FW250H1 and FW300H1 Power Modules dc-dc Converters 36 Vdc to 75 Vdc Input, 24 Vdc Output 250 W to 300 W
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Data Sheet September 2001 FW250H1 and FW300H1 Power Modules dc-dc Converters 36 Vdc to 75 Vdc Input, 24 Vdc Output 250 W to 300 W The FW250H1 and FW300H1 Power Modules use advanced, surface-mount technology and deliver high-quality, compact, dc-dc conversion at an economical price. s Redundant and distributed power architectures s Computer Equipment s Communications equipment Options s Heat sink available for extended operation s Size mm x mm x mm in. x in. x in. s Wide input voltage range s High efficiency 89% typical s Parallel operation with load sharing s Output voltage set-point adjustment trim s Thermal protection s Synchronization s Power good signal s Current monitor s Output overvoltage and overcurrent protection s Constant frequency s Case ground pin s Input-to-output isolation s Remote sense s Remote on/off s ISO* 9001 Certified manufacturing facilities s UL† 60950 Recognized, C22.2 No. 60950-00 Certified, and VDE§ 0805 EN60950 Licensed s CE mark meets 73/23/EEC and 93/68/EEC directives** The FW250H1 and FW300H1 Power Modules are dc-dc converters that operate over an input voltage range of 36 Vdc to 75 Vdc and provide a precisely regulated dc output. The outputs are fully isolated from the inputs, allowing versatile polarity configurations and grounding connections. The modules have maximum power ratings from 250 W to 300 W at a typical full-load efficiency of Two or more modules may be paralleled with forced load sharing for redundant or enhanced power applications. The package, which mounts on a printed-circuit board, accommodates a heat sink for high-temperature applications. * ISO is a registered trademark of the International Organization for Standardization. † UL is a registered trademark of Underwriters Laboratories, Inc. CSA is a registered trademark of Canadian Standards Assn. § VDE is a trademark of Verband Deutscher Elektrotechniker e.V. ** This product is intended for integration into end-use equipment. all the required procedures for CE marking of end-use equipment should be followed. The CE mark is placed on selected products. FW250H1 and FW300H1 Power Modules dc-dc Converters 36 Vdc to 75 Vdc Input, 24 Vdc Output 250 W to 300 W Data Sheet September 2001 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 Unit Input Voltage Continuous Transient 100 ms VI, trans I/O Isolation Voltage 1500 Operating Case Temperature See Thermal Considerations section and Figure Storage Temperature Tstg Electrical Specifications Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. Table Input Specifications Parameter Operating Input Voltage Maximum Input Current VI = 0 V to 75 V FW250H1 FW300H1 Maximum Input Current VI = 0 V to 75 V FW250H1 FW300H1 Inrush Transient Input Reflected-ripple Current, Peak-to-peak 5 Hz to 20 MHz, 12 µH source impedance see Figure Input Ripple Rejection 120 Hz Unit II, max The temperature at this location should not exceed 100 °C. The maximum case temperature can be limited to a lower value for extremely high reliability. The output power of the module should not exceed the rated power for the module as listed in the Ordering Information table. For additional information about these modules, refer to the Thermal Management for FC- and FW-Series 250 W Board-Mounted Power Modules Technical Note TN96-009EPS . Heat Transfer Without Heat Sinks Derating curves for forced-air cooling without a heat sink are shown in Figures 21 and These curves can be used to determine the appropriate airflow for a given set of operating conditions. For example, if the unit with airflow along its length dissipates 20 W of heat, the correct airflow in a 40 °C environment is m/s 200 ft./min. . 