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