1-2-3 5-Phase Stepper Motor Driver ICs SI-7510 New Pentagon Connection ■Absolute Maximum Ratings Symbol Ratings Unit Main Supply Voltage Parameter VCC1 44 V Logic Supply Voltage VCC2 7 V VIN –0.3 to VCC2 V VREF VSENCE –0.3 to VCC2 2 V V VMC3 48 V Logic Input Voltage REF Input Voltage SENCE Input Voltage Charge Pump Output Voltage Power Dissipation PD 1.6 W Operating Ambient Temperature Ta –10 to 80 °C Storage Temperature Junction Temperature T stg Tj –20 to 150 150 °C °C Remarks Except when tw<1µs ■Recommended Operating Ranges Symbol Operating Ranges Unit Main Supply Voltage Parameter VCC1 10 to 42* V Logic Supply Voltage VCC2 3 to 5.5 V REF Input Voltage VREF 0.1 to 1 V *: Insert a 5V Zener diode between VCC1 and VMC3 when using with VCC1 of 35 V or more. ■Electrical Characteristics Parameter (Ta=25°C, Vcc1=24V, VCC2=5V, unless otherwise specified) Ratings Symbol min. typ. Unit Main Supply Current ICC1 25 mA Logic Supply Current ICC2 VIL 10 1.25 mA V Logic Input Voltage Conditions max. VIH 3.75 IIL –20 20 µA VIL=0V IIH –20 20 µA VIH=5.5V ENA Input Current REF Input Current IENA IREF –100 –20 20 20 µA µA VENA=0V VREF=0 to 5.5V SENCE Voltage VSENCE SENCE Current ISENCE 20 µA 1 V IMOL=1mA V V IMOH=–1mA Logic Input Current MO Output Voltage RC Pin Threshold Voltage V 1 –20 VMOL VMOH VRCL V 4 0.5 VRCH 1.5 V RC Pin Outflow Current IRC 300 µA Charge Pump Output Voltage VMC3 VCC1+9 V High Side Output Voltage (between gate sources) VHGSL VHGSH 8.5 Low Side Output Voltage VLGL VLGH Maximum CL Frequency fck Maximum Input CL Width (on) Power-on Reset time TCON PTW Output Delay Time TIO CW/CCW, F/H Input Data Setup Time CW/CCW, F/H Input Data Hold Time 132 ICs 7.5 100 1 V V 1 V VREF=1V VSENCE=0V, 2V VRC=0V Without Zener diode V KHz 1.5 µs µs 2 µs 1 TICS 500 µs TICH 500 µs Against CL ↑ SI7510 ■Internal Block Diagram ■Pin Assignment and Function Table VCC2 VCC1 Oscillator MC2 MC3 MC1 Charge Pump OHGA OHSA OHGB OHSB OHGC OHSC OHGD OHSD OHGE OHSE Enable MO Highside Drive CL Sequencer F/H CW/CCW OLA OLB OLC OLD OLE Lowside Drive Reset RC PWM Control Ref Sense Gnd ■Typical Connection Diagram C2 C1 24V 5V VCC2 MC1 6 3 2 4 30 29 28 27 26 25 24 23 22 21 R3 5 MO 7 CL 8 Logic Signal Input and Output F/H CW/CCW Reset SI-7510 Enable 9 10 11 C4 R1Ref 4 5 10 15 3 9 1 7 14 SLA5073 8 12 13 2 6 11 OHGA OHSA OHGB OHSB OHGC OHSC OHGD OHSD OHGE OHSE 20 19 18 OLA OLB OLC 4 3 9 7 13 12 15 RC Ct tOFF=1.1*Rt*Ct 5-phase SPM New Pentagon R2 C3 IO=VRS/RS IOM=Io/2 *IOM : Motor Coil Current VCC1 MC2 MC3 1 17 16 OLD OLE 14 Sense Pins 11 to 15: NC SLA5074 Gnd 5 R1=510Ω R2=100Ω(VR) R3=20KΩ RS=0.33Ω(1 to 2W) Rt=15 to 75KΩ Ct=420 to 1100pF C1=2200pF C2=0.01µF C3=0.1µF C4=0.01µF 10 2 6 1 8 Io Rs Rt 10 15 20 25 30 35 40 45 50 55 60 65 MC1 Capacitor Connection Terminal for Charge Pump (for MC2) Function 2 3 MC3 MC2 Capacitor Connection Terminal for Charge Pump (for Gnd) Capacitor Connection Terminal for Charge Pump (for MC1) 4 VCC1 Main Supply Voltage Input 5 Enable 6 VCC2 Logic Voltage Input 7 8 MO CL Monitor to Detect Motor Position Clock 4-phase, 4-5 phase switching Output OFF 9 F/H 10 CW/CCW 11 Reset 12 13 RC Ref 14 Sense 15 Gnd 16 VOLE Low Side MOSFET Gate Connection Pin (E-phase) 17 18 VOLD VOLC Low Side MOSFET Gate Connection Pin (D-phase) Low Side MOSFET Gate Connection Pin (C-phase) 19 VOLB Low Side MOSFET Gate Connection Pin (B-phase) 20 VOLA Low Side MOSFET Gate Connection Pin (A-phase) 21 VOHSE High Side MOSFET Source Connection Pin (E-phase) 22 23 VOHGE VOHSD High Side MOSFET Gate Connection Pin (E-phase) High Side MOSFET Source Connection Pin (D-phase) Switching Between Forward and Backward Rotation Reset RC Connection for Chopping Off Time Setting Reference Voltage Input for Motor Current Setting For Motor Current Detection Gnd High Side MOSFET Gate Connection Pin (D-phase) 24 VOHG 25 VOHSC High Side MOSFET Source Connection Pin (C-phase) 26 VOHGC High Side MOSFET Gate Connection Pin (C-phase) 27 28 VOHSB VOHGB High Side MOSFET Source Connection Pin (B-phase) High Side MOSFET Gate Connection Pin (B-phase) 29 VOHSA High Side MOSFET Source Connection Pin (A-phase) 30 VOHGA High Side MOSFET Gate Connection Terminal (A-phase) Pin Name Low Level High Level Positive Edge Clock ■Input and Output Timing Chart 5 Symbol 1 ■Truth Table *Be especially careful of noise on the Vcc line. The product may malfunction if noise on the Vcc line is 0.5 V or more. 0 Pin No. 70 CW/CCW Full/Half Forward Rotation (CW) 4-phase excitation Backward Rotation (CCW) 4-5 phase excitation Enable Disable Enable Reset Enable Reset 75 CL ■External Dimensions (DIP30) Reset Enable (Unit : mm) CW/CCW F/H 8.8±0.2 OHA OHB OHC OHD OHE OLA Lot No. OLB SK OLC J APAN S I - 7510 OLD OLE MO Reset 75 CW, Full 80 85 CCW, Full 90 95 100 CCW, Half 105 CW, Half 28.2±0.3 110 CL CW/CCW F/H + 0.3 1.0 – 0.06 7.1±0.5 3.61±0.1 Enable 4.3±0.3 Reset 10.16 * Condition to Switch Input Signals OHA OHB OHC CL 0.1 0.25 –+0.0 5 OHD OLA CW/CCW OLB F/H OLC The range to Prohibit Switching The range to Prohibit Switching 500ns 500ns Switchable Range OLD OLE MO 1.778 2.8±0.2 OHE 0° to 15° 1.654 TYP 0.46±0.1 CW, Half CCW,Full Disable Disable Reset Product Mass : Approx.2g ICs 133