dionics, inc. 65 rushmore street westbury, ny 11590 phone: (516) 997 - 7474 fax: (516) 997 - 7479 website: www.dionics - usa.com dih - 137 power mosfet dual n/c spst photovoltaic ac - dc relay features: package contains two n/c ac - dc relays; fast switching speeds optically isolated to 400v dc . low level logic compatibility immune to false triggering small size, hermetic 8 - pin sip package designed to meet mil - r28750 and 28v dc system surge and spike requirement of mil std - 704. applications: rep lacement of mechanical relays motor control & power control aircraft flight control systems a.t.e (automatic test equipment) load control from processor i/o ports power supply circuits medical electronics description: the dih - 137 is a state - of - the - art photovoltaic solid state relay designed for 28v ac - dc aircraft power applications where package space - efficiency and high reliability are critical. each package contains two independent n/c relays, with separate led inputs and optically isolated power mos fet outputs. the normally closed (n/c) outputs are able to operate ac or dc. each relay, a or b, is capable of carrying 150ma dc continuous current and 250ma dc peak current. each led optically couples to a photovoltaic (pv) ic chip which responds by gen erating a voltage. this voltage is internally connected to the gate and source terminals of the output mosfets, thus controlling their current. the dih - 137 is also available screened to military specifications, as required. pin designations relay a relay b 1 input + 5 input + 2 input - 6 input - 3 output 7 output 4 output 8 output * dih - 137 equivalent circuit turn - off circuit dep. led pv 100 ohms r dep. a - 1; b - 5 a - 2 ; b - 6 a - 4 ; b - 8 a - 3 ; b - 7 * package layout : weight 1.5 grams 0.046 typ . 0.780 max . 0.010 0.270 max. 0.120 max . dionics inc . xxxx 0.100 0.040 dih - 137 0.020 0.300 mi n . 12 /2001
dih - 137: power mosfet spst photovoltaic ac - dc relay electrical characteristics (per relay @ 25 0 c unless otherwise specified): v relay a: normally closed (n/c) v relay b: normally closed (n/c) v input characteristics symbol parameter min. typ . max. unit i in input current 5.0 15.0 24.0 ma v in input voltage drop 1.3 ? 1.5 v v rev. reverse voltage ? ? 10.0 v v on on state voltage ? ? 1.2 v v off off state voltage 4.0 ? ? v v output characteristics symbol parameter typ. m ax. unit condition i load load current ? 150 / 250 ma continuous / peak r on on resistance ? 18 w w i in =18 (ma); v op =80 (v) - 40 0 c t c 85 0 c ? 28 w w i in =18 (ma); v op =80 (v) r iso input/output resistance 10 8 ? w w i leak leakage current ? 100 m m a i in = 18 (ma); v op =80 (v) v op operating voltage 30 80 v dc bv breakdown voltage ? 100 v dc t on turn - on time 150 300 m m s v in = 4.5v, p.w* = 100 m s; v op = 30v t off turn - off time 150 300 m m s v in = 4.5v, p.w =100 m s; v op = 30v v iso input - output isolation ? 400 v d c p maximum power dissipation ? 400 mw pw*: pulse width. v timing diagram td(on) vop 10% t(on) td(off) output 90% 90% 10% 10% input 0v t(off) 0v 5v 90% v environmental ratings : storage temperature: - 25 0 c to +125 0 c constant acceleration: 5000g hermeticity: + gross 1x10 - 5 atm cc/sec + fine 5 x 10 - 8 atm cc/s ** ** w hen screened to mil - specs. 12 /2001
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