1-2-1 2-Phase Stepper Motor Unipolar Driver ICs SLA7027MU/SLA7024M/SLA7026M 2-Phase/1-2 Phase Excitation Absolute Maximum Ratings Parameter (Ta=25C) Ratings Symbol SLA7027MU SLA7024M Unit SLA7026M Motor Supply Voltage VCC 46 V FET Drain-Source Voltage VDSS 100 V Control Supply Voltage VS 46 V Input Voltage VIN 7 V Reference Voltage VREF Output Current 2 IO 1 V 1.5 3 A PD1 4.5 (Without Heatsink) PD2 35 (TC=25C) W Channel Temperature Tch +150 C Storage Temperature Tstg -40 to +150 C Power Dissipation W Electrical Characteristics Ratings Parameter Symbol SLA7027MU min. Control Supply Current Control Supply Voltage FET Drain-Source Voltage FET ON Voltage DC characteristics FET Drain Leakage Current FET Diode Forward Voltage typ. max. IS 10 15 Condition VS=44V VS 10 VDSS 100 Condition TTL Input Voltage (Active High) IDSS (Active Low) Switching Time 92 ICs 10 15 24 4 VDSS=100V, VS=44V 2.3 ID=3A 40 VIH=2.4V, VS=44V -0.8 -0.8 VIL=0.4V, VS=44V VIL=0.4V, VS=44V 2 ID=1A ID=3A 0.8 0.8 VDSS=100V V mA V A mA V VDSS=100V 2 VDSS=100V V 2 0.8 VDSS=100V mA V 0.85 40 ID=1A 44 ID=3A, VS=14V VIH=2.4V, VS=44V 2 24 VS=44V, IDSS=250A ID=1A VIL=0.4V, VS=44V VIL 10 1.1 -0.8 VIL 15 4 40 Condition 44 VDSS=100V, VS=44V 2 10 VS=44V ID=1A, VS=14V VIH=2.4V, VS=44V IIL max. 0.6 ID=1A Unit typ. 100 1.2 Condition min. VS=44V, IDSS=250A VDSS=100V, VS=44V Condition VIH 10 4 VSD Condition 44 ID=1A, VS=14V Condition TTL Input Voltage max. 0.85 Condition SLA7026M typ. VS=44V VS=44V, IDSS=250A Condition VIH min. 100 VDS Condition AC characteristics 24 IIH TTL Input Current SLA7024M 2 VDSS=100V 0.8 VDSS=100V 0.8 0.8 Condition ID=1A ID=1A Tr 0.5 0.5 0.5 Condition VS=24V, ID=0.8A VS=24V, ID=1A VS=24V, ID=1A V ID=3A Tstg 0.7 0.7 0.7 Condition VS=24V, ID=0.8A VS=24V, ID=1A VS=24V, ID=1A Tf 0.1 0.1 0.1 Condition VS=24V, ID=0.8A VS=24V, ID=1A VS=24V, ID=1A s SLA7027MU/SLA7024M/SLA7026M 12 Reg Reg 17 16 IN B 7 VSB 5 VSA 6 IN A 1 IN A 8 IN B Internal Block Diagram 18 11 1, 8, 11, 18pin Description of pins Excitation input signal 2 3 14 13 Active L Pin 1 OUTA OUTA Pin 8 OUTA OUTA Pin 11 OUTB OUTB Pin 18 OUTB OUTB RSB GB TDB REFB 4 + - + - REFA 9 + - TDA GA RSA + - Active H 15 10 Typical Connection Diagram (Recommended component values) Active High Excitation signal time chart 2-phase excitation VCC (46V max) + Vb (5V) r3 7 12 8 VSA VSB OUTA 2 13 C2 RSA REFA REFB RSB 9 3 14 10 r2 1 2 3 0 1 H L L H H L 5 INA 17 INB 16 INB GB 15 GA 4 INA INA INB r5 r6 INA L H H L L H INB H H L L H H INB L L H H L L Active High 1-2 phase excitation INB clock 0 1 2 3 4 5 6 7 0 1 2 IN A H H L L L L L H H H L L IN A L L L H H H L L L L L H IN B L H H H L L L L L H H H IN B L L L L L H H H L L L L C4 C3 Rs 6 INA SLA7024M 7026M 7027MU TdA TdB 0 INA 11 OUTB r1 r4 C1 1 18 OUTA OUTB clock Rs 3 r1 r2 r3 r4 r5 r6 C1 C2 C3 C4 Rs : 510 100 (VR) : 47k : 47k : 2.4k : 2.4k : 470pF : 470pF : 2200pF : 2200pF : 1 typ (7024M) (1 to 2W) 0.68 typ (7026M) 1.8 typ (7027MU) r1 r2 r3 r4 r5 r6 C1 C2 C3 C4 Rs : : Excitation signal time chart 2-phase excitation Active Low VCC (46V max) clock 0 1 2 3 0 1 INA L H H L L H INA H L L H H L INB L L H H L L INB H H L L H H + Vb (5V) r3 C1 7 12 8 1 18 VSA VSB OUTA OUTA OUTB 11 OUTB r1 r4 C2 r2 2 TdA TdB 13 RSA REFA REFB RSB 9 3 14 10 C3 Rs 6 INA SLA7024M 7026M 7027MU 5 INA 17 INB GA 4 INB GB 15 16 INA INA INB Active Low 1-2 phase excitation INB clock 0 1 2 3 4 5 6 7 0 1 2 3 INA L L H H H H H L L L H H C4 r5 r6 Rs INA H H INB H L INB H H H L L L H H H H H L L L H H H H H L L L H H H L L L H H H H External Dimensions (ZIP18 with Fin [SLA18Pin]) : : : : : 2.20.6 60.6 7.50.6 +0.2 +0.2 1 -0.1 0.55 -0.1 1.6 0.6 +0.2 0.65 -0.1 +0.2 0.55 -0.1 40.7 17xP1.680.4=28.561 : +1 (3) +0.2 1 -0.1 3 0.6 2.450.2 R-End +0.2 0.65 -0.1 : 4.6 0.6 Part No. Lot No. : 4.8 0.2 1.70.1 6.70.5 9.9 0.2 16 0.2 13 0.2 3.20.15x3.8 : 510 100 (VR) 47k 47k 2.4k 2.4k 470pF 470pF 2200pF 2200pF 1 typ (7024M) 0.68 typ (7026M) 1.8 typ (7027MU) (Unit : mm) 9.7 -0.5 310.2 24.40.2 16.40.2 3.20.15 (1 to 2W) : 17xP1.680.4=28.561 31.30.2 1 2 3 . . . . . . . 18 Forming No. No.871 123 . . . . . . . 18 Forming No. No.872 Product Mass : Approx.6g ICs 93