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| HIC (DC power input) 3-Phase Stepping Motor Drive IC for Universal Controller PMM3501 Micro step Outline The PMM3501 IC for stepping motor drive is a power hybrid IC (HIC) that consists of an energization mode generation circuit and a switching device to drive 3-phase stepping motors in a single package. It has been developed to facilitate the use of 3-phase stepping motors more easily so that you can easily configure a micro step drive device only with this HIC and a few peripheral parts. Features * * * * * Micro step sine wave drive driver Built-in current detection resistor Adopting MOSFET as the power drive device to reduce heat generation All-in-one package reducing the number of parts of the peripheral circuit 5 energization modes available with an external bit signal Maximum ratings (TC=25C) Item Source voltage_1 Source voltage_2 Input voltage Phase current Board temperature during operation Joint temperature Conservation temperature Symbol Condition Rating Unit VCC1max VCC2max Vinmax IOmax TCmax Tjmax Tstg VCC2=0V Without signal Logic input terminal 37 7 7 6 0~+105 +150 -40~+125 V V V A C C C VCC2=5V,Clock ______ ______ 100Hz No condensation at low temperature Recommended operating conditions (Ta=15C) Item Source voltage_1 Source voltage_1 Input voltage Phase current_1 Phase current_2 Clock frequency Phase driver withstand voltage Symbol Condition With signal Without signal ______ Without heat sink Rating Unit VCC1 VCC2 VIH IO1 IO2 Clock VDSS 16~30 5.05% 0~VCC2 1.7 4.4 DC~50 60 V V V A A kHz V TC=105C,Clock 100Hz Pin 11 input frequency (pulse duty: 50%) ID=10mA(TC=25C) 35 External Figures (unit: mm) Pin connection 1. 2. 3. 4. 5. 6. 7 . 8. 9. 10. 11. 12. 13. 14. 15. 16. 17 . 18. 19. 20. 21. 22. 23. 24. 25. 26. 27 . 28. VCC1B VCC1C - PMM3101 Pin No. Name 78 70 9 UO WO VO Vz VCC1A GND2 Vref Clock Mode A Mode B Hold CW/CCW Enable Reset Mode C GND1 MOI VCC2 - PMM3501 21.5 +0.2 2-o3.6-0.1 44 1 28 4 2 (8) 27x2=54 +0.2 0.5-0.05 +0.2 0.4-0.05 28.5 2.9 UI VI WI - P .GNDA P .GNDB Electrical characteristics (TC=25C, VCC1=24V, VCC2=5V) Rating Item Symbol Condition Min Standard Max Unit - VCC2 source current Effective output current ICCO Ioe Vdf Vsat IOL VIH VIL IIL VrH Ir VOH VOL FC Enable="L" Each phase R/L=2/6mH 2W2-3phase energization 6.1 1.03 1.0 0.30 - - - 12 1.14 1.6 0.40 0.1 - mA Arms V V mA V V 0.92 - - - FET diode forward voltage Output saturation voltage Output leak current "H" level input voltage "L" level input voltage Input current If=1A(RL=23) RL=23 RL=23 Pins 11 to 18 Pins 11 to 18 Pins 11 to 18 = GND level Pull-up resistance:20k 4.0 - 1.0 550 VCC2/2 810 - 115 0 440 2.5 - 250 - A V Vref input voltage Vref input current "H" level MOI output voltage "L" level MOI output voltage Pin 10 Pin 10 = 2.5 V Internal resistance:4k 625 - - A V V kHz Pins 20 - 19 = 820k Pins 21 - 20 = 1.6k - 0.4 39 PWM frequency 23 31 36 PMM3501 HIC (DC power input) Function of each terminal Function of each terminal function Motor current setting input Pulse input for motor drive Pause input Motor rotational direction setting input Power off input System reset Rotation monitor output Input condition for operation - Vref Clock Hold CW/CCW Enable Reset MOI Mode C = "H": Rising edge operation Mode C = "L": Rising edge and falling edge operation Hold = "L" level "H" level = CW rotation "L" level = CCW rotation Enable = "L" level Reset = "L" level "H" level output once for each phase current period * The MOI output differs from the phase origin monitor output. Energization mode table Input condition Energization mode 1 step angle (degree) Basic step division Mode A L L H H H Mode B L H L H H Mode C H H H H L 2EX 2-3EX W2-3EX 2W2-3EX 4W2-3EX 1.2 0.6 0.3 0.15 0.075 1 2 4 8 16 * When Mode C = "L," 1 step operation is performed for each rising edge and falling edge of the Clock pulse. If the duty ratio of the drive pulse moves out of the adjustment significantly by 50%, operation becomes unstable. Example of Application Circuit Vcc2(5V) PMM3501 Clock Mode A Mode B Mode C Hold CW / CCW Enable Reset MOI Vref C3 10 19 9 27 28 P.GND 21 11 12 13 18 14 15 16 17 20 7 8 1 2 4 23 6 24 5 25 + C1 + C2 Vcc1 16~30 3 2 1 Stepping motor + C4 R1 R2 Recommended circuit part constants C1 470F C2 6.8F C3 0.1F C4 10F For the R1 and R2 constants, determine the Vref voltage according to the following equation. Vref (V) = motor current adjustment value (A/phase) x 0.41 Notice that 100 is recommended for R2 due to the configuration of the internal circuit of the PMM3101. Place the GND side of the source by-pass capacitor of VCC1 (C1) as close to pins 27 and 28 as possible to reduce noise. 37 |
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