FW250F1 Lineage Power, FW250F1 Datasheet
FW250F1
Specifications of FW250F1
Available stocks
Related parts for FW250F1
FW250F1 Summary of contents
Page 1
... Heat sinks available for extended operation Description The FW250F1 and FW300F1 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 rat- ings from 250 W to 300 typical full-load efficiency of 79% ...
Page 2
... Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. Table 1. Input Specifications Parameter Operating Input Voltage Maximum Input Current ( V): I FW250F1 FW300F1 Inrush Transient Input Reflected-ripple Current, Peak-to-peak ( MHz, 12 µH source impedance; see Figure 14.) Input Ripple Rejection (120 Hz) Fusing Considerations CAUTION: This power module is not internally fused ...
Page 3
... External Load Capacitance (total for one unit or multiple paralleled units): FW250F1 FW300F1 Efficiency ( max see Figures 5, 6, and 15.): FW250F1 FW300F1 Switching Frequency Dynamic Response ( A/10µ µF aluminum and a 1.0 µF ceramic capacitor across the load; see Figures 9 through 12.): Load Change from I ...
Page 4
Converters Vdc Input, 3.3 Vdc Output; 165 W to 198 W Electrical Specifications Table 3. Isolation Specifications Parameter Isolation Capacitance Isolation Resistance General Specifications Parameter Calculated MTBF ( max Weight ...
Page 5
July 2002 dc-dc Converters Vdc Input, 3.3 Vdc Output; 165 W to 198 W Feature Specifications Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. See Feature Descriptions for further information. ...
Page 6
... Converters Vdc Input, 3.3 Vdc Output; 165 W to 198 W Characteristic Curves The following figures provide typical characteristics for the power modules INPUT VOLTAGE, V Figure 1. Typical FW250F1 Input Characteristics at Room Temperature INPUT VOL TAGE , V Figure 2. Typical FW300F1 Input Characteristics at Room Temperature ...
Page 7
... OUTPUT CU RRENT, I Figure 6. Typical FW300F1 Efficiency vs. Output Current at Room Temperature Tyco Electronics Corp 8-2226 (C) Figure 7. Typical FW250F1 Output Ripple Voltage at Room Temperature Input, and 50 A Output (A) O 8-1734 (C) Figure 8. Typical FW300F1 Output Ripple Voltage at Room Temperature and 60 A Output TIME, t (500 ns/div) ...
Page 8
... A TIME, t (500 µs/div) Note: Tested with a 10 µF aluminum and a 1.0 µF ceramic capacitor across the load. Figure 10. Typical FW250F1 Transient Response to Step Increase in Load from 50% to 75% of Full Load at Room Temperature and 48 V Input (Waveform Averaged to Eliminate Ripple Component.) ...
Page 9
July 2002 dc-dc Converters Vdc Input, 3.3 Vdc Output; 165 W to 198 W Characteristic Curves (continued) TIME ms/div) Note: Tested with a 4000 µF aluminum and a 1.0 µF ceramic capaci- tor across the ...
Page 10
Converters Vdc Input, 3.3 Vdc Output; 165 W to 198 W Safety Considerations For safety-agency approval of the system in which the power module is used, the power module must be installed in compliance with the ...
Page 11
July 2002 dc-dc Converters Vdc Input, 3.3 Vdc Output; 165 W to 198 W Feature Descriptions (continued) Remote Sense Remote sense minimizes the effects of distribution losses by regulating the voltage at the remote-sense connections. The voltage ...
Page 12
... Feature Specifications table. For example, on the 8-715 (C).b FW250F1, the V/A ratio is set case full load current the voltage on the CURRENT MON pin is 3.25 V. The current monitor signal is referenced to the SENSE(–) pin on the sec- ondary and is supplied from a source impedance of approximately 2 k ...
Page 13
July 2002 dc-dc Converters Vdc Input, 3.3 Vdc Output; 165 W to 198 W Feature Descriptions (continued) Synchronization Any module can be synchronized to any other module external clock using the SYNC IN or ...
Page 14
Converters Vdc Input, 3.3 Vdc Output; 165 W to 198 W Feature Descriptions (continued) Forced Load Sharing (Parallel Operation) (continued) When not using the parallel feature, leave the PARALLEL pin open. PARALLEL SENSE(+) SENSE(-) CASE V ...
Page 15
July 2002 dc-dc Converters Vdc Input, 3.3 Vdc Output; 165 W to 198 W Thermal Considerations Heat Transfer Without Heat Sinks Derating curves for forced-air cooling without a heat sink are shown in Figures 25 and 26. ...
Page 16
... To choose a heat sink, determine the power dissipated as heat by the unit for the particular application. Figure 29 shows typical heat dissipation for a range of output currents and three voltages for the FW250F1 and FW300F1 (continued) ...
Page 17
... Use Figures 27 and 28 to determine air velocity for the 0.5 inch heat sink. The minimum airflow necessary for the FW250F1 module depends on heat sink fin orienta- tion and is shown below: 2.0 m/s (400 ft./min.) (oriented along width) 3.0 m/s (600 ft./min.) (oriented along length) ...
Page 18
Converters Vdc Input, 3.3 Vdc Output; 165 W to 198 W Outline Diagram Dimensions are in millimeters and (inches). Tolerances: x.x mm ± 0.5 mm (x.xx in. ± 0.02 in.), x.xx mm ± 0.25 mm (x.xxx ...
Page 19
... Ð 6.68 (4.200) Output Power 165 W 198 W 66.04 (2 .60 0) 7.62 (0.300) 7. (0.3 00) (0.50 12.70 SYNC O UT (0.500) 17 .78 ( 0.700) SYNC IN 22.86 ON 0.9 00) V Ð 5.1 (0.20) Device Code Comcode FW250F1 107859886 FW300F1 107253163 30 .48 (1.2 00) 50.8 (2.00) 8-1650 (C) 19 ...
Page 20
Converters Vdc Input, 3.3 Vdc Output; 165 W to 198 W Ordering Information (continued) Table 4. Device Accessories Accessory 1/4 in. transverse kit (heat sink, thermal pad, and screws) 1/4 in. longitudinal kit (heat sink, thermal ...