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| 1-2-1 2-Phase Stepper Motor Unipolar Driver ICs SLA7042M/SLA7044M 2W1-2 Phase Excitation/Micro-step Support Absolute Maximum Ratings Parameter Motor Supply Voltage FET Drain-Source Voltage Control Supply Voltage Input Voltage Output Current Power Dissipation Channel Temperature Storage Temperature Symbol VCC VDSS VDD VIN IO PD Tch Tstg 1.2 4.5 (Without Heatsink) +150 -40 to +150 Ratings SLA7042M 46 100 7 -0.5 to VDD+0.5 3.0 SLA7044M Unit V V V V A W C C Electrical Characteristics Ratings Parameter Symbol min. Control Supply Current Control Supply Voltage Input Voltage IDD Conditions VDD VIH Conditions VIL Conditions VH Conditions II Conditions VREF Conditions VDISABLE Conditions IREF Conditions Vref Conditions Vref Conditions Vref Conditions Vref Conditions Vref Conditions Vref Conditions Vref Conditions Vref Conditions VDS Conditions VDSS Conditions IDSS Conditions VSD Conditions TOFF Conditions TOFF Conditions TOFF Conditions Tr Conditions Tstg Conditions Tf Conditions tsDAT SLA7042M typ. VDD=5.5V 5 VDD=5V max. 7 5.5 5 1.5 min. SLA7044M typ. VDD=5.5V 5 VDD=5V Unit max. 7 5.5 5 1.5 mA V V 4.5 3.5 0 4.5 3.5 0 Terminals DATA, CLOCK and STROBE Input Hysteresis Voltage VDD=5V 1 VDD=5V 1 VDD=5V, VI=0 or 5V 0.4 VDD=5V VDD-1 VDD=5V 1 VDD=5V, VI=0 or 5V 0 MODE 0 20 MODE 1 40 MODE 2 55.5 MODE 3 71.4 MODE 4 83 MODE 5 91 MODE 6 100 MODE 7 0.8 ID=1.2A, VDD=4.75V 100 IDSS=4mA, VDD=5V 4 VDSS=100V, VDD=5V 1.2 ID=1.2A 7 MODE 1, 2 9 MODE 3, 4, 5 11 MODE 6, 7 0.5 VDD=5V, ID=1A 0.7 VDD=5V, ID=1A 0.1 VDD=5V, ID=1A 75 Data active time before clock 75 Data active time before clock 150 100 100 Time from clock to Strobe 100 100 150 100 100 75 75 100 VDD VDD-1 2.5 0.4 VDD=5V 1 VDD=5V 1 VDD=5V, VI=0 or 5V 2.5 VDD=5V VDD VDD=5V 1 VDD=5V, VI=0 or 5V 0 MODE 0 20 MODE 1 40 MODE 2 55.5 MODE 3 71.4 MODE 4 83 MODE 5 91 MODE 6 100 MODE 7 1.4 ID=3.0A, VDD=4.75V IDSS=4mA, VDD=5V 4 VDSS=100V, VDD=5V 2.3 ID=3A 7 MODE 1, 2 9 MODE 3, 4, 5 11 MODE 6, 7 0.5 VDD=5V, ID=1A 0.7 VDD=5V, ID=1A 0.1 VDD=5V, ID=1A Data active time before clock Data active time before clock V Input Current A REF Terminal Input Voltage V Input Current DC Characteristics A Step Reference Current Ratio % FET ON Voltage FET Drain-Source Voltage FET Drain Leakage Current FET Diode Forward Voltage V V mA V Chopper Off Time s AC Characteristics Switching Time s Data Setup Time "A" Data Hold Time "B" Data Pulse Time "C" Clock Pulse Width "D" Strobe Stability Time "E" Strobe Pulse H Width "F" Conditions thDAT Conditions twDA T Conditions twhCLK ns Conditions tpsSTB Conditions twhSTB Time from clock to Strobe Conditions 114 ICs SLA7042M/SLA7044M Internal Block Diagram OUT A OUT A OUT B OUT B VDD A VDD B Serial Data Pattern OUT excitation (MODE ) OUT excitation (MODE ) Phase CLOCK a b c 0 Phase a b c 0 STROBE Reference voltage c b Vref a 0 0 0% 0 0 0 20% 1 0 1 40% 0 0 1 1 55.5% 1 0 0 71.4% 1 0 1 83% 1 1 0 91% 1 1 1 100% Reference voltage Vref b a c 0% 0 0 0 20% 0 1 0 40% 1 0 0 55.5% 1 1 0 71.4% 0 0 1 0 83% 1 1 1 91% 0 1 1 100% 1 1 0 0 MODE0 (0%) 0 OFF time timer (TOFF 3-step switching) Chopper ON Noise filter (5s) 0 OFF time timer (TOFF 3-step switching) Chopper ON Noise filter (5s) MODE1 (20%) 0 PWM 0 PWM Phase COMP Reset Ph. Phase Latch a b c c Latch b a Ph. Reset COMP MODE2 (40%) 0 MODE3 (55.5%) DATA 0 Reset Shift register Ph. a b c c Shift register b a Ph. Reset 0 0 Enable Enable MODE4 (71.4%) 0 0 MODE5 (83%) CLOCK A STROBE A STROBE B CLOCK B Ref A GND A Ref B GND B Rs A DATA A DATA B Rs B 0 0 MODE6 (91%) 0 0 MODE7 (100%) 0 0 Successively output this serial data and set any current. Then, determine the step time of the reference voltage Vref with STROBE signal intervals. Diagram of Standard External Circuit VCC Output Current Formula IO= K VREF K:Reference voltage setting ratio by 3 RS serial signal (See the internal block diagram) 5V 4 VDDA ENABLE VREF 3 14 R2 C1 GND A GND B 7 12 C1 : 500~10000pF RS A 9 RS REF A REF B 15 1 8 11 18 VDDB OUT A OUT A OUT B OUT B CLOCK A 5 CLOCK B R1 SLA7042M SLA7044M 16 2 13 STROBE A STROBE B DATA A 6 DATA B 17 RS B 10 RS External Dimensions (ZIP18 with Fin [SLA18Pin]) 3.20.15 310.2 24.40.2 16.40.2 (Unit : mm) 3.20.15x3.8 4.80.2 1.70.1 9.90.2 160.2 130.2 (3) 6.70.5 0.55 +0.2 -0.1 1 -0.1 17xP1.680.4=28.561 +0.2 +0.2 0.65 -0.1 +0.2 1 -0.1 +0.2 0.55 -0.1 2.20.1 60.6 7.50.6 17xP1.680.4=28.561 31.30.2 40.7 123 . . . . . . . . . . . . 16 17 18 123 . . . . . . . . . . . 16 1718 Forming No. No.871 Forming No. No.872 Product Mass : Approx.6g 1.6 0.6 R-End 9.7 -0.1 +0.2 0.65 -0.1 +0.2 3 0.6 0.6 4.6 Part No. Lot No. 2.450.2 ICs 115 |
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