70 m/s 800 ft./min. m/s 700 ft./min. m/s 600 ft./min. m/s 500 ft./min. m/s 400 ft./min. m/s 300 ft./min. m/s 200 ft./min. m/s 100 ft./min. 10 m/s 20 ft./min. NAT. CONV. 0 10 20 30 40 50 60 70 80 90 100 LOCAL AMBIENT TEMPERATURE, TA °C 8-1315 Figure Convection Power Derating with No Heat Sink Airflow Along Width Transverse 70 m/s 800 ft./min. m/s 700 ft./min. m/s 600 ft./min. m/s 500 ft./min. m/s 400 ft./min. m/s 300 ft./min. m/s 200 ft./min. m/s 100 ft./min. 10 m/s 20 ft./min. NAT. CONV. 0 10 20 30 40 50 60 70 80 90 100 LOCAL AMBIENT TEMPERATURE, TA °C 8-1314 Figure Convection Power Derating with No Heat Sink Airflow Along Length Longitudinal Heat Transfer with Heat Sinks The power modules have through-threaded, M3 x mounting holes, which enable heat sinks or cold plates to be attached to the module. The mounting torque must not exceed N-m 5 in.-lb. . For the screw attachment from the pin side, the recommended hole size on the customer’s PWB around the mounting holes is ± inches. If a larger hole is used, the mounting torque from the pin side must not exceed N-m in.-lbs. . Thermal derating with heat sinks is expressed by using the overall thermal resistance of the module. Total module thermal resistance is defined as the maximum case temperature rise max divided by the module power dissipation PD : The location to measure case temperature TC is shown in Figure Case-to-ambient thermal resistance vs. airflow for various heat sink configurations is shown in Figure 23 and Figure These curves were obtained by experimental testing of heat sinks, which are offered in the product catalog. Tyco Electronics Corp. FW250H1 and FW300H1 Power Modules dc-dc Converters 36 Vdc to 75 Vdc Input, 24 Vdc Output 250 W to 300 W Data Sheet September 2001 Thermal Considerations continued Heat Transfer with Heat Sinks continued CASE-TO-AMBIENT THERMAL RESISTANCE, °C/W 1/2 IN. HEAT SINK 1 IN. HEAT SINK 1/2 IN. HEAT SINK 1/4 IN. HEAT SINK NO HEAT SINK 500 600 Ordering Information Please contact your Tyco Electronics’ Account Manager or Field Application engineer for pricing and availabilty. Input Voltage 48 V 48 V Output Voltage 24 V 24 V Output Power 250 W 300 W Device Code FW250H1 FW300H1 Comcode 108026840 107430324 Tyco Electronics Corp. FW250H1 and FW300H1 Power Modules dc-dc Converters 36 Vdc to 75 Vdc Input, 24 Vdc Output 250 W to 300 W Ordering Information continued Table Device Accessories Accessory 1/4 in. transverse kit heat sink, thermal pad, and screws 1/4 in. longitudinal kit heat sink, thermal pad, and screws 1/2 in. transverse kit heat sink, thermal pad, and screws 1/2 in. longitudinal kit heat sink, thermal pad, and screws 1 in. transverse kit heat sink, thermal pad, and screws 1 in. longitudinal kit heat sink, thermal pad, and screws 1/2 in. transverse kit heat sink, thermal pad, and screws 1/2 in. longitudinal kit heat sink, thermal pad, and screws Dimension are in millimeters and inches . Data Sheet September 2001 Comcode 847308335 847308327 847308350 847308343 847308376 847308368 847308392 847308384 1/4 IN. 1/2 IN. 1 IN. 1/2 IN. Figure Longitudinal Heat Sink 8-2830 1/4 IN. 1/2 IN. 1 IN. 1/2 IN. Figure Transverse Heat Sink 8-2831 Tyco Electronics Corp. FW250H1 and FW300H1 Power Modules dc-dc Converters 36 Vdc to 75 Vdc Input, 24 Vdc Output 250 W to 300 W Data Sheet September 2001 Tyco Electronics Power Systems, Inc. 3000 Skyline Drive, Mesquite, TX 75149, USA +1-800-526-7819 FAX +1-888-315-5182 Outside U.S.A. +1-972-284-2626, FAX +1-972-284-2900 Tyco Electronics Corportation reserves the right to make changes to the product s or information contained herein without notice. No liability is assumed as a result of their use or application. No rights under any patent accompany the sale of any such product s or information. 2001 Tyco Electronics Power Systems, Inc., Mesquite, Texas All International Rights Reserved. Printed in U.S.A. September 2001 DS00-158EPS Printed on Recycled Paper |
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