1-2-1 2-Phase Stepper Motor Unipolar Driver ICs SLA7027MU/SLA7024M/SLA7026M 2-Phase/1-2 Phase Excitation ■Absolute Maximum Ratings Parameter (Ta=25°C) Ratings Symbol SLA7027MU SLA7024M Unit SLA7026M Motor Supply Voltage VCC 46 FET Drain-Source Voltage VDSS 100 V VS 46 V Input Voltage VIN 7 V Reference Voltage VREF 2 Control Supply Voltage Output Current IO Power Dissipation 1 V V 1.5 3 A PD1 4.5 (Without Heatsink) W PD2 35 (TC=25°C) W Channel Temperature Tch +150 °C Storage Temperature Tstg –40 to +150 °C ■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 94 ICs 44 10 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 µA 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=250µA 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 0.6 VIH=2.4V, VS=44V IIL max. VS=44V ID=1A, VS=14V ID=1A Unit typ. 100 1.2 Condition min. VS=44V, IDSS=250µA VDSS=100V, VS=44V Condition VIH 15 4 VSD Condition 10 0.85 Condition TTL Input Voltage max. VS=44V ID=1A, VS=14V Condition SLA7026M typ. 100 VDS Condition VIH min. VS=44V, IDSS=250µA 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 µs 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 : 510Ω 100Ω (VR) : 47kΩ : 47kΩ : 2.4kΩ : 2.4kΩ : 470pF : 470pF : 2200pF : 2200pF : 1Ω typ (7024M) (1 to 2W) 0.68Ω typ (7026M) 1.8Ω 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]) : : : : : 2.2±0.6 6±0.6 7.5±0.6 +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 4±0.7 17×P1.68±0.4=28.56±1 : +1 (3) +0.2 1 –0.1 3 ±0.6 2.45±0.2 R-End +0.2 0.65 –0.1 : 4.6 ±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 : 510Ω 100Ω (VR) 47kΩ 47kΩ 2.4kΩ 2.4kΩ 470pF 470pF 2200pF 2200pF 1Ω typ (7024M) 0.68Ω typ (7026M) 1.8Ω typ (7027MU) (Unit : mm) 9.7 –0.5 31±0.2 24.4±0.2 16.4±0.2 φ 3.2±0.15 (1 to 2W) : 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 95