Sanken Electric Co SDK03M Datasheet
2-Phase/1-2 Phase Excitation
SDK03M
2-Phase Stepper Motor Unipolar Driver ICs
■Absolute Maximum Ratings
Parameter Symbol Ratings Units
Motor supply voltage VCC 46 V
FET Drain-Source voltage VDSS 100 V
Control supply voltage VS 46 V
TTL input voltage VIN 7V
Reference voltage VREF 2V
Output current IO 1A
Power dissipation PD 2.5 (Without Heatsink) W
Channel temperature Tch +150 °C
Storage temperature Tstg −40 to +150 °C
■Electrical Characteristics
Parameter Symbol
I
Control supply current
Control supply voltage VS 10 24 44 V
FET Drain-Source VDSS 100
voltage
FET ON voltage
FET drain leakage current
FET diode forward VSD 1.2
voltage
TTL input current
DC characteristics
TTL input voltage
(Active High) VIL 0.8
TTL input voltage
(Active Low) VIL 0.8
Switching time
AC characteristics
S 5 7.5
Condition
Condition
VDS 0.85
Condition
IDSS 4
Condition
Condition
IIH 40
Condition
IIL −0.8
Condition
VIH 2
Condition
Condition
VIH 2
Condition
Condition
Tr 0.5
Condition
Tstg 0.7
Condition
Tf 0.1
Condition
min typ max
Ratings
VS=44V
VS=44V, IDSS=250µA
ID=1A, VS=14V
VDSS=100V, VS=44V
ID=1A
VIH=2.4V, VS=44V
VIL=0.4V, VS=44V
ID=1A
VDSS=100V
VDSS=100V
ID=1A
VS=24V, ID=0.8A
VS=24V, ID=0.8A
VS=24V, ID=0.8A
Units
mA
V
V
mA
V
µ
mA
V
V
µ
A
s
36
SDK03M
■Internal Block Diagram
SDK03M2-Phase Stepper Motor Unipolar Driver ICs (2-Phase/1-2 Phase Excitation)
8
14
NC
1
169
6
1 IN2 VS
IN
57
Reg.
1, 8, 9, 16pin Description of pins
Pin 1
Pin 16
Pin 8
11
NC
+
–
S RS RS GND GND REFTD
R
10
15 13 4
+
–
2312
Pin 9
■Diagram of Standard External Circuit (Recommended Circuit Constants)
Active High
Excitation signal time chart
2-phase excitation
IN1 HL L HH L
IN2 LH HL L H
IN1 HH L L H H
2 LL HHL L
IN
Active
High
1-2-phase excitation
IN1 HHLLLLLHHHLL
IN2 LLLHHHLLLLLH
IN1 LHHHLLLLLHHH
2 LLLLLHHHLLLL
IN
Active
High
IN1
IN2
Motor coil
Phase A
11689 7
OUT1 OUT2 VS
6
IN1
5
IN2
GND RS REF
121015 13 3
4
SDK03M
Phase A
C3
RS
VCC (46V max)
+
r3 r1 r4
2
TD
r5
C1 C2
b (5V)
V
2
TD
r2 r6
Motor coil
Phase B
711689
VS OUT2OUT1
SDK03M
Phase B
REF RS GND
313 15
C4
RS
10 4
IN1
IN2
12
Phase clock 0 1 2 3 0 1
Phase A
Phase B
6
IN1
5
IN2
Phase clock 012345670123
Phase A
Phase B
Excitation input
Active H Active L
1
OUT
OUT
2
(1 to 2W)
OUT
OUT
r1: 510Ω
2: 100Ω (VR)
r
3: 47k Ω
r
4: 47k Ω
r
5: 2.4k Ω
r
6: 2.4k Ω
r
1: 470pF
C
2: 470pF
C
3: 2200pF
C
4: 2200pF
C
S : 1.8Ω typ
R
2
1
Active Low
Active
Low
IN1
IN2
Motor coil
Phase A
11689 7
OUT2 OUT1 VS
6
IN1
5
IN2
GND RS REF
121015 13 3
4
SDK03M
Phase A
C3
RS
VCC (46V max)
+
r3 r1 r4
2
TD
r5
C1 C2
Vb (5V)
2
TD
r2 r6
Motor coil
Phase B
711689
VS OUT1OUT2
SDK03M
Phase B
REF RS GND
313 15
C4
RS
10 4
IN1
IN2
12
Excitation signal time chart
2-phase excitation
Phase clock 0 1 2 3 0 1
Phase A
Phase B
6
IN1
5
IN2
IN1 LH HL L H
IN2 HL L HH L
IN1 LL HHL L
2 HH L L H H
IN
Active
Low
1-2-phase excitation
r1: 510Ω
2: 100Ω (VR)
r
3: 47k Ω
r
4: 47k Ω
r
5: 2.4k Ω
r
6: 2.4k Ω
r
1: 470pF
C
2: 470pF
C
3: 2200pF
C
4: 2200pF
C
S : 1.8Ω typ
R
(1 to 2W)
Phase clock 012345670123
Phase A
Phase B
IN1 L LHHHHHLLLHH
IN2 HHHL L LHHHHHL
IN1 HL L LHHHHHL L L
2 HHHHHLL LHHHH
IN
SDK03M
37
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