40 Watt, Radiation Hardened Boost Converter

Series 3439 Product Description: is a rad hard boost converter designed for space applications to enhance battery charging from solar cells/photovoltaic arrays. This front end component is a hybrid design which expands the performance of DC/DC converters fed from its output. The 3439 is rated at 40 watts (steady-state).

Special Features	Universal Features
Optimizes energy storage for hold up during input line drop outs Eliminates CS01 effects for Ultra low ripple requirements Incorporates programmable inrush limit reverse polarity protection Contains master sync oscillator for synchronizing downstream DC/DC converters Enables low line operation of 28Vd converters Contains full MIL-STD-461 EMI filter Input Power Fail/auxiliary output function	Hermetic Thick Film Hybrid Construction Built in EMI filtering meets MIL-STD-461D Adjustable Output from 30 to 50Vdc Programmable Soft Start 300 kHz Operation for Low Ripple, Fast Response Time Survives 80V Transients/MIL-STD-704A
General Output Specifications:
Input Voltage: 28Vdc Nominal (12 to 50Vdc Continuous, 10 to 80Vdc for 1 second) Output Voltage/Current: 40Vdc nominal at 1amp (Adjustable from 30 to 50Vdc) by external programming resisitor Current rating based on 40 watt rating Operating Temperature Range: -55 to 85°C or -55 to +125°C Package and Dimensions: Several case styles are available