1-2-1 2-Phase Stepper Motor Unipolar Driver ICs
SDK03M
2-Phase/1-2 Phase Excitation
sAbsolute
Maximum Ratings
Parameter
Motor supply voltage
FET Drain-Source voltage
Control supply voltage
TTL input voltage
Reference voltage
Output current
Power dissipation
Channel temperature
Storage temperature
Symbol
V
CC
V
DSS
V
S
V
IN
V
REF
I
O
P
D
T
ch
T
stg
Ratings
46
100
46
7
2
1
2.5 (Without Heatsink)
+150
–40 to +150
Unit
V
V
V
V
V
A
W
°C
°C
sElectrical
Characteristics
Parameter
Control supply current
Control supply voltage
FET Drain-Source voltage
FET ON voltage
FET drain leakage current
Symbol
I
S
Condition
V
S
V
DSS
Condition
V
DS
Condition
I
DSS
Condition
V
SD
Condition
I
IH
TTL input current
Condition
I
IL
Condition
V
IH
TTL input voltage
(Active High)
Condition
V
IL
Condition
TTL input voltage
(Active Low)
V
IH
Condition
V
IL
Condition
I
D
=1A
0.5
V
S
=24V, I
D
=0.8A
0.7
V
S
=24V, I
D
=0.8A
0.1
V
S
=24V, I
D
=0.8A
T
r
Condition
T
stg
Condition
T
f
Condition
2
V
DSS
=100V
0.8
V
V
DSS
=100V
V
IL
=0.4V, V
S
=44V
2
I
D
=1A
0.8
V
V
IH
=2.4V, V
S
=44V
–0.8
V
DSS
=100V, V
S
=44V
1.2
I
D
=1A
40
10
100
V
S
=44V, I
DSS
=250
µ
A
0.85
I
D
=1A, V
S
=14V
4
Ratings
min
typ
5
V
S
=44V
24
44
max
7.5
Units
mA
V
V
V
mA
V
DC characteristics
FET diode forward voltage
µ
A
mA
AC characteristics
Switching time
µ
s
sInternal
Block Diagram
6
IN
1
5
IN
2
7
V
S
8
9
1
16
Reg.
14 NC
1,8,9,16pin Description of pins
11 NC
Excitation input signal
Active H
Active L
+
+
Pin 1
Pin 16
Pin 8
Pin 9
OUT
1
OUT
2
OUT
2
OUT
1
R
S
10
R
S
15
R
S
13
GND
4
GND
12
T
D
2
REF
3
106
ICs
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