SMFL Datasheet | Interpion semiconductor

Features - Fully qualified to Class H or K - - 55° to +125°C operation - 16 to 40 VDC input - Fully Isolated - Magnetic feedback - Fixed frequency, 600 k Hz typical - Topology - Single Ended Forward - Inhibit input side and output side - Sync function - 50 V for up to 120 ms transient protection VDC Output single 3.3 5 12 15 dual ±5 ±12 ±15 models - Output trim on single output models - Indefinite short circuit protection - Up to 85% efficiency / 43 W/in3 - Parallelable up to 148 watts - Remote sense on single output models The SMFL Series™ 28-volt DC/DC converters are rated up to 65 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 148 watts. The welded, hermetically sealed package is only 3.0 x 1.5 x 0.40 .. inches, giving the series an overall power density of up to 45 watts per cubic inch. description Inhibit Screening SMFL converters offer the following screening options: Space Prototype (O), Class H, or Class K. Radiation tolerant to Radiation Hardness Assurance (RHA) levels of “-” (O) or “R”, per MIL-STD-38534. Interpoint model numbers use an “O” in the RHA designator position to indicate the “-” (dash) Radiation Hardness Assurance level of MIL-PRF-38534, which is defined as “no RHA”. See “Class H and K, QML Screening” tables for more information.   The SMFL 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 and no generation of switching noise. An open collector TTL patible low (<0.8 volts) is required to inhibit the converter between INH1 (pin 4) and Input mon (pin 2). An open collector TTL patible low (<0.5 volts) is required to inhibit the converter between INH2 (pin 12) and Output mon...