2-Phase Stepper Motor Unipolar Driver ICs
Description
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 V...
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