SAA1042 Motorola, SAA1042 Datasheet
SAA1042
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SAA1042 Summary of contents
Page 1
... Stepper Motor Driver The SAA1042 drives a two–phase stepper motor in the bipolar mode. The device contains three input stages, a logic section and two output stages. The IC is contained pin dual–in–line heat tab plastic package for improved heatsinking capability. The center four ground pins are connected to the copper alloy heat tab and improve thermal conduction from the die to the circuit board ...
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... I out = 500 mA I out = 50 mA Output Leakage Current, Pin 6 = Open ( clamp max ) Clamp Diode Forward Voltage (Drop 500 mA) Clock Frequency Clock Pulse Width Set Pulse Width Set Control Voltage, High State Set Control Voltage, Low State 2 SAA1042 Symbol SAA1042V Unit V clamp 6 500 mA ...
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... Figure 6 shows the Timing Diagram. Figure 7 illustrates a typical application in which the SAA1042 drives stepper motor with a current consumption of 200 mA/coil. A bias resistor ( chosen according to Figure 2. The maximum voltage permitted at the output pin ...
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... Full Step Motor Drive Mode. Full/Half Step Input = 0 Clock Set CW/CCW Half Step Motor Drive Mode. Full/Half Step Input = 1 Clock Set CW/CCW SAA1042 Figure 3. Drive Stage Power Dissipation 5.0 4 1.0 0.7 0.5 0.3 0.2 0.1 200 300 400 500 ...
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... Selectable Step Rates with the Time Base Derived from the Line Frequency MC14046B 220 k 15 Phase 220 V Comp 0 8.2 F Figure 8. Thermal Resistance and Maximum Power Dissipation versus P.C.B. Copper Length 100 MOTOROLA ANALOG IC DEVICE DATA SAA1042 Figure 7. Typical Application VCO 4.7 nF 120 1400 Hz Printed circuit board heatsink example 2.0 oz ...
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... C 0.145 0.185 3.69 4.69 D 0.015 0.021 0.38 0.53 E 0.050 BSC 1.27 BSC F 0.040 0.70 1.02 1.78 G 0.100 BSC 2.54 BSC J 0.008 0.015 0.20 0.38 K 0.115 0.135 2.92 3.43 L 0.300 BSC 7.62 BSC 0.015 0.040 0.39 1.01 SAA1042/D ...