1-2-1 2-Phase Stepper Motor Unipolar Driver ICs
SLA7065M/SLA7066M/SLA7067M 2-Phase to 2W 1-2 Phase Excitation Support, Built-in Sequencer
■Features
■Absolute Maximum Ratings
(Ta=25°C)
• Main supply voltage VBB: 46V (max), 10 to
44V recommended
Ratings
SLA7066M
Parameter
Symbol
Unit
SLA7065M
1.0
SLA7067M
3.0
• Logic supply voltage VDD: 3.0 to 5.5V support
• Lineup of output current IO: 1A, 2A, 3A
(maximum set current)
• Supporting the clock-input-method micro-step
drive (built-in sequencer)
• 2-phase excitation to 2W 1-2 phase excitation
support
Motor Supply Voltage
Driver Supply Voltage
Logic Supply Voltage
Output Current
VM
VBB
VDD
IO
46
46
V
V
7
V
2.0
A
Logic Input Voltage
REF Input Voltage
Sense Voltage
VIN
VREF
VRS
PD
–0.3 to VDD+0.3
–0.3 to VDD+0.3
–2 to +2 (tw >1µs)
3.5 (Without Heatsink)
+150
V
V
V
• Self-excitation PWM current control method
Power Dissipation
W
°C
°C
°C
• Built-in synchronous chopping function to
prevent the audible motor noise in the hold
state
Junction Temperature
Operating Ambient Temperature
Storage Temperature
Tj
Ta
–20 to +85
–30 to +150
• ZIP type 21-Pin mold package (SLA package)
Tstg
■Recommended Operating Conditions
Ratings
Parameter
Symbol
Unit
Remarks
min.
max.
44
Motor Supply Voltage
Driver Supply Voltage
Logic Supply Voltage
REF Input Voltage
VM
VBB
VDD
VREF
TC
V
V
10
3.0
0.1
44
5.5
1.0
90
V
The VDD surge voltage should be 0.5V or lower.
V
The control current precision is degraded at 0.1V or lower.
Temperature at pin-11 Lead (Without heatsink)
Case Temperature
°C
■Electrical Characteristics
(VDD=5V, VBB=24V, Ta=25°C, unless otherwise specified)
Ratings
SLA7066M
typ.
Parameter
Symbol
SLA7065M
typ.
SLA7067M
typ.
Unit
mA
min.
100
250
max.
15
min.
100
250
max.
15
min.
100
250
max.
15
IBB
Conditions
IBBS
Conditions
IDD
V (BR) DS
Conditions
RDS (ON)
Conditions
VF
Conditions
fclk
Conditions
VIL
In operation
Sleep mode
In operation
Sleep mode
In operation
Sleep mode
Main Supply Current
100
4
100
4
100
4
µA
Logic Supply Current
mA
Output MOSFET Breakdown Voltage
V
Ω
VBB=44V, ID=1mA
VBB=44V, ID=1mA
VBB=44V, ID=1mA
0.7
ID=1A
0.85
0.25
ID=2A
0.95
0.18
ID=3A
0.95
Output MOSFET ON Resistance
Output MOSFET Diode Forward Voltage
Maximum Clock Frequency
Logic Input Voltage
V
IF=1A
IF=2A
IF=3A
kHz
V
When Clock Duty = 50%
VDD·0.25
When Clock Duty = 50%
VDD·0.25
When Clock Duty = 50%
VDD·0.25
VIH
VDD·0.75
VDD·0.75
VDD·0.75
IIL
IIH
±1
±1
±1
±1
±1
±1
Conditions
IILM
IIH
Clock, Reset, CW/CCW, Sync
Clock, Reset, CW/CCW, Sync
Clock, Reset, CW/CCW, Sync
Logic Input Current
µA
–50
±1
–50
±1
–50
±1
Conditions
VREF
M1, M2
M1, M2
M1, M2
0
1.5
0
1.5
0
1.5
Conditions
VREFS
Conditions
IREF
Normal-operation current control
Normal-operation current control
Normal-operation current control
REF Input Voltage
REF Input Current
V
2
VDD
2
VDD
2
VDD
Output OFF (sleep)
Output OFF (sleep)
Output OFF (sleep)
±10
±10
±10
µA
VMoL
1.25
1.25
1.25
Conditions
VMoH
IMOL=1.5mA
IMOL=1.5mA
IMOL=1.5mA
Mo Output Voltage
V
VDD–1.25
VDD–1.25
VDD–1.25
Conditions
IMoL
IMoH
IMOH=–1.5mA
IMOH=–1.5mA
IMOH=–1.5mA
3
3
3
Mo Output Current
mA
µA
V
–3
–3
–3
Sense Terminal Inflow Current
Sense Voltage
ISENSE
VSENSE
Conditions
Mode F
Mode E
Mode C
Mode A
Mode 8
Mode 6
Mode 4
Mode 2
±10
1.00
±10
1.00
±10
1.00
0.95
1.05
0.95
1.05
0.95
1.05
When VREF = 1V in Mode F
When VREF = 1V in Mode F
When VREF = 1V in Mode F
100
98.1
92.4
83.1
70.7
55.5
38.2
19.5
100
98.1
92.4
83.1
70.7
55.5
38.2
19.5
100
98.1
92.4
83.1
70.7
55.5
38.2
19.5
%
Step Reference Current Ratio
.
.
.
=
=
=
Conditions VREF VSENSE=100%, VREF=0.1 to 1.0V
TONC
VREF VSENSE=100%, VREF=0.1 to 1.0V
VREF VSENSE=100%, VREF=0.1 to 1.0V
.
.
.
2.0
2.0
2.0
Conditions
TOFFC
Clock→OutON
Clock→OutON
Clock→OutON
Switching Time
µs
1.5
1.5
1.5
Conditions
TON (min)
Conditions
tOFF1
Conditions
tOFF2
Clock→OutOFF
Clock→OutOFF
Clock→OutOFF
1.8
Mode 2 to F
12
Mode 8 to F
9
1.8
Mode 2 to F
12
Mode 8 to F
9
1.8
Mode 2 to F
12
Mode 8 to F
9
µs
µs
PWM Minimum ON Time
Chopping OFF Time
Conditions
tOFF3
Mode 4 to 6
7
Mode 4 to 6
7
Mode 4 to 6
7
µs
Conditions
Mode 2
Mode 2
Mode 2
* The direction in which current flows out of the device is regarded as negative.
ICs
104
ETC [ ETC ]
