HIC (DC power input)
3-Phase Stepping Motor Drive
IC for Universal Controller
PMM3501
Micro step
Outline
The PMM3501 IC for stepping motor drive is a power hybrid IC (HIC) that consists of an energization mode generation
circuit and a switching device to drive 3-phase stepping motors in a single package.
It has been developed to facilitate the use of 3-phase stepping motors more easily so that you can easily configure a
micro step drive device only with this HIC and a few peripheral parts.
Features
• Micro step sine wave drive driver
• Built-in current detection resistor
• Adopting MOSFET as the power drive device to reduce heat generation
• All-in-one package reducing the number of parts of the peripheral circuit
• 5 energization modes available with an external bit signal
Maximum ratings
(TC=25˚C)
Item
Source voltage_1
Source voltage_2
Input voltage
Phase current
Board temperature during operation
Joint temperature
Conservation temperature
Symbol
Condition
Rating
Unit
V
CC1max
V
CC2max
V
inmax
I
Omax
T
Cmax
T
jmax
T
stg
V
CC2
=
0V
Without signal
Logic input terminal
37
7
7
6
0
~+
105
+
150
–
40
~+
125
V
V
V
A
˚C
˚C
˚C
V
CC2
=
5V,Clock
≧
100Hz
No condensation at low temperature
______
______
Recommended operating conditions
(Ta=15˚C)
Item
Source voltage_1
Source voltage_1
Input voltage
Phase current_1
Phase current_2
Clock frequency
Phase driver withstand voltage
Symbol
Condition
With signal
Without signal
______
Without heat sink
Rating
Unit
V
CC1
V
CC2
V
IH
I
O1
I
O2
Clock
V
DSS
16
~
30
5.0
±
5%
0
~
V
CC2
1.7
4.4
DC
~
50
60
V
V
V
A
A
kHz
V
T
C
=
105
˚C,
Clock
≧
100Hz
Pin 11 input frequency
(pulse duty: 50%)
I
D
=
10mA
(
T
C
=
25
˚C)
35
External Figures
(unit: mm)
Pin connection
1.
2.
3.
4.
5.
6.
7
.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17
.
18.
19.
20.
21.
22.
23.
24.
25.
26.
27
.
28.
V
CC1B
V
CC1C
–
PMM3101
Pin No.
Name
78
70
9
UO
WO
VO
Vz
V
CC1A
GND2
V
ref
Clock
Mode A
Mode B
Hold
CW
/
CCW
Enable
Reset
Mode C
GND1
MOI
V
CC2
–
PMM3501
21.5
+0.2
2–ø3.6–0.1
44
1
28
4
2
(8)
27x2=54
+0.2
0.5–0.05
+0.2
0.4–0.05
28.5
2.9
UI
VI
WI
–
P
.GNDA
P
.GNDB
Electrical characteristics
(TC=25˚C, VCC1=24V, VCC2=5V)
Rating
Item
Symbol
Condition
Min
Standard
Max
Unit
–
V
CC2
source current
Effective output current
I
CCO
I
oe
V
df
V
sat
I
OL
V
IH
V
IL
I
IL
V
rH
I
r
V
OH
V
OL
F
C
Enable
="
L
"
Each phase
R
/
L
=
2Ω
/
6mH
2W2
–
3
phase energization
6.1
1.03
1.0
0.30
–
–
–
12
1.14
1.6
0.40
0.1
–
mA
A
rms
V
V
mA
V
V
0.92
–
–
–
FET
diode forward voltage
Output saturation voltage
Output leak current
"H" level input voltage
"L" level input voltage
Input current
If
=
1A
(
RL
=
23Ω
)
RL=23Ω
RL=23Ω
Pins 11 to 18
Pins 11 to 18
Pins 11 to 18 = GND level
Pull-up resistance:20kΩ
4.0
–
1.0
550
V
CC2
/
2
810
–
115
0
440
2.5
–
250
–
µ
A
V
V
ref
input voltage
V
ref
input current
"H" level MOI output voltage
"L" level MOI output voltage
Pin 10
Pin 10 = 2.5 V
Internal resistance:4k
Ω
625
–
–
µ
A
V
V
kHz
Pins 20 – 19 = 820kΩ
Pins 21 – 20 = 1.6kΩ
–
0.4
39
PWM frequency
23
31
36
PMM3501
HIC (DC power input)
Function of each terminal
Function of each terminal
function
Motor current setting input
Pulse input for motor drive
Pause input
Motor rotational direction setting input
Power off input
System reset
Rotation monitor output
Input condition for operation
–
V
ref
Clock
Hold
CW
/
CCW
Enable
Reset
MOI
Mode C = "H": Rising edge operation
Mode C = "L": Rising edge and falling edge operation
Hold = "L" level
"H" level = CW rotation
"L" level = CCW rotation
Enable = "L" level
Reset = "L" level
"H" level output once for each phase current period
• The MOI output differs from the phase origin monitor output.
Energization mode table
Input
condition Energization mode
1 step angle
(degree)
Basic step division
Mode A
L
L
H
H
H
Mode B
L
H
L
H
H
Mode C
H
H
H
H
L
2EX
2
–
3EX
W2
–
3EX
2W2
–
3EX
4W2
–
3EX
1.2
0.6
0.3
0.15
0.075
1
2
4
8
16
• When Mode C = "L," 1 step operation is performed for each rising edge and falling edge of the Clock pulse.
If the duty ratio of the drive pulse moves out of the adjustment significantly by 50%, operation becomes unstable.
Example of Application Circuit
Vcc2(5V)
PMM3501
Clock
Mode A
Mode B
Mode C
Hold
CW / CCW
Enable
Reset
MOI
Vref
C3
10
19
9
27
28
P.GND
21
11
12
13
18
14
15
16
17
20
7
8
1
2
4
23
6
24
5
25
+
C1
+
C2
Vcc1
16~30
3
2
1
Stepping motor
+
C4
R1
R2
Recommended circuit part constants
C1
470µF
C2
6.8µF
C3
0.1µF
C4
10µF
For the R1 and R2 constants, determine the Vref voltage
according to the following equation.
Vref (V) = motor current adjustment value (A/phase) x 0.41
Notice that 100Ω is recommended for R2 due to the
configuration of the internal circuit of the PMM3101.
Place the GND side of the source by-pass capacitor of VCC1 (C1)
as close to pins 27 and 28 as possible to reduce noise.
37
Microchip MCU
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