dionics, inc. 65 rushmore street westbury, ny 11590 phone: (516) 997 - 7474 fax: (516) 997 - 7479 website: www.dionics - usa.com dih - 143 power mosfet spst photovoltaic dc n/o relay features: ? low level logic compatibility ? thermal protection with h ysteresis ? optical isolation to 500vdc ? low on resistance , low offset voltage ? meet 28v dc system surge and spike requirements of mil std - 704. ? space efficient 6 mini pin dip hermetic package. ? current limiting ? designed to meet mil - r - 28750 ? y - level mil screenin g available applications: ? 28v dc aircraft power control & distribution ? motor control & power control ? aircraft flight control systems ? a.t.e. (automatic test equipment) ? load control from processor i/o ports ? high - side dc power switching ? power supply circuits ? medical electronics description: dih - 143 is state of the art solid state relay designed for 28v dc aircraft power applications where speed, efficiency, current overload protection and immunity to transient voltages are critical. dih - 143 is normally opened (n/o) relay capable of continuous current of 1.5a. dih - 143 contains current limiting networks and thermally sensitive integrated circuits that disable the outputs, if the output mosfet approaches an unsafe operating temperature. because the thermal ly sensitive integrated circuits have built - in hysteresis, the output mosfet is automatically restarted when a safe temperature is reached. this auto restart feature eliminates the need for system restart signals. if the overload condition continues to exi st, the cycle is repeated; if the overload condition is removed, the relay returns to normal operation. * dih - 143 schematic thermal sensor rs npn enh. led pv 1 4 100 ohms 6 3 thermal link v pin designation pin number function 1 input + 2 not connected 3 input - 4 output drain + 5 not connected 6 output source - * package lay out: 0.100 1 kovar, ni - plated glass 0.300 xxxx 0.020 0.175 0.018 typ. kovar, au - plated dih - 143 0.0 20 dionics 6 5 0.150 0.420 4 3 0.420 2 08/2001
dih - 143: power mosfet spst photovoltaic dc n/o relay electrical characteristics (@ 25 0 c unless otherwise specified): v input characteristics param eter conditions value unit control voltage ? 4 to 6 v control current ? 18 max. ma - 40 0 c t a 85 0 c 30 max. ma reverse voltage ? 10 max. v v output characteristics parameter conditions min. max unit peak current 1% duty cycle, 50 ms p ulse ? 2.5 a constant current t a = 25 0 c ? 1.5 a t a = 85 0 c ? 0.6 a on - resistance t a = 25 0 c - 40 0 c t a 85 0 c ? ? 0.50 0.85 w w w w operating voltage ? 32.5 v breakdown voltage output = open 100 ? v leakage current v out = 80v ? 100 m m a turn - on time 150 350 m m s turn - off time ? 50 m m s short circuit protection ? 3.4 a thermal resistance ? 100 0 c/w thermal tripping temp. junction ? 130 0 c thermal recovery temp. junction ? 100 0 c thermal hysterisis ? 30 0 c v environm ental conditions: operating temp. : - 20 to 75 0 c (comm.) (y - level mil.) - 55 to 125 0 c storage temp. : - 20 to 85 0 c (comm.) (y - level mil.) - 55 to 125 0 c shock: (y - level mil.) 50 g, mil - std - 202 method 202 hermeticity: gross leak (comm.) 10 - 5 atm cc/sec (y - level mil.) fine leak 5x10 - 8 atm cc/sec vibration: (y - level mil.) 20g, 10 to 2000 hz acceleration: (y - level mil.) 100 g weight: 1.5 grams td(on) vop 10% t(on) td(off) output 90% 90% 10% 10% input 0v t(off) 0v 5v 90% v general characteristics : minimum input/output isolation: 500 v dc minimum input/output resistance: 10 8 ohms typical input/output capacitance: 10pf min. transient protection capability (dv /dt ): 100v/ m s maximum power dissipation @ 25 0 c: 1w 08/2001
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