QBW018A0B 2002/95/EC 400LFM 73/23/EEC 93/68/EEC DS04-010 200LFM IEC60950 600LFM

April 21, 2006 QBW018A0B Series Power Modules, DC - DC Converters: 36 75Vdc Input; 12Vdc Output; 18A Output Current RoHS

Data Sheet April 21, 2006 QBW018A0B QBW018A0B Series Power Modules, DC - DC Converters: 36 75Vdc Input; 12Vdc Output; 18A Output Current RoHS Compliant Features Compliant to RoHS EU Directive 2002/95/EC 2002/95/EC (-Z versions) Compliant to ROHS EU Directive 2002/95/EC 2002/95/EC with lead solder exemption (non-Z versions) High power density: 155 W/in 3 High efficiency 93% at 12V full load Improved Thermal Performance: 12A at 70ºC at 2m/s (400LFM 400LFM) Delivers up to 18A 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 Intermediate bus voltage applications Telecommunications equipment Servers and storage applications Networking equipment (2.28 in x 1.45 in x 0.42 in) Cost efficient open frame design Single optimal regulated output 2 : 1 input voltage range Constant switching frequency Positive Remote On/Off logic Output over current/voltage protection Overtemperature protection Options Wide operating temperature range (-40°C to 85°C) Negative Remote On/Off logic ISO* 9001 certified manufacturing facilities Active load sharing (Parallel Operation) UL* 60950-1 Recognised, CSA C22.2 No. 60950 3-01 Certified, and EN 60950-1 (VDE 0805): 200112 Licensed (pending) Baseplate option (-H) Auto restart after fault shutdown Case ground pin CE mark meets 73/23/EEC 73/23/EEC and 93/68/EEC 93/68/EEC directives§ (pending) Description The QBW018A0B QBW018A0B 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 QBW018A0B QBW018A0B series provide up to 18A 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 93% at 12V full load. This leads to lower power dissipation such that for many applications a heat sink is not required. The QBW018A0B QBW018A0B series power modules are isolated dc-dc converters that operate over an input voltage range from 36 to 75 Vdc and provide a single regulated 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. * 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. * ISO is a registered trademark of the International Organization of Standards Document No: DS04-010 DS04-010 ver. 1.4 PDF name: qbus_qbw018a0b_ds.pdf Data Sheet April 21, 2006 QBW018A0B QBW018A0B Series Power Modules, DC - DC Converters: 36 75Vdc Input; 12Vdc Output; 18A Output Current 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 Continuous VIN -0.3 75 Vdc Non- operating continuous VIN -0.3 80 Vdc All TA -40 85 °C All Tstg -55 125 Input Voltage* Operating Ambient Temperature (See Thermal Considerations section) Storage Temperature °C I/O Isolation Voltage All 1500 * Input over voltage protection will shutdown the output voltage when the input voltage exceeds threshold level. Vdc 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 IIN,max - - 7 Adc 2 - - 1 As (VIN=0V to 75V, IO=IO, max) It 2 Inrush Transient All Input Reflected Ripple Current, peak-to-peak (5Hz to 20MHz, 12H 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 April 21, 2006 QBW018A0B QBW018A0B Series Power Modules, DC - DC Converters: 36 75Vdc Input; 12Vdc Output; 18A 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 25 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) External Capacitance All CO, max mVrms 70 mVpk-pk 3,000 F Output Current All Io 0 18 Adc Output Current Limit Inception All IO, lim 20 Adc All _ 93 % All fsw 300 kHz 12V Vpk ts _ 4 300 _ %VO, set s Vpk ts _ _ 4 300 _ %VO, set s Efficiency VIN= VIN, nom, TA=25°C IO=IO, max , VO= VO,set Switching Frequency Dynamic Load Response (Io/t=1A/10s; Vin=Vin,nom; TA=25°C; Tested with a 10 F aluminum and a 1.0 F tantalum capacitor across the load.) Load Change from Io= 50% to 75% of Io,max: Peak Deviation Settling Time (Vo