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MC3479P Datasheet(PDF) 1 Page - ON Semiconductor |
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MC3479P Datasheet(HTML) 1 Page - ON Semiconductor |
1 / 10 page © Semiconductor Components Industries, LLC, 2006 June, 2006 − Rev. 7 1 Publication Order Number: MC3479/D MC3479 Stepper Motor Driver The MC3479 is designed to drive a two−phase stepper motor in the bipolar mode. The circuit consists of four input sections, a logic decoding/sequencing section, two driver−stages for the motor coils, and an output to indicate the Phase A drive state. Features • Single Supply Operation: 7.2 to 16.5 V • 350 mA/Coil Drive Capability • Clamp Diodes Provided for Back−EMF Suppression • Selectable CW/CCW and Full/Half Step Operation • Selectable High/Low Output Impedance (Half Step Mode) • TTL/CMOS Compatible Inputs • Input Hysteresis: 400 mV Minimum • Phase Logic Can Be Initialized to Phase A • Phase A Output Drive State Indication (Open−Collector) • Pb−Free Package is Available* CW/CCW VM GND Bias/Set Phase A Logic Driver OIC Driver F/H Step Clk Clock Figure 1. Representative Block Diagram L4 L3 VD L2 L1 OIC Full/Half Step CW/CCW ORDERING INFORMATION Device Operating Temperature Range Package Shipping MC3479P TA = 0° to +70°C PDIP−16 25 Units / Rail MC3479PG PDIP−16 (Pb−Free) *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. PDIP−16 P SUFFIX CASE 648C (Top View) 1 OIC GND Clk Bias/Set 16 VM GND PIN CONNECTIONS 9 8 4 7 6 5 3 2 L1 L2 Full/Half Step VD CW/CCW Phase A L4 L3 15 14 13 12 11 10 INPUT TRUTH TABLE Input Low Input High CW CCW Full Step Half Step Hi Z Low Z CW/CCW Full/Half Step OIC Positive Edge Triggered Clk http://onsemi.com MARKING DIAGRAM A = Assembly Location WL = Wafer Lot YY = Year WW = Work Week G = Pb−Free Package MC3479P AWLYYWWG 1 16 |
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