1-2-1 2-Phase Stepper Motor Unipolar Driver ICs SLA7031M/SLA7032M/SLA7033M 2-Phase/1-2 Phase Excitation ■Absolute Maximum Ratings Parameter (T a=25°C) Ratings Symbol VCC VS VDSS VIN VSYNC VREF VRS IO PD1 PD2 Tch Ta Tstg Motor Supply Voltage Control Supply Voltage FET Drain-Source Voltage Input Voltage Reference Voltage Sense Voltage Output Current Power Dissipation Channel Temperature Operating Ambient Temperature Storage Temperature Units SLA7031M SLA7032M SLA7033M 46 46 100 – 0.3 to +7 –0.3 to +7 –0.3 to +7 – 5 to +7 1.5 3 4.5(Without Heatsink) 35(Tc=25°C) +150 –20 to+85 – 40 to +150 1 V V V V V V A W W °C °C °C ■Recommended Operating Conditions Parameter Motor Supply Voltage Control Supply Voltage REF Input Voltage Case Temperature Ratings Symbol Unit min VM VS VREF VREF(dis) TC max 44 44 1.0 5.5 100 10 0.1 4.0 V V V V °C Remarks The control current precision is degraded at 0.1V or lower. Output MOS FET OFF Temperature of 4(15)-Pin Lead(without heatsink) ■Electrical Characteristics Ratings Parameter Symbol SLA7031M typ max IS 10 15 Condition VS=44V min Control Supply Current Control Supply Voltage FET Drain-Source Voltage FET ON Voltage FET Diode Forward Voltage FET Drain Leakage Current VS 10 VDSS 100 DC characteristics Input Voltage (Active High) IN Terminal Condition ID=1A, VS=10V Input Current REF Terminal Input Current Internal Resistance AC characteristics Sense Voltage Switching Time Chopping OFF Time 112 ICs 44 2.3 ISD=3A 250 VDSS=100V, VS=44V ID =3A 0.8 0.8 VDSS =100V VDSS=100V 0.8 0.8 0.8 ID=1A ±1 ±1 VS=44V, VI=0 or 5V VS=44V, VI=0 or 5V 4.0 Synchronous chopping mode Synchronous chopping mode 0.8 0.8 0.8 Asynchronous chopping mode 0.1 Asynchronous chopping mode 0.1 Asynchronous chopping mode 0.1 VS=44V, VSYNC =5V –0.1 VREF 4.0 5.5 V µA 0 2.0 4.0 0 mA 2.0 Reference Voltage input 5.5 Output FET OFF ±1 V VS=44V, VSYNC =0V Reference Voltage input Output FET OFF No synchronous trigger 40 –0.1 VS=44V, VSYNC =0V 2.0 I REF VS=44V, VSYNC =5V –0.1 Reference Voltage input V 4.0 Synchronous chopping mode 0 µA ID =3A ±1 VS=44V, VSYNC=0V V 2.0 VDSS =100V VS=44V, VSYNC=5V V VDSS=100V 2.0 VS=44V, VI=0 or 5V V 2.0 ID=1A ID=1A mA V 0.85 VDSS =100V, VS=44V VDSS=100V VREF Condition Condition 24 250 VDSS=100V ISYNC Condition RREF 15 ID=3A, VS=14V 0.8 Condition Condition 10 1.1 ID=1A Condition Input Current Units VS=44V, IDSS=250µA 2.0 4.0 max 0.6 VDSS =100V, VS=44V VSYNC Condition ISYNC SYNC Terminal 10 ISD=1A 2.0 SLA7033M typ 100 I D=1A, VS=14V 2.0 II Condition Condition 44 VS=44V, I DSS=250µA VIL VSYNC Input Voltage 24 250 Condition min VS=44V 1.2 Condition VIL 10 I SD=1A I DSS Condition (Active Low) Input Current 44 VSD Condition 15 0.85 Condition Input Voltage 10 100 VS=44V, IDSS =250µA Condition VIH max VS=44V 24 Condition VDS VIH min SLA7032M typ 4.0 5.5 V Output FET