1-2-1 2-Phase Stepper Motor Unipolar Driver ICs
SLA7070MR, MPR/7071MR, MPR/7072MR, MPR/7073MR, MPR
2-Phase/1-2 Phase Excitation Support, Built-in Sequencer
■Features
■Absolute Maximum Ratings
• Lineup of built-in current sense resistor and
built-in protection circuit-type
Parameter
Symbol
Ratings
Unit
V
Remarks
Motor Supply Voltage
Driver Supply Voltage
Logic Supply Voltage
Output Current
VM
46
• Power supply voltages, VBB: 46 V (max), 10 to
44 V normal operating range
V
BB
46
V
VDD
6
*1
V
• Logic supply voltages, VDD: 3.0 to 5.5 V
Io
A
Mode F
Logic Input Voltage
REF Input Voltage
Sense Voltage
V
IN
REF
RS
–0.3 to VDD+0.3
–0.3 to VDD+0.3
±2
V
• Maximum output currents: 1 A, 1.5 A, 2 A, and
3 A
V
V
V
V
Excluding tw<1µs
• Built-in sequencer
Power Dissipation
4.7
When T
a
= 25°C
= 25°C
• Self-excitation PWM current control with fixed
off-time
PD
W
17
When T
c
Junction Temperature
Operating Ambient Temperature
Storage Temperature
T
j
+150
°C
°C
°C
• Synchronous PWM chopping function
prevents motor noise in Hold mode
Ta
–20 to +85
–30 to +150
Tstg
• Sleep mode for reducing the IC input current
in stand-by state
*1: Output current value may be limited for the SLA7070MR, MPR (1.0 A), SLA7071MR, MPR (1.5 A), SLA7072MR, MPR
(2.0 A), and SA7073MR, MPR (3.0 A), depending on the duty ratio, ambient temperature, and heating conditions.
Be sure that junction temperature of Tj is not exceeded under any circumstances.
• ZIP type 23-pin molded package (SLA
package)
■Recommended Operating Conditions
Rating
Parameter
Symbol
Unit
Remarks
min.
max.
44
Motor Supply Voltage
VM
VS
V
V
Driver Supply Voltage
Logic Supply Voltage
Case Temperature
10
44
VCC
TC
3.0
5.5
90
V
The VCC surge voltage should be 0.5 V or lower
Temperature at Pin-12 Lead (without heatsink)
°C
■Electrical Characteristics
Ratings
Parameter
Symbol
Unit
Conditions
min.
100
typ.
max.
15
100
5
mA
µA
mA
V
In operation
Sleep 1 and Sleep 2 modes
I
BB
Main Supply Current
Logic Supply Current
IBBS
Icc
V(BR)DSS
VBB=44V, ID=1mA
SLA7070M, ID=1.0A
SLA7071M, ID=1.5A
SLA7072M, ID=2.0A
SLA7073M, ID=3.0A
SLA7070M, ID=1.0A
SLA7071M, ID=1.5A
SLA7072M, ID=2.0A
SLA7073M, ID=3.0A
When Clock Duty = 50%
Output MOSFET Breakdown Voltage
0.7
0.45
0.25
0.18
0.85
1.0
0.85
0.6
0.4
0.24
1.1
1.25
1.2
R
DS(ON)
Ω
Output MOSFET ON Resistance
V
F
Output MOSFET Diode Forward Voltage
V
0.95
0.95
2.1
250
kHz
V
Maximum Clock Frequency
Logic Input Voltage
Fclock
0.25VDD
V
IL
IH
IL
IH
0.75VDD
V
I
I
±1
±1
µA
Logic Input Current
0.04
0.04
0.04
0.04
2
0.3
0.45
0.4
0.45
VDD
SLA7070MR/7070MPR, within the current setting range
SLA7071MR/7071MPR, within the current setting range
SLA7072MR/7072MPR, within the current setting range
SLA7073MR/7073MPR, within the current setting range
Output (OFF) Sleep 1
V
REF
V
REF Input Voltage
V
REFS
REF
SENSE
SE
±10
VREF
µA
V
µS
µS
µS
REF Input Current
Sense Voltage
Sleep-Enable Recovery Time
I
When step reference current ratio is 100%
Sleep1&Sleep2
Clock → Out ON
V
100
T
2.0
1.5
t
t
con
coff
Switching Time
Clock → Out OFF
0.296
0.296
0.199
0.150
0.65
0.305
0.305
0.205
0.155
0.7
0.314
0.314
0.211
0.160
0.75
SLA7070MR/7070MPR, tolerance of ±3%
SLA7071MR/7071MPR, tolerance of ±3%
SLA7072MR/7072MPR, tolerance of ±3%
SLA7073MR/7073MPR, tolerance of ±3%
SLA7070MPR/7071MPR/7072MPR/7073MPR, when motor coil shorts out
SLA7070MPR/7071MPR
R
S
Ω
Sense Resistance
V
A
Overcurrent Sense Voltage
Overcurrent Sense Current
Vocp
Iocp
2.3
3.5
SLA7072MPR
4.6
SLA7073MPR
1.25
1.25
SLA7070MPR/7071MPR/7072MPR/7073MPR, IFlagL=1.25mA
SLA7070MPR/7071MPR/7072MPR/7073MPR, IFlagH=–1.25mA
V
V
I
I
FlagL
FlagH
FlagL
FlagH
Flag Output Voltage
V
1.25–VDD
–1.25
Flag Output Current
mA
SLA7070MPR/7071MPR/7072MPR/7073MPR
100
70.7
3.2
%
%
µs
µs
ModeF
Mode8
ton(min)
toff
Step Reference Current Ratio
PWM Minimum ON Time
PWM OFF Time
12
* The direction in which current flows out of the device is regarded as negative.
ICs
100
ETC [ ETC ]
