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FC100V5A 数据表(PDF) 11 Page - Power-One |
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FC100V5A 数据表(HTML) 11 Page - Power-One |
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11 / 41 page  MCD10059 Rev. 1.1, 21-Jan-10 Page 11 of 41 www.power-one.com F & FC Series DC-DC Converter Input Filters F2410 & F4810, 0-45V/0-80V, 10 Amps, SMT Mount Thermal Considerations Because of low series internal DC resistance, the F4810/F2410 filters generally do not require airflow and/or derating to ambient temperatures up to 85 ˚C, if placed and interconnected as described below. Good thermal design is consistent with appropriate placement to gain additional heat exchange through the I/O pins to the system board. For high temperature operation in low airflow environments, use of 1-2 oz copper for the external connection pads and provision for some extra copper at all four I/O pins is encouraged. Thermal derating data shown were taken on special thermal board with each input and output pin connected to 0.5 sq. in pad of 2 oz copper. To check filter thermal characteristic in an actual system environment, attach a thermocouple to the top of differential inductor, L2; it is the INDUCTOR closest to OUT+ pin. The maximum temperature at this test point should not exceed 120 ˚C, and a minimum of 5-10 ˚C headroom is suggested for better reliability. A typical application schematic is shown in Fig. 5. Either filter can be used to power one or more converters. Maximum filter output current should be limited 10 A - or less - depending upon system thermal environment. The required filter current drawn by the converter loads, IREQ’d(Filter), will be the sum of the loads of all connected converters: IREQ’d(filter) = Σ[Pi,OUT/(VIN, min * ηi, min)] [A] where: IREQ’d(filter) maximum required filter current Pi,OUT(converter) converter output power, i=1, 2… = Vi,OUT(converter) * Ii,OUT(converter) VIN, min converter input voltage ηi, min converter minimum efficiency, i=1, 2,… For applications requiring a filter current greater than 10 A, divide the converters into smaller groups and use multiple filters. Do not connect filters in parallel. Fig. 5: F4810 – Typical application C6 C3 C7 Rload2 Vin (+) Vin (-) ON/OFF Vout (+) Vout (-) TRIM SENSE (+) SENSE (-) (Top View) Converter QmaXTMSeries C9 C1 F4810 V IN- V IN+ +48V -48V +Vout -Vout P3 P4 P1 P2 + F1 12A C2 C5 Rload1 Vin (+) Vin (-) ON/OFF Vout (+) Vout (-) TRIM SENSE (+) SENSE (-) (Top View) Converter QmaXTMSeries C8 C4 (Top View) Input Filter For further information regarding connection of CM capacitors and other pertinent layout and EMC information, please refer to the Layout Considerations and EMI Considerations Application notes. DC-DC Converter (Top View) DC-DC Converter (Top View) |
类似零件编号 - FC100V5A |
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类似说明 - FC100V5A |
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