dionics, inc. 65 rushmore street westbury, ny 11590 phone: (516) 997 - 7474 fax: (516) 997 - 7479 website: www.dionics - usa.com dih - 135 power mosfet dual n/c spst photovoltaic dc relay features: package contains two n/c dc relays; fast switch ing speeds optically isolated to 400v dc . 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. y - level mil - screening available ( dih - 135y ) application s: replacement 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 - 135 is a state - of - t he - art photovoltaic solid state relay designed for 28v 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 mosfet outputs. the normally closed (n/c) outputs both operate dc. each relay, a or b, is capable of carrying 300ma dc continuous current and 500ma dc peak current. each led optically couples to a photovoltaic (pv) ic chip which responds by generating a voltage. this voltage is internally connected to the gate and source terminals of the output mosfets, thus controlling their current. the dih - 135 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 - 135 equivalent circuit a - 1 ; b - 5 led pv 100 ohms dep. turn - off circuit a - 2 ; b - 6 rs a - 3 ; b - 7 a - 4 ; b - 8 r npn * 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 - 135 0.020 0.300 mi n . 12 /2001
dih - 135: p ower mosfet dual spst photovoltaic 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. ma x. unit i in input current 15.0 20.0 25.0 ma v in input voltage drop 1.2 ? 1.5 v v rev. reverse voltage ? ? 10.0 v v on on state voltage 1.2 ? ? v v off off state voltage ? 3.0 4.0 v v output characteristics symbol parameter typ. ma x. unit condition i load load current ? 300 / 500 ma continuous / peak r on on resistance ? 5 w w i in =25 (ma); i load = 100 (ma) @ t c = 85 0 c ? 7 w w i in =25 (ma); i load = 100 (ma) r iso input/output resistance 10 8 ? w w i leak leakage current ? 100 m m a i in =25 (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 dc 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 1 x 10 - 5 atm cc/sec + fine 5 x 10 - 8 atm cc/s ** * * when screened to mil - specs. 12 /2001
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