Document
2-Phase/1-2 Phase Excitation
SLA7032M/SLA7033M
2-Phase Stepper Motor Unipolar Driver ICs
sAbsolute Maximum Ratings
Parameter Motor supply voltage Control supply voltage FET Drain-Source voltage TTL input voltage SYNC terminal voltage Reference voltage Sense voltage Output current Power dissipation Channel temperature Storage temperature Symbol VCC VS V DSS VIN V SYNC V REF VRS IO P D1 P D2 Tch Tstg Ratings SLA7032M 46 46 100 −0.3 to +7 −0.3 to +7 −0.3 to +7 −5 to +7 1.5 4.5 (Without Heatsink) 35 (Tc = 25°C) +150 −40 to +150 3 SLA7033M (Ta=25°C) Units V V V V V V A W W °C °C
sElectrical Characteristics
Ratings Parameter Symbol min Control supply current Control supply voltage FET Drain-Source voltage FET ON voltage FET diode forward voltage FET drain leakage current IS Condition VS VDSS Condition VDS Condition VSD Condition IDSS SLA7032M typ 10 VS=44V 24 V S=44V, IDSS=250µA 0.6 ID=1A, VS =14V 1.1 ISD =1A ISD=3A 250 V DSS=100V, VS =44V 2.0 ID=3A 0.8 VDSS=100V 2.0 VDSS=100V 0.8 ID=3A ±1 VS=44V, VI =0 or 5V 4.0 Synchronous chopping mode 0.8 Asynchronous chopping mode 0.1 V S=44V, VYS=5V −0.1 V S=44V, VYS=0V 0 Reference voltage input 4.0 Output FET OFF ±1 No synchronous trigger 40 Resistance between GND and REF terminal at synchronous trigger 0.5 V S=24V, ID=1A 0.7 V S=24V, ID=1A 0.1 V S=24V, ID=1A 12 V S=24V 5.5 2.0 V mA V V V ID=3A, VS =14V 2.3 max 15 44 min SLA7033M typ 10 V S=44V 24 VS =44V, IDSS=250 µA 0.85 Units max 15 44
mA V V V V
10 100
10 100
OUT
DC characteristics
IN terminal OUT
Input current
Input voltage SYNC terminal Input current¨
Input current REF terminal Input current
Internal resistance
Switching time
Chopping OFF time
250 Condition VDSS=100V, VS=44V VIH 2.0 Condition ID=1A VIL 0.8 Condition VDSS=100V VIH 2.0 Condition VDSS=100V VIL 0.8 Condition ID=1A II ±1 Condition VS =44V, V I=0 or 5V VSYNC 4.0 Condition Synchronous chopping mode VSYNC 0.8 Condition Asynchronous chopping mode ISYNC 0.1 Condition VS=44V, VYS=5V ISYNC −0.1 Condition VS=44V, VYS=0V VREF 0 2.0 Condition Reference voltage input VREF 4.0 5.5 Condition Output FET OFF IREF ±1 Condition No synchronous trigger RREF 40 Condition Resistance between GND and REF terminal at synchronous trigger Tr 0.5 Condition VS =24V, ID=1A Tstg 0.7 Condition VS =24V, ID=1A Tf 0.1 Condition VS =24V, ID=1A TOFF 12 Condition VS=24V
µA
µA
µA
Ω
AC characteristics
µs
µs
28
SLA7032M/SLA7033M
2-Phase Stepper Motor Unipolar Driver IC (2-Phase/1-2 Phase Excitation)
SLA7032M/SLA7033M
sInternal Block Diagram
1 8 6 5 7 12 17 16 11 18
Vs A
Vs B
IN B
IN A
IN A
IN B
1, 8, 11, 18pin Description of pins
Reg. Oscillator MOSFET gate drive circuit
Synchronous chopping circuit
Reg. Chopping blanking timer (5 µ s typ) Oscillator MOSFET gate drive circuit
Synchronous chopping circuit
Chopping blanking timer (5 µ s typ)
Chopping OFF timer (12 µ s typ)
+ −
+ −
Chopping OFF timer (12 µ s typ)
1pin 8pin 11pin 18pin
Excitation input Active H Active L OUT A OUT A OUT A OUT A OUT B OUT B OUT B OUT B
SYNC A
SYNC B
REF A
REF B
Rs A
9
2
4
3
14
15
13
10
sDiagram of Standard External Circuit (Recommended Circuit Constants)
Active High
Vcc (46Vmax)
Excitation signal time chart 2-phase excitation
clock IN A IN A IN B IN B
INA INA INB INB Active High
Rs B
GA
GB
+
7 VsA 2 Vb (5V)
12 VsB
8
1
18
11
OUTA OUTA OUTB OUTB INA 6
0 H L H L
1 L H H L
2 L H L H
3 H L L H
0 H L H L
1 L H H L
r1 : 4k Ω r2 : 1k Ω(VR) R s : 1 Ω typ(7032M) (1 to 2W) 0.68 Ω typ(7033M)
SYNC A SLA7032M SLA7033M SYNC B
INA 5 INB 17 INB 16
13
1-2 phase excitation
r1 RsA 9 Rs r2 REFA REFB RsB 3 14 10 Rs GA 4 GB 15
clock IN A IN A IN B IN B
0 H L L L
1 H L H L
2 L L H L
3 L H H L
4 L H L L
5 L H L H
6 L L L H
7 H L L H
0 H L L L
1 H L H L
2 L L H L
3 L H H L
Active Low
Vcc (46Vmax)
Excitation signal time chart 2-phase excitation
clock IN A IN A IN B IN B
INA INA INB INB Active Low
+
7 VsA 2 Vb (5V)
12 VsB
8
1
18
11
OUTA OUTA OUTB OUTB INA 6
0 L H L H
1 H L L H
2 H L H L
3 L H H L
0 L H L H
1 H L L H
r1 : 4k Ω r2 : 1k Ω(VR) R s : 1 Ω typ(7032M) (1 to 2W) 0.68 Ω typ(7033M)
SYNC A SLA7032M SLA7033M SYNC B
INA 5 INB 17 INB 16
13
1-2 phase excitation
clock IN A IN A IN B IN B 0 L H H H 1 L H L H 2 H H L H 3 H L L H 4 H L H H 5 H L H L 6 H H H L 7 L H H L 0 L H H H 1 L H L H 2 H H L H 3 H L L H
r1
RsA 9 Rs
REFA REFB RsB 3 14 10 Rs
GA 4
GB 15
r2
SLA7032M/SLA7033M
29
2-Phase Stepper Motor Unipolar Driver IC (2-Phase/1-2 Phase Excitation)
SLA7032M/SLA7033M
sExternal Dimensions
φ 3.2±0.15
31±0.2 24.4±0.2 16.4±0.2
(Unit: mm)
φ 3.2±0.15×3.8
4.8±0.2 1.7±0.1
9.9 ±0.2
6.7±0.5
R-End 0.65 –0.1
+0.2
9.7 –0.5
+1
1 –0.1 17×P1.68±0.4=28.56±1
+0.2
(3)
0.65 –0.1
1 –0.1
0.55 –0.1 4±0.7
+0.2
17×P1.68±0.4=28.56±1
31.3±0.2
1 2 3 · · · · · · · 18
123 · · · · · · · 18
Forming No. No.871
Forming No. No.872
30
SLA7032M/SLA7033M
0.55 –0.1 1.6 ±0.6
+0.2
+0.2
+0.2
2.2±0.6 6±0.6 7.5±0.6
3 ±0.6
Part No. Lot No.
.