SLA7042M

SLA7042M SANKEN | Alldatasheet

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44 SLA7042M/SLA7044M

2-Phase Stepper Motor Unipolar Driver ICs SLA7042M/SLA7044M Parameter Symbol Ratings UnitsSLA7042M SLA7044M Motor supply voltage V CC 46 V FET Drain-Source voltage V DSS 100 V Control supply voltage V DD 7V Input voltage V IN −0.5 to VDD +0.5 V Output current I O 1.2 3 A Power dissipation P D 4.5 (Without Heatsink) W Channel temperature T ch +150 °C Storage temperature T stg −40 to +150 °C I Absolute Maximum Ratings I Electrical Characteristics Terminals DATA, CLOCK and STROBE Ratings Parameter Symbol SLA7042M SLA7044M Units min typ max min typ max Control supply current IDD 77 mAConditions V DD =5.5V V DD =5.5V Control supply voltage V DD 4.5 5 5.5 4.5 5 5.5 V VIH 3.5 5 3.5 5 Conditions V DD =5V V DD =5V VIL 0 1.5 0 1.5 V Conditions V DD =5V V DD =5V VH 11 VConditions V DD =5V V DD =5V II ±1 ±1 µ AConditions VDD =5V, VI=0 or 5V V DD =5V, VI=0 or 5V VREF 0.4 2.5 0.4 2.5 Conditions V DD =5V V DD =5V VREF V DISABLE VDD −1V DD V DD −1V DD terminal Conditions V DD =5V V DD =5V IREF ±1 ±1 µ AConditions VDD =5V, VI=0 or 5V V DD =5V, VI=0 or 5V V ref 00 Conditions MODE 0 MODE 0 V ref 20 20 Conditions MODE 1 MODE 1 V ref 40 40 Conditions MODE 2 MODE 2 V ref 55.5 55.5 Reference voltage Conditions MODE 3 MODE 3 % selection output voltage V ref 71.4 71.4 Conditions MODE 4 MODE 4 V ref 83 83 Conditions MODE 5 MODE 5 V ref 91 91 Conditions MODE 6 MODE 6 V ref 100 100 Conditions MODE 7 MODE 7 FET Drain-Source V DSS 100 100 Vvoltage Conditions IDSS =4mA, VDD =5V I DSS =4mA, VDD =5V FET drain leakage currentIDSS 44 mAConditions VDSS =100V , VDD =5V V DSS =100V, VDD =5V FET diode forward voltageV SD 1.2 2.3 VConditions ID =1.2A I D=3A TOFF 77 Conditions MODE 1, 2 MODE 1, 2 Chopper off time TOFF 99 µ sConditions MODE 3, 4, 5 MODE 3, 4, 5 TOFF 11 11 Conditions MODE 6, 7 MODE 6, 7 Tr 0.5 0.5 Conditions VDD =5V, ID =1A V DD =5V, ID =1A Switching time Tstg 0.7 0.7 µ s Conditions VDD =5V, ID =1A V DD =5V, ID =1A Tf 0.1 0.1 Conditions VDD =5V, ID =1A V DD =5V, ID =1A Data setup time "A" tsDAT 75 75 Conditions Inter-clock Inter-clock Data hold time "B" thDAT 75 75 Conditions Inter-clock Inter-clock Data pulse time "C" twDAT 150 150 Conditions ns Clock pulse width "D" twhCLK 100 100 Conditions Stabilization time tpsSTB 100 100 before strobe "E" Conditions Strobe=L from clock Strobe=L from clock Strobe pulse H width "F" twhSTB 100 100 Conditions 2W1-2 Phase Excitation/Micro-step Support Input voltage Input hysteresis voltage Input current Input voltage Input current DC characteristics AC characteristics

