NTE2030 Integrated Circuit High Voltage Segment Driver for Gas Discharge Tubes Description: The NTE2030 is capable of driving 8 segments of a high voltage display tube with a constant output sink current, which can be adjusted by external program resistor, Rp. The program current is half that of output “ON” current. In the “OFF” state the outputs can tolerate more than 80V. The ratio of “ON” output currents is within ±10%. Inputs have negative clamp diodes. Active high input logic. The main application of the device is to interface MOS circuits to high- voltage displays. Features: D Versatile Circuits for a Wide Range of Display Applications D High Breakdown Voltages D Low Power Dissipation Absolute Maximum Ratings; Input Voltage (Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 20V Output Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85V Operating Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0° to +70°C Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 65° to +150°C Lead Temperature (During Soldering, 10sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +300°C Note 1 “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. Except “Operating Temperature Range” they are note meant to imply that the devices should be operated at these limits. The table of “Electrical Characteristics” provides conditions for actual device operation. Note 2 All voltage for NTE2030 with respect to VCC = 0V. DC Electrical Characteristics: (Note 2 & Note 3) Parameter Symbol Test Conditions Input Current II VIN = 6.0V Logical “0” Input Current IIL IOUT = 5.0µA, VOUT = 75V Logical “1” Input Current IIH IOUT = 1.4mA, IIP = 850µA, VOUT = 50V Input Clamp Voltage VI IIN = -1.0mA, TA = +25°C Min Typ Max Unit 150 250 350 µA - - 7.0 µA 80 - - µA - -0.68 -0.85 V Note 2 All voltage for NTE2030 with respect to VCC = 0V. Note 3 Unless otherwise specified, Min/Max limits apply across the 0°C to +70°C. All typicals are given for TA = +25°C. DC Electrical Characteristics (Cont’d): (Note 2 & Note 3) Parameter Symbol Output Breakdown Voltage VOH IOUT = 100µA, IIN = 0µA Output Leakage Current ICEX VOUT = -75V, -0.1mA ≤ IIN ≤ 7.0µA Prog Input Voltage Logical “0” Output Current Output Current Ratio IPROG IOL ∆IO Test Conditions Min Typ Max Unit 80 - - V - 0.02 5.0 µA 1.8 2.3 - V - 4.0 4.5 IIP = 150µA 240 300 360 µA IIP = 400µA 680 800 920 µA IIP = 850µA 1.53 1.7 1.87 mA 0.9 1.0 1.1 IIP = 150µA VOUT = 50V, 80µA µ ≤ IIN ≤ IIP IOUT b Ref = 1.7mA, VOUT = 50V Note 2 All voltage for NTE2030 with respect to VCC = 0V. Note 3 Unless otherwise specified, Min/Max limits apply across the 0°C to +70°C. All typicals are given for TA = +25°C. Note 4 Supply currents specified for any one input = - 1.0V. All other inputs = - 5.5V and selected output having 16mA load. AC Electrical Characteristics: (TA = +25°C, unless otherwise indicated) Parameter Symbol Test Conditions Min Typ Max Unit Propagation Delay to a Logical “0” from Input to Output tpd0 RP = 6k to 6V, ROUT = 1k to 6V - 37 100 ns Propagation Delay to a Logical “1” from Input to Output tpd1 Input Ramp Rate ≤ 15ns, Freq = 1MHz, DC = 50%, Amplitude = 6.0V - 92 200 ns Note 2 All voltage for NTE2030 with respect to VCC = 0V. Note 3 Unless otherwise specified, Min/Max limits apply across the 0°C to 70°C. All typicals are given for TA = +25°C. Note 4 Supply currents specified for any one input = - 1.0V. All other inputs = - 5.5V and selected output having 16mA load. Pin Connection Diagram Current 1 18 VDD Input 1 2 Input 2 3 17 Output 2 16 Output 3 Input 3 4 15 Output 4 Input 4 5 14 Output 5 Input 5 6 Input 6 7 13 Output 6 12 Output 7 Input 7 8 11 Output 8 Input 8 9 10 Substrate (GND) 9 1 10 18 .300 (7.62) .945 (24.0) .260 (6.6) .160 (4.06) Max .100 (2.54) .800 (20.32) .115 (2.92) Min