Data Sheet GE QBDW025A0B Barracuda* Series DC-DC Converter Power Modules 36-75Vdc Input 12.0Vdc, 25.0A, 300W Output Features RoHS Compliant Compliant to RoHS II EU Directive 2011/65/EU (-Z versions) Compliant to REACH Directive (EC) No 1907/2006 High and flat efficiency profile >95.5% at 12Vdc, 40% to 100% rated output Wide input voltage range: 36-75V dc Delivers up to 25Adc output current Remote sense and output voltage trim Fully very tightly regulated output voltage Output voltage adjust: 8.1V to 13.2V dc dc Low output ripple and noise Industry standard, DOSA compliant, Quarter brick: 58.4 mm x 36.8 mm x 11.7 mm Applications (2.30 in x 1.45 in x 0.46 in) Distributed power architectures Constant switching frequency Intermediate bus voltage applications Digital interface with PMBus Rev 1.2 Compliance Servers and storage applications Positive remote On/Off logic Networking equipment including Power over Ethernet Output over current/voltage protection (PoE) Digital interface with PMBus Rev.1.2 compliance Fan assemblies other systems requiring a tightly Over temperature protection regulated output voltage Wide operating temperature range (-40C to 85C) ANSI/ UL 60950-1-2011 Recognized, CAN/CSA C22.2 Options No.60950-1-07, Second Edition + A1:2011 (MOD) Certified Negative Remote On/Off logic (1=option code, factory IEC 60950-1:2005 (2nd edition) + A1:2009 and EN 60950- preferred) 1:2006 + A11:2009 + A1:2010 + A12:2011, and VDE 0805-1 Auto-restart after fault shutdown (4=option code, factory Licensed preferred) CE mark 2006/96/EC directives Base plate option (-H=option code) Meets the voltage and current requirements for ETSI 300- Passive Droop Load Sharing (-P=option code) 132-2 and complies with and licensed for Basic insulation rating per EN60950-1 2250 Vdc Isolation tested in compliance with IEEE 802.3 PoE standards Description The QBDW025A0B Barracuda series of dc-dc converters are a new generation of DC/DC power modules designed to support 9.6 -12Vdc intermediate bus applications where multiple low voltages are subsequently generated using point of load (POL) converters, as well as other application requiring a tightly regulated output voltage. The QBDW025A0B series operate from an input voltage range of 36 to 75Vdc and provide up to 25A output current at output voltages from 8.1V to 12V in a DOSA dc dc standard quarter brick. The converter incorporates digital control, synchronous rectification technology, a fully regulated control topology, and innovative packaging techniques to achieve efficiency approaching 96% peak at 12V output. This leads to lower dc power dissipations such that for many applications a heat sink is not required. Standard features include output voltage trim, remote sense, on/off control, output overcurrent and over voltage protection, over temperature protection, input under and over voltage lockout, power good signal and PMBus interface. 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. * Trademark of General Electric Company PMBus name and logo are registered trademarks of SMIF, Inc. UL is a registered trademark of Underwriters Laboratories, Inc. 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-user equipment . All of the required procedures of end-use equipment should be followed. IEEE and 802 are registered trademarks of the Institute of Electrical and Electronics Engineers, Incorporated. ** ISO is a registered trademark of the International Organization of Standards. May 9, 2013 2012 General Electric Company. All rights reserved. Page 1 Data Sheet GE QBDW025A0B Barracuda Series DC-DC Converter Power Modules 36-75Vdc Input 12.0Vdc, 25.0A, 300W Output 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 device reliability. Parameter Device Symbol Min Max Unit Input Voltage* Continuous VIN -0.3 75 Vdc Operating transient 100mS 100 Vdc Non- operating continuous VIN 80 100 Vdc Operating Ambient Temperature All T -40 85 C A (See Thermal Considerations section) Logic Pin Voltage (to SIG GND or VO(-)) All Vpin -0.3 3.6 Vdc TRIM/C1, C2, ADDR0, ADDR1, CLK, DATA, SMBALERT Storage Temperature All T 55 125 C stg I/O Isolation Voltage (100% factory Hi-Pot tested) All 2250 V dc * Input over voltage protection will shutdown the output voltage when the input voltage exceeds threshold level. Electrical Specifications Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. Parameter Device Symbol Min Typ Max Unit Operating Input Voltage VIN 36 48 75 Vdc Maximum Input Current I - - 12 A IN,max dc (VIN=0V to 75V, IO=IO, max) Input No Load Current All IIN,No load 80 mA (VIN = VIN, nom, IO = 0, module enabled) Input Stand-by Current All IIN,stand-by 22 mA (V = V , module disabled) IN IN, nom External Input Capacitance All 100 - - F 2 2 Inrush Transient All It - - 1 A s Input Terminal Ripple Current (Measured at module input pin with maximum specified input capacitance and 500uH inductance between voltage source All - 350 - mArms and input capacitance) 5Hz to 20MHz, VIN= 48V, IO= IOmax Input Reflected Ripple Current, peak-to-peak (5Hz to 20MHz, 12 H source impedance VIN= 48V, IO= All - 40 - mAp-p IOmax see Figure 10) Input Ripple Rejection (120Hz) All - 25 - 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 an integrated part of sophisticated 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 fast-acting fuse with a maximum rating of 30 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 manufacturers Data Sheet for further information. May 9, 2013 2012 General Electric Company. All rights reserved. Page 2