating input voltage, resistive load, and temperature conditions until end of life) Output Regulation Line (VIN=VIN, min to VIN, max) All  0.2 % VO, set Load (IO=IO, min to IO, max) All  3 % VO, set Temperature (Tref=TA, min to TA, max) All  150 mV RMS (5Hz to 20MHz bandwidth) All  70 Peak-to-Peak (5Hz to 20MHz bandwidth) All Output Ripple and Noise on nominal output (VIN=VIN, nom and IO=IO, min to IO, max)  200 External Capacitance All CO, max   Output Current All Io 0 Output Current Limit Inception All IO, lim  All η All 12V  mVrms  mVpk-pk 10,000 μF 25 Adc 28.5  Adc __ 94  % fsw  300  kHz Vpk ts  __ 2 200  __ %VO, set s Vpk ts __ __ 2 200 __ %VO, set s Efficiency VIN= VIN, nom, TA=25°C IO=IO, max , VO= VO,set Switching Frequency Dynamic Load Response (Io/t=1A/10s; Vin=Vin,nom; TA=25°C; Tested with a 10 μF aluminum and a 1.0 μF tantalum capacitor across the load.) Load Change from Io= 50% to 75% of Io,max: Peak Deviation Settling Time (Vo