SMFLHP Datasheet | Interpoint Corporation Company

FEATURES - - - - - - - - - - - - - - Fully qualified to Class H or K - 55° to +125°C operation 19 to 40 VDC input Fully Isolated Magnetic feedback Fixed frequency, 600 k Hz typical Topology - Single Ended Forward Inhibit function - input and output Sync function Output trim on single output models Indefinite short circuit protection Remote sense on single output models Up to 87% efficiency Parallelable up to 270 watts DC/DC CONVERTERS 28 VOLT INPUT SMFLHP SERIES 100 WATT MODELS VDC OUTPUT SINGLE 3.3 5 12 15 DUAL ±5 ±12 ±15 .. Size (max.): 3.005 x 1.505 x 0.400 inches (76.33 x 38.23 x 10.16 mm) See cases “U maximum dimensions” and “U” for dimensions. Weight: 86 grams maximum Screening: Space Prototype, Class H, or Class K Radiation hardness levels O or R See “QA Screening: Class H and K, QML” for more information. Available configurations: OO, HO, HR, KR DESCRIPTION The SMFLHP Series™ 28 volt DC/DC converters are rated up to 100 watts output power over a - 55° to +125°C temperature range with a 28 Vdc nominal input. On dual output models, up to 70% of the rated output power can be drawn from either the positive or negative outputs. Current sharing allows the units to be paralleled for total power of up to 270 watts. The welded, hermetically sealed package is only 3.005 x 1.505 x 0.400 inches, giving the series an overall power density of up to 67 watts per cubic inch. INHIBIT The SMFLHP Series converters have two TTL patible inhibit terminals (INH1 and INH2) that can be used to disable power conversion, resulting in a very low quiescent input current. An open collector TTL patible low (<0.8 volts) is required between INH1 (pin 4) and Input mon (pin 2) to inhibit the converter. An open collector TTL patible low (<0.5 volts) is required between INH2 (pin 12) and Output mon (pin 8) to inhibit the converter. The application of intermediate voltages to these pins (1.5 to 10.5 volts) should be avoided. SCREENING SMFLHP converters offer screening options to Space...