SLA7042M/SLA7044M2-Phase Stepper Motor Unipolar Driver ICs (2W1-2 Phase Excitation/Micro-step Support) SLA7042M/SLA7044M I Internal Block Diagram I Diagram of Standard External Circuit I Output Current Formula K: Reference voltage setting rate by serial signal (See the internal block diagram) IO = • K VREF 3 RS VDD AV DD B OUT A OUT A OUT B OUT B REF A REF B GND A GND B RS A RS B 71 2 9 1 0 R S R S R 2 C 1 VREF R 1 ENABLE 41 5 1 8 1 1 1 8 CLOCK A CLOCK B STROBE A STROBE B DATA A DATA B VCC C 1 : 500 to 10000pF SLA7042M SLA7044M OUT A OUT A VDD A VDD B OUT B Rs B GND B Ref B Ref A GND A Rs A DATA B DATA A CLOCK B OUT B CLOCK A STROBE B STROBE A Enable COMP Phase Vref 20% 40% 55.5% 71.4% 83% 91% 100% a PWM Reset Ph. Reset Enable COMP Phase PWM Reset Reset OFF time timer (TOFF 3-step switching) Chopper ON Noise filter (2 s) Latch Reference voltage Reference voltage abc Ph. Shift register abc Ph. Latch abc Ph.abc Shift register b c c b a Vref 20% 40% 55.5% 71.4% 83% 91% 100% µ OFF time timer (TOFF 3-step switching) Chopper ON Noise filter (2 s)µ

SLA7042M/SLA7044M2-Phase Stepper Motor Unipolar Driver ICs (2W1-2 Phase Excitation/Micro-step Support) SLA7042M/SLA7044M I External Dimensions (Unit: mm) 31±0.2 24.4±0.2 16.4±0.2 3.2±0.15x3.8 1+0.2 −0.10.65+0.2 −0.1 31.3±0.2 3.2±0.15 Part No. Lot No. 16±0.2 13±0.2 9.9±0.2 Forming No. No.871 4.8±0.2 1.7±0.1 2.45±0.2 R-End 4±0.7 0.55+0.2 −0.1 (3) 6.7±0.5 9.7+0.2 −0.1 1+0.2 −0.1 0.65+0.2 −0.1 7.5±0.6 6±0.6 2.2±0.1 0.55+0.2 −0.1 1.6±0.6 3±0.6 4.6±0.6 Forming No. No.872 φ φ Successively output this serial data and set any current. Then, determine the step time of the reference voltage Vref at STROBE signal intervals. I Serial Data Pattern See page 48 for details of PG001M serial signal gen- erator IC for SLA7042M and SLA7044M. OUT excitation (MODEχ) OUT excitation (MODE χ) CLOCK STROBE MODE0 (0%) MODE1 (20%) MODE2 (40%) MODE3 (55.5%) MODE4 (71.4%) MODE5 (83%) MODE6 (91%) MODE7 (100%) DATA Phase a b c Phase a b c

SLA7042M/SLA7044M2-Phase Stepper Motor Unipolar Driver ICs (2W1-2 Phase Excitation/Micro-step Support) SLA7042M/SLA7044M I Current Vector Locus (One step of stepper motor normalized to 90 degrees) 20 40 55.5 71.4 83 91 A B 100 100 2 3 4 9 B A To rotate the motor, enter serial data as follows: 2W1-2 phase excitation W1-2 phase excitation 1-2 phase excitation 2-2 phase excitation : Vector 1→ 5→ 9 : Vector 5 or 10 Combined Current A Current Bvector 1 100% 0% 2 100% 20% 3 91% 40% 4 83% 55.5% 5 71.4% 71.4% 6 55.5% 83% 7 40% 91% 8 20% 100% 9 0% 100% 10 100% 100% Sequence DAT A-A MODE DAT A-B MODE I Serial Data Sequence Example (2W 1-2 Phase Excitation for CW) A malfunction may occur just after the power (VDD ) is turned on because the internal logic is unstable. Therefore, set the RESET state (REF terminal voltage: VDD −1V to VDD ) after the power is turned on.) I Operation Current Waveform Examples Torque-up waveform at start Stationary waveform Leading phase waveform at acceleration A A B B A A B B A A B B Start Time Time Time These three types of waveforms can all be set with a serial signal.