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| Datasheet File OCR Text: |
| NTE7082 Integrated Circuit Stepper Motor Driver Description: The NTE7082 is a bipolar integrated circuit in a 16-Lead DIP type package intended for driving a four- phase two-state motor. The circuit consists of a bidirectional four-state counter and a code converter to drive the four outputs in the sequence required for driving a stepping motor. Features: D High Noise Immunity Inputs D Clockwise and Counter-Clockwise Operation D Reset Facility D High Output Current D Outputs Protected Against Damage by Overshoot Applications: D Automotive Industry D Industrial D Office Equipment D EDP Absolute Maximum Ratings: DC Supply Voltage, VCC1, VCC2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V Input Voltage (All Inputs), VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V Current into Pin4, IRX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120mA Output Current, IOL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500mA Operating Ambient Temperature Range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -20 to +70C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65 to +150C DC Electrical Characteristics: (VCC = 9.5V to 18V, VEE = 0V, TA = -20 to +70C unless otherwise specified) Parameter Supply Voltage Range Supply Current Symbol VCC ICC VCC1 = 12V, unloaded, all outputs HIGH, Pin4 Open Test Conditions Min 8.5 2.0 Typ - 4.5 Max 18.0 6.5 Unit V mA DC Electrical Characteristics (Cont'd): Parameter HIGH Input Voltage LOW Input Voltage HIGH Input Current LOW Input Current External Resistor (Pin4) Voltage at External Resistor LOW Output Voltage LOW Output Current HIGH Output Current VRX VOL IOL IOH Symbol VIH VIL IIH IIL (VCC = 9.5V to 18V, VEE = 0V, TA = -20 to +70C unless otherwise specified) Test Conditions Min 7.5 - - - Typ - - 1 30 - 500 700 - - Max - 4.5 - - 4.5 1000 - 500 50 Unit V V A A V mV mV mA A Count, Mode, and Reset Inputs (Pin15, Pin3, and Pin2) VCC = 12V 15%, R4 = 130 5% IOL = 350mA IOL = 500mA VO = 18V 3.0 - - - - Output 1, Output 2, Output 3, and Output 4 (Pin6, Pin8, Pin9, and Pin11) Mode Input Table: With the Mode Input (Pin3) the sequence of output signals, and hence the direction of rotation of the stepping motor, can be chosen as shown below: Counting Sequence 0 1 2 3 0 Mode = LOW L H H L L H L L H H L L H H L H H L L H L L H H L Mode = HIGH H H L L H L H H L L H L L H H Output 1 Output 2 Output 3 Output 4 Output 1 Output 2 Output 3 Output 4 Pin Connection Diagram N.C. Reset Input Mode Input External Resistor GND Output 1 N.C. Output 2 1 2 3 4 5 6 7 8 16 N.C. 15 Count Input 14 +VCC1 13 +VCC2 12 GND 11 Output 4 10 N.C. 9 Output 3 16 9 1 8 .870 (22.0) Max .200 (5.08) Max .260 (6.6) Max .100 (2.54) .700 (17.78) .099 (2.5) Min |
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