PRELIMINARY
Notice: This is not a final specification.
Some parametric limits are subject to change.
(12). Output current timing chart under Ph inputs and I0, I1 output
conditions.
Under output current wave forms show the current that a
motor driver is going to control, so these do not show the
actual current wave forms.
MITSUBISHI <CONTROL / DRIVER IC>
M54679FP
2-PHASE STEPPER MOTOR DRIVER
<4 steps function>
(1)
Ph1A
Ph1B
Ph2A
Ph2B
I0(1),I0(2) L
I1(1),I1(2) L
Output current 1
(Current of Phase 1)
Output current 2
(Current of Phase 2)
(2)
(3)
100%
100%
100%
(4)
100%
AB
100%
0%
A
A
B
B
AB
Torque vector
B
(2)
(1)
(3)
(4)
B
AB
A
BA
<8 steps function>
B
1
2
3
4
5
6
7
8
AB
AB
Ph1A
100%
Ph1B
Ph2A
Ph2B
I0(1),I0(2)
70%
2
I1(1),I1(2)
3
1
Output current 1
(Current of Phase 1)
Output current 2
(Current of Phase 2)
A 0% A
4
8
A
5
7
A
B
6
B
AB
BA
B
<16 steps function>
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
B
Ph1A
Ph1