D2805D Datasheet | International Rectifier

Description The D-Series of DC-DC converters are low power radiation tolerant, high reliability devices designed for hostile radiation environments such as those encountered by geostationary earth orbit satellites, deep space probes and munication systems. Features include small size, high efficiency, low weight, and a good tolerance to total ionizing dose, single event effects, and environmental stresses such as temperature extremes, mechanical shock, and vibration. All ponents are fully derated to meet the requirements of EEE-INST-002 and MIL-STD-1547B. Extensive documentation including worst case analysis, radiation susceptibility, thermal analysis, stress analysis, and reliability analysis are available. The D-Series converters have two outputs, each is independently regulated. Two versions exist; One version providing two positive outputs and one version providing one negative and one positive output. The D-Series converters incorporate a fixed frequency fly back power converter and internal EMI filter that meets the requirements for most major satellite power buses. The converters can be remotely turned on and off via an inhibit pin. Additional inhibit pins are also included to control the outputs individually. This feature facilitates turn-on outputs sequencing if desired. Each converter is encased in a cold rolled steel hermetic package. The package measures 1.80"L x 1.40"W x 0.42"H and weighs less than 55 grams. The package utilizes rugged ceramic feed-through copper pins and is hermetically sealed using parallel seam welding. Two package options are available. Please refer to page 9 for I/O configurations. Environmental screening includes temperature cycling, constant acceleration, fine and gross leak, and burn-in as specified by MIL-PRF-38534 for class H hybrids. Non-flight versions of the D-Series converters are available for system development purposes. Variations in electrical specifications and screening to meet custom requirements can be...