2W1-2 Phase Excitation/Micro-step Support
SLA7042M/SLA7044M
2-Phase Stepper Motor Unipolar Driver ICs
sAbsolute
Maximum Ratings
Parameter
Motor supply voltage
FET Drain-Source voltage
Control supply voltage
Input voltage
Output current
Power dissipation
Channel temperature
Storage temperature
Symbol
V
CC
V
DSS
V
DD
V
IN
I
O
P
D
T
ch
T
stg
Ratings
SLA7042M
46
100
7
−0.5
to V
DD
+0.5
1.2
4.5 (Without Heatsink)
+150
−40
to +150
3
SLA7044M
Units
V
V
V
V
A
W
°C
°C
sElectrical
Characteristics
Ratings
Parameter
Control supply current
Control supply voltage
Input
Terminals
voltage
DATA,
CLOCK
Input hysteresis
and
voltage
STROBE
Input
current
Input
voltage
Input
current
Symbol
min
I
DD
Conditions
V
DD
V
IH
Conditions
V
IL
Conditions
V
H
Conditions
I
I
Conditions
V
REF
Conditions
V
DISABLE
Conditions
I
REF
Conditions
V
ref
Conditions
V
ref
Conditions
V
ref
Conditions
V
ref
Conditions
V
ref
Conditions
V
ref
Conditions
V
ref
Conditions
V
ref
Conditions
V
DS
Conditions
V
DSS
Conditions
I
DSS
Conditions
V
SD
Conditions
T
OFF
Conditions
T
OFF
Conditions
T
OFF
Conditions
T
r
Conditions
T
stg
Conditions
T
f
Conditions
ts
DAT
Conditions
th
DAT
Conditions
tw
DAT
Conditions
twh
CLK
Conditions
tps
STB
Conditions
twh
STB
Conditions
SLA7042M
typ
V
DD
=5.5V
5
V
DD
=5V
0
V
DD
=5V
1
V
DD
=5V
V
DD
=5V, V
I
=0 or 5V
0.4
V
DD
=5V
V
DD
−1
V
DD
=5V
±1
V
DD
=5V, V
I
=0 or 5V
0
MODE 0
20
MODE 1
40
MODE 2
55.5
MODE 3
71.4
MODE 4
83
MODE 5
91
MODE 6
100
MODE 7
0.8
I
D
=1.2A, V
DD
=4.75V
100
I
DSS
=4mA, V
DD
=5V
4
V
DSS
=100V, V
DD
=5V
1.2
I
D
=1.2A
7
MODE 1, 2
9
MODE 3, 4, 5
11
MODE 6, 7
0.5
V
DD
=5V, I
D
=1A
0.7
V
DD
=5V, I
D
=1A
0.1
V
DD
=5V, I
D
=1A
75
Inter-clock
75
Inter-clock
150
100
100
Strobe=L from clock
100
100
150
ns
100
100
Strobe=L from clock
75
Inter-clock
75
Inter-clock
I
D
=3A
7
MODE 1, 2
9
MODE 3, 4, 5
11
MODE 6, 7
0.5
V
DD
=5V, I
D
=1A
0.7
V
DD
=5V, I
D
=1A
0.1
V
DD
=5V, I
D
=1A
V
DSS
=100V, V
DD
=5V
2.3
100
I
DSS
=4mA, V
DD
=5V
4
I
D
=3A, V
DD
=4.75V
V
DD
=5V, V
I
=0 or 5V
0
MODE 0
20
MODE 1
40
MODE 2
55.5
MODE 3
71.4
MODE 4
83
MODE 5
91
MODE 6
100
MODE 7
1.4
V
DD
V
DD
−1
V
DD
=5V
±1
2.5
0.4
V
DD
=5V
V
DD
1.5
0
V
DD
=5V
1
V
DD
=5V
V
DD
=5V, V
I
=0 or 5V
2.5
V
max
7
5.5
5
min
SLA7044M
typ
V
DD
=5.5V
5
V
DD
=5V
1.5
Units
max
7
5.5
5
mA
V
V
4.5
3.5
4.5
3.5
V
±1
±1
µ
A
REF
terminal
µ
A
DC characteristics
Reference voltage
selection output voltage
%
FET ON voltage
FET Drain-Source
voltage
FET drain leakage current
FET diode forward voltage
V
V
mA
V
Chopper off time
µ
s
AC characteristics
Switching time
µ
s
Data setup time "A"
Data hold time "B"
Data pulse time "C"
Clock pulse width "D"
Stabilization time
before strobe "E"
Strobe pulse H width "F"
44
SLA7042M/SLA7044M