1-2-1 2-Phase Stepper Motor Unipolar Driver ICs SLA7027MU/SLA7024M/SLA7026M 2-Phase/1-2 Phase Excitation Absolute Maximum Ratings (Ta=25C) Ratings Parameter Symbol Unit SLA7027MU SLA7024M SLA7026M Motor Supply Voltage VCC 46 V FET Drain-Source Voltage VDSS 100 V Control Supply Voltage VS 46 V Input Voltage VIN 7V Reference Voltage VREF 2V Output Current IO 1 1.5 3 A PD1 4.5 (Without Heatsink) W Power Dissipation PD2 35 (TC=25C) W Channel Temperature Tch +150 C Storage Temperature Tstg 40 to +150 C Electrical Characteristics Ratings Parameter Symbol SLA7027MU SLA7024M SLA7026M Unit min. typ. max. min. typ. max. min. typ. max. IS 10 15 10 15 10 15 Control Supply Current mA Condition VS=44V VS=44V VS=44V Control Supply Voltage VS 10 24 44 10 24 44 10 24 44 V VDSS 100 100 100 FET Drain-Source Voltage V Condition VS=44V, IDSS=250AVS=44V, IDSS=250AVS=44V, IDSS=250A VDS 0.85 0.6 0.85 FET ON Voltage V Condition ID=1A, VS=14V ID=1A, VS=14V ID=3A, VS=14V IDSS 44 4 FET Drain Leakage Current mA Condition VDSS=100V, VS=44V VDSS=100V, VS=44V VDSS=100V, VS=44V VSD 1.2 1.1 2.3 FET Diode Forward Voltage V Condition ID=1A ID=1A ID=3A IIH 40 40 40 A Condition VIH=2.4V, VS=44V VIH=2.4V, VS=44V VIH=2.4V, VS=44V TTL Input Current IIL 0.8 0.8 0.8 mA Condition VIL=0.4V, VS=44V VIL=0.4V, VS=44V VIL=0.4V, VS=44V VIH222 TTL Input Voltage Condition ID=1A ID=1A ID=3A V (Active High) VIL 0.8 0.8 0.8 Condition VDSS=100V VDSS=100V VDSS=100V VIH222 TTL Input Voltage Condition VDSS=100V VDSS=100V VDSS=100V V (Active Low) VIL 0.8 0.8 0.8 Condition ID=1A ID=1A ID=3A Tr 0.5 0.5 0.5 Condition VS=24V, ID=0.8A VS=24V, ID=1A VS=24V, ID=1A Tstg 0.7 0.7 0.7 Switching Time s 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 ICs 92 AC characteristics DC characteristicsSLA7027MU/SLA7024M/SLA7026M Internal Block Diagram 81 6 5 7 12 17 16 18 11 1, 8, 11, 18pin Description of pins Reg Reg Excitation input signal Active H Active L Pin 1 OUTA OUTA + + + + Pin 8 OUTA OUTA Pin 11 OUTB OUTB Pin 18 OUTB OUTB 9 4 23 14 13 15 10 Typical Connection Diagram (Recommended component values) Active High Excitation signal time chart VCC (46V max) 2-phase excitation + clock 01230 1 r1: 510 INA HL L H H L r2: 100 (VR) r3: 47k INA LH H L L H Vb (5V) 712 8 1 18 11 r4: 47k INB HH L L H H VSA VSB OUTA OUTAOUTB OUTB r5: 2.4k r1 6 r3 r4 INA INA INB LL H H L L SLA7024M r6: 2.4k 5 2 INA INA Active TdA 7026M 17 High C1: 470pF TdB INB INB 13 7027MU C1 C2 16 1-2 phase excitation C2: 470pF INB INB RSA REFA REFB RSB GA GB r2 C3: 2200pF 9314 10 4 15 clock 0 1 2 3 4 5 6 7 0 1 2 3 C4: 2200pF C3 C4 INA HH L L LL L H H H L L r5 r6 Rs: 1 typ (7024M) Rs Rs (1 to 2W) INA LL L H H H LL LL L H 0.68 typ (7026M) 1.8 typ (7027MU) INB LH H H L L LL L H H H INB LL LL L H H H LL L L Excitation signal time chart Active Low 2-phase excitation VCC (46V max) clock 012301 r1: 510 + INA LH HL L H r2: 100 (VR) 3: 47k r INA HL L H HL r4: 47k Vb (5V) INB LL H H LL 712 8 1 18 11 r5: 2.4k VSA VSB OUTA OUTA OUTB OUTB INB HH L L H H r3 r4 r1 6 6: 2.4k INA INA r SLA7024M 5 INA INA 2 Active C1: 470pF TdA 7026M 17 Low TdB INB INB 1-2 phase excitation C2: 470pF 13 7027MU C1 C2 16 INB INB 3: 2200pF C clock 0 1 2 3 4 5 6 7 0 1 2 3 RSA REFA REFB RSB GA GB r2 9314 10 4 15 C4: 2200pF INA LL H H H H H L LL H H C3 C4 Rs: 1 typ (7024M) r5 r6 (1 to 2W) INA HH H L L L HH HH H L Rs Rs 0.68 typ (7026M) INB HL L L H H H H HL L L 1.8 typ (7027MU) INB H HHH H L L L HH HH External Dimensions (ZIP18 with Fin SLA18Pin ) (Unit : mm) 0.2 31 0.15 0.15 0.2 3.2 0.2 24.4 3.2 3.8 4.8 0.2 0.1 16.4 1.7 Part No. 0.2 2.45 Lot No. R-End +0.2 +0.2 0.6 0.650.1 1 2.2 0.1 +0.2 +0.2 +0.2 0.6 6 0.650.1 10.1 0.55 0.1 0.6 7.5 0.7 4 0.4 1 17P1.68 =28.56 0.4 1 17P1.68 =28.56 0.2 31.3 ....... ....... 12 3 18 123 18 Forming No. No.871 Forming No. No.872 Product Mass : Approx.6g ICs 93 RSA IN A 0.2 16 GA 0.2 13 IN A 0.2 9.9 TDA VSA REFA REFB VSB TDB IN B GB IN B RSB 0.5 (3) 6.7 +1 9.70.5 +0.2 0.55 0.1 0.6 3 0.6 1.6 0.6 4.6