OFF ±1 No synchronous trigger 40 Resistance between GND and REF terminal at synchronous trigger Resistance between GND and REF terminal at synchronous trigger ±1 No synchronous trigger 40 Resistance between GND and REF terminal at synchronous trigger VRS VREF VREF VREF Tr 0.5 0.5 0.5 Tstg Tf 0.7 0.1 0.7 0.1 0.7 0.1 Condition VS=24V, ID=0.8A VS=24V, ID=1A VS=24V, ID=1A TOFF 12 12 12 Condition VS=24V VS=24V VS=24V µA Ω V µs µs SLA7031M/SLA7032M/SLA7033M 12 Reg. Chopping OFF timer (12 µ s typ) 18 + + – – Oscillator MOSFET gate drive circuit Chopping OFF timer (12 µ s typ) 1pin 8pin 11pin 18pin 14 13 Excitation input signal Active H Active L OUT A OUT A OUT A OUT A OUT B OUT B OUT B OUT B Rs B GB 15 SYNC B 3 REF B GA 4 REF A Synchronous chopping circuit SYNC A Rs A 2 11 1,8,11,18pin Description of pins Chopping noise blanking timer (5 µs typ) Synchronous chopping circuit 9 16 Reg. Chopping noise blanking timer (5 µs typ) Oscillator MOSFET gate drive circuit 17 IN B 7 Vs B 5 Vs A 6 IN A 8 IN A 1 IN B ■Internal Block Diagram 10 ■Typical Connection Diagram (Recommended component values) Active High Vcc (46Vmax) Excitation signal time chart 2-phase excitation + 7 12 VsA 2 Vb (5V) 1 8 VsB 11 18 OUTA OUTA OUTB OUTB SYNC A 13 SLA7031M SLA7032M SLA7033M SYNC B RsA r1 REFA REFB RsB 3 9 14 GA 10 INA INA 5 INA INB 17 INB INB 16 INB Active High GB 4 Rs INA 6 1-2 phase excitation clock 0 1 2 3 0 1 clock IN A H L L H H L IN A L H H L L IN B H H L L H IN B L L H H L 1 2 3 4 5 6 7 0 1 2 3 INA H H L L L L L H H H L L H INA L L L H H H L L L L L H H INB L H H H L L L L L H H H L INB L L L L L H H H L L L 15 0 L r1 : 4kW r2 : 1kW (VR) R s : 1W typ (7031M/7032M) (1 to 2W) 0.68W typ (7033M) Rs r2 Active Low Excitation signal time chart 2-phase excitation Vcc (46Vmax) + 7 VsA 2 Vb (5V) 13 12 1 8 VsB 11 18 OUTA OUTA OUTB OUTB SYNC A SLA7031M SLA7032M SLA7033M SYNC B RsA r1 9 Rs REFA REFB RsB 3 14 GA 10 4 INA 6 INA INA 5 INA INB 17 INB INB 16 INB GB 15 Rs r2 Active Low 1-2 phase excitation clock 0 1 2 3 0 1 clock 0 1 2 3 4 5 6 7 0 1 2 3 IN A L H H L L H IN A L L H H H H H L L L H H IN A H L L H H L IN A H H H L L L H H H H H L IN B L L H H L L IN B H L L L H H H H H L L L IN B H H L L H H IN B H H H H H L L H H H H ■External Dimensions (ZIP18 with Fin [SLA18Pin]) +0.2 1 –0.1 4±0.7 17×P1.68±0.4=28.56±1 +0.2 +0.2 0.65 –0.1 1 –0.1 2.2±0.6 6±0.6 7.5±0.6 +0.2 0.55 –0.1 4.6 ±0.6 +0.2 +1 (3) R-End +0.2 0.65 –0.1 3 ±0.6 2.45±0.2 0.55 –0.1 1.6 ±0.6 Part No. Lot No. 4.8 ±0.2 1.7±0.1 6.7±0.5 9.9 ±0.2 16 ±0.2 13 ±0.2 φ 3.2±0.15×3.8 (Unit : mm) 9.7 –0.5 31±0.2 24.4±0.2 16.4±0.2 φ 3.2±0.15 L r1 : 4kW r2 : 1kW (VR) R s : 1W typ (7031M/7032M) (1 to 2W) 0.68W typ (7033M) 17×P1.68±0.4=28.56±1 31.3±0.2 1 2 3 . . . . . . . 18 Forming No. No.871 123 . . . . . . . 18 Forming No. No.872 Product Mass : Approx.6g ICs 113