1-2-1 2-Phase Stepper Motor Unipolar Driver ICs
SLA7050M/SLA7051M/SLA7052M
2-Phase/1-2 Phase Excitation, Built-in Sequencer
sAbsolute
Maximum Ratings
Ratings
Parameter
Motor Supply Voltage
Load Supply Voltage
Logic Supply Voltage
Output Current
Logic Input Voltage
REF Input Voltage
Sense Voltage
Power Dissipation
Junction Temperature
Operating Ambient Temperature
Storage Temperature
Symbol
V
M
V
S
V
CC
I
O
V
IN
V
REF
V
RS
P
D1
P
D2
T
j
T
a
T
stg
1
SLA7050M
SLA7051M
46
46
7
2
–0.3 to V
CC
+0.3
–0.3 to V
CC
+0.3
–2 to +2
4 (Without Heatsink)
20 (T
C
=25°C)
+150
–20 to +85
–30 to +150
3
SLA7052M
Unit
V
V
V
A
V
V
V
W
W
°C
°C
°C
(T
a
=25°C)
sRecommended
Operating Conditions
Ratings
Parameter
Motor Supply Voltage
Load Supply Voltage
Logic Supply Voltage
REF Input Voltage
Case Temperature
Symbol
V
M
V
S
V
CC
V
REF
T
C
min.
10
3.0
0.1
max.
44
44
5.5
1.0
100
Unit
V
V
V
V
°C
The V
CC
surge voltage should be 0.5V or lower.
The control current precision is degraded at 0.1V or lower.
Temperature at pin-10 Lead (Without heatsink)
Remarks
sElectrical
Characteristics
Parameter
Symbol
min.
I
SS
Main Supply Current
Conditions
I
S
Conditions
I
CC
V
DSS
Conditions
R
DS (ON)
Conditions
V
SD
Conditions
F
clock
V
IL
V
IH
I
IL
I
IH
V
REF
REF Input Voltage
Conditions
V
REFS
Conditions
I
REF
VR
S
T
OFF
T
ON (min)
T
SE
Conditions
T
ONC
Switching Time
Conditions
T
OFFC
Conditions
100
V
REF
: 2.0→1.5V, I
O
: 0.75A
2.5
Clock→Out
2.0
Clock→Out
0
2
Output OFF (sleep)
±10
V
REF
12
5
100
V
REF
: 2.0→1.5V, I
O
: 1.5A
2.5
Clock→Out
2.0
Clock→Out
V
CC
·0.75
±1
±1
1.5
V
CC
0
2
Output OFF (sleep)
±10
V
REF
12
5
Normal-operation current control
I
D
=1A
1.2
I
SD
=1A
100
V
CC
·0.25
V
CC
·0.75
±1
±1
1.5
V
CC
I
SD
=1A
100
V
CC
·0.25
100
V
S
=44V, I
DSS
=1mA
0.85
I
D
=1A
1.1
Sleep mode
3
100
V
S
=44V, I
DSS
=1mA
0.5
Normal operation
100
Sleep mode
3
SLA7050M
typ.
max.
15
Normal operation
100
min.
Ratings
SLA7051M
typ.
max.
15
(V
CC
= 5V, V
S
= 24V, T
a
= 25°C, unless otherwise specified)
SLA7052M
min.
typ.
Normal operation
100
Sleep mode
3
100
V
S
=44V, I
DSS
=1mA
0.27
I
D
=3A
2.3
I
SD
=3A
100
V
CC
·0.25
V
CC
·0.75
±1
±1
0
2
Output OFF (sleep)
±10
V
REF
12
5
100
V
REF
: 2.0→1.5V, I
O
: 2.0A
2.5
Clock→Out
2.0
Clock→Out
1.5
V
CC
V
Normal-operation current control
max.
15
mA
Unit
µ
A
mA
V
Ω
V
kHz
V
Logic Supply Current
Output MOSFET Breakdown
Voltage
Output MOSFET ON Resistance
Output MOSFET Diode Forward
Voltage
Maximum Clock Frequency
Logic Input Voltage
Logic Input Current
µ
A
Normal-operation current control
REF Input Current
Sense Voltage
PWM OFF Time
PWM Minimum ON Time
Sleep - Enable Recovery Time
µ
A
V
µ
S
µ
S
µ
S
µ
S
104
ICs