DIONICS, INC. Phone: (516) 997-7474 Fax: (516) 997-7479 Website: www.dionics-usa.com 65 Rushmore Street Westbury, NY 11590 DI-302 LEVEL-SHIFTED GAS DISCHARGE DISPLAY SEGMENT DRIVER General Description: The DIONICS DI-302 is designed to drive gas discharge digital display devices from signals developed in MOS or TTL circuitry. Each output constitutes a switched constant current sink with a compliance of up to 100V. This output level can absorb large fluctuation of supply voltage. The signal is boosted in level by up to 125V. This eases interfacing between logic circuitry and display, thus reduces costs. Circuit Schematic (Each Section) Input A Output Features: ü ü ü ü ü ü ü ü ü Monolithic Silicon Dielectrically Isolated Integrated Circuit Programmable Constant Current Output Current Output Range: 0.1 - 2.5mA 125 Volt Operation Plastic 18-Pin DIP Package Level Shifted For Ease Of Use MOS and TTL Compatibility Eight-Channel Operation Pin For Pin Replacement for Sprague UDN 7183A, UDN 7184A or UDN 7186A V- Package Layout: Pin Connections DIONICS INC. DI-302 Out1 Out2 Out3 Out4 Out5 Out6 Out7 Out8 18 17 16 15 14 13 12 11 10 1 2 3 4 5 6 7 8 9 In1 In2 In3 In4 In5 In6 In7 In8 A V- 0.250 0.900 0.185 0.020 0.025 0.070 01/2002 Absolute Maximum Rating (Ta = 25 0C) Characteristic Symbol Notes Limits Units Supply Voltage VMeasured With Respect to Terminal “A” -125 V Input Voltage Vin Measured With Respect to Other Terminal ± 20 V Input Voltage VIA Measured With Respect to Terminal “A” 20 V Output Voltage Vo Measured With Respect to V 100 V Output Current Io 2.5 mA Power Dissipation PD Derate at 8 mW/ 0C Above 250C Ambient 800 mW Storage Temperature Ts -55 to +125 0C 0 Operating Temperature* To 0 to +70 C 0 0 * Ceramic (-20 C to +85 C) Electrical Characteristics (Ta = 25 0C) Parameter Symbol Output Saturation Voltage Vo (SAT) Output Leakage Current Io (OFF) Output Current Match ∆Io / Io Output Current Io (ON) Conditions Min. Typ. Max. Units Io = 1mA; Vs = 100V 15 V Vs = 125V; Vo = 100V; VIA = 0V 1 10 µA Vs = 100V; Vo = 60V; VIA = 1.2V ± 10 ± 20 % Vs = 100V; Vo = 60V; VIA = 1.2V 0.5 0.85 1.2 mA Typical Application: A Via + Vs + -14 V To Setting Circuit 7 8 5 IN1 D4 11 5 10 4 IN2 3 IN3 D3 10 4 11 1 14 D2 9 D1 8 CT 7001 CLOCK / CALENDAR DIONICS DI-502 3 ANODE DRIVER 23 25 27 Vdd 26 1.5K Vss 1 Sa 18 Sb 17 Sc 16 Sd 15 Se 19 Sf 20 Sg 21 Spm 14 + Vo Simplified V Test Circuit 12 TTL Interface DI-302 +5V 27K -14 V 22 Ii +100 V 60 Hz 0.01 24 Io D1 D2 D3 D4 A +5V (Vcc) BURROUGHS CD-4073-GM Sa Sb Sc Sd Se Sf V -100V V -100V Sg Spm 150pF MOS Interfaces 1 2 3 4 DIONICS 5 DI-302 6 CATHODE 7 DRIVER 8 9 18 17 16 15 14 13 12 11 10 DI-302 -100 V A -15V (Vdd) 3.9K -14V + 10 uF DI-302 Display Intensity -15V (Vdd) A V -100V