HIC (DC power input) HIC for 2-Phase Stepping Motor PMM2301 Micro Step Outline The Stepping motor driver IC “PMM2301” is a power hybrid IC (HIC) packaging the integrated excitation mode generation circuits and related switching elements for 2-phase stepping motor driving. This product is developed for the purpose to further simplify 2-phase stepping motor use, as combined only with a few peripheral parts to configure a 2-phase stepping motor driver. Characteristics • • • • • Sine wave driven micro-step driver. The current detection resistor is incorporated. MOSFET is used for the power driving circuit to reduce heating. Totally packaged to reduce parts for the peripheral circuit. Enables selection from the 5 various excitation modes by the external bit signal. Maximum Rating (Tc=25˚C) Condition Rated value Unit Source voltage –1 Item VCC1 max Symbol VCC2=0V 52 V Source voltage –2 VCC2 max with no signal 7 V Input voltage Vin max Logic input terminal 7 V Phase current IOH max 0.5sec,1pulse,VCC1 applied 4 A Operating temperature on PCB TC max – 105 ˚C Junction temperature Tj max – 150 ˚C Conservation temperature Tstg – –40~125 ˚C Recommended Operating Conditions (Ta=25˚C) Item 111 Condition Rated value Unit Source voltage –1 VCC1 Symbol with signal 10~45 V Source voltage –2 VCC2 with signal 5.0±5% V Input voltage VIH – 0~VCC2 V Phase current IOH Duty 50% 3 A Clock frequency Clock – DC~50 kHz Withstand voltage of phase driver VDSS – 100 V Dimensions (Unit: mm) 67 60 1 1 PMM2301 22 +0.2 +0.2 0.5–0.05 2–3.6 PMM8713PT 9 4 VCC2 VCC2 Clock CW/CCW Reset Return Enable M0I M01 M02 GND PMM2101 Terminal name 0.4–0.05 2.9 (9) 21x2=42 PMM2301 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 25.5 Pin No. B B P.GND A P.GND B A A VCC2 Vref Mode 1 Mode 2 Mode 3 16 Terminal name 11 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 5.6 Pin No. Each Terminal Function Terminal name Function Functioning condition Vref Motor current setting input – Clock Motor driving pulse input Mode 3=”H”level: Operates at rising edge CW/CCW Motor rotation direction setting input Reset System reset Reset=”L” Return Forced return to phase origin Forced shift to the origin of the present energization phase with Return=”H”. Enable Power OFF input Enable=”L” M0I Phase origin monitor output “L” level output at the phase origin. M01,M02 Monitor output on phase Mode 3=”L”level: Operates at rising and falling edges “H” level= CW rotation “L” level= CCW rotation Outputs level signal on the present phase energization status. energization status B phase _ A phase _ B phase H L L H L H L H Phase coordinate A phase M01 M02 Energization Mode Table Input condition Energization mode Mode 1 Mode 2 Mode 3 1 step angle (degree) Number of basic angle division L L H 2EX 1.8 1 /1 H L H 1–2EX 0.9 1/2 L H H W1–2EX 0.45 1/4 H H H 2W1–2EX 0.225 1/8 H H L 4W1–2EX 0.1125 1/16 • Conditioned on the Mode 3=L, one pulse operation is performed at every rising and falling edge of the clock pulse. Accordingly, the operation becomes unstable if the driving pulse duty ratio deviates from 50%. 112 HIC (DC power input) Electrical Characteristics (Tc=25˚C, Vcc1=24V, Vcc2=5V) Rating Item Symbol Condition Unit Min. Standard Max. VCC2 Power current ICCO Enable=”L” – 4.5 Effective output current Io ave Each phase R/L=3.5Ω/3.8mH 0.45 0.50 0.55 A V 15 mA Vref=0.6V Forward direction voltage of FET diode Vdf If=1A – 1.2 1.8 Output saturating voltage Vsat RL=7.5Ω (I 3.0A) – 1.4 2.6 V “H” level input voltage VIH 9~11,14~18 pins 4.0 – – V “L” level input voltage VIL 9~11,14~18 pins – Input current IIL 9~11,14~18 pins=GND level 125 Vref input voltage Vr 8-pin 0 – VCC2/2 V Vref input curren Ir 8-pin – 1 – µA VOH 19~21 pins I=3mA 2.4 – – V – – 0.4 V – 250 1.0 V 510 µA Pull-up resistor 20kΩ “H” level output voltage M0I,M01,M02 I=–3mA VOL “L” level output voltage 19~21 pins I=3mA M0I,M01,M02 I=3mA – FC PWM frequency 37 47 57 kH Example of Application Circuit VCC2(5V) PMM2301 VCC1 7 19 12 20 13 21 9 6 10 5 11 2 Clook 14 1 CW/CCW 15 Reset 16 Return 17 Endde 18 10~45V External output White Orange + Blue Energization mode setting C1 Red Yellow Stepping motor 3 4 8 22 P.GND R1 + Vref C2 R2 GND Recommended circuit constants C1 C2 100µF OR OVER 10µF • Determine on the R1 and R2 constants based on the Vref voltage calculated from the following formula. Vref(V)=Motor current adjusted value (A/phase) x 0.6 113 Black