dionics, inc. phone: (516) 997 - 7474 65 rushmore street fax: (516) 997 - 7479 westbury, ny 11590 website: www.dionics - usa.com level - shifted gas discharge display digit d rivers di - 500b di - 502b general description: the dionics di - 500b and di - 502b circuits are designed for interfacing between mos or ttl circuitry and gas discharge display panels. each section of these devices is made up of a switched constant current level shifter - capable of high voltage operation - and a pnp - npn driver transistor pair. the constant current operation of the level shifter stage results in low power dissipation. input circuitry is suitable for open drain pmos, cmos, open - collector or stand ard ttl. features: level shift capability: 125v for di - 502b 200v for di - 500b mos and ttl compatibility pin for pin replacements for sprague udn - 6144a low power dissipation reliable dielectric isolation process package layout: 0.760 max. 0.070 dionics inc DI-500B 0.185 0.020 0.025 0.250 01/2002 v+ circuit schematic (each section) output input 3 out2 2 nc pin connections out1 nc 13 in4 in3 1 in2 in1 11 gnd 10 v + 9 14 8 7 nc 6 nc 5 out4 4 out3 12
abs olute maximum rating (ta = 25 0 c) characteristic symbol notes limits units supply voltage di - 500b di - 502b v + v + measured with respect to gnd measured with respect to gnd 200 125 v v input voltage v in measured with re spect to gnd 35 v output voltage v out measured with respect to v + terminal 90 v output current i out 40 ma power dissipation di - 500b p d derate at 6 mw/ 0 c above 25 0 c ambient 600 mw di - 502b p d derate at 6 mw/ 0 c above 25 0 c ambient 600 mw storage temperature t s - 55 to +125 0 c operating temperature t o 0 to +70 0 c electrical characteristics (ta = 25 0 c) parameter symbol notes conditions typ. max. units output saturation voltage v out (sat) v + = 1 80v (di - 500b); v+ = 100v (di - 502b); measured with respect to v+ terminal. i o = 25ma; v i = 2.4v 3 10 v output leakage current i out (off) v + = 180v (di - 500b); v+ = 100v (di - 502b). v o = 90v; v i = 0.4v 0.1 10 a input current i in (on) v i = 2.4v 340 400 a supply current i+ v + = 180v (di - 500b); v+ = 100v (di - 502b); one input at 3.5v, others at 0.4v. v i = 2.4 v; i o = 0 0.5 2.0 ma typical application: vss 5 to setting circuit 4 19 vdd 5 15 9 -15 v clock / calendar ct- 7001 7 sa 16 spm 11 60 hz 8 27 dionics inc. DI-500B d4 18 sg 10 7 -15v 24 d3 burroughs cd-4073-gm sf 6 d2 spm se 4 18 d1 sg sd in3 3 17 8 sf sc in2 -15 v 16 sb 9 in1 15 sa 8 d1 13 10 se 150pf 1.5k 17 23 d2 12 11 sd +180 v 2 0.01 14 25 d3 11 12 sc 1 26 d4 10 14 sb 27k dionics inc. di-210 22 3 14 1 21 vz = 7v 1 4 5 3 20 v in + 200v + gnd - r load 2.5k simplified test circuit + - v + 80 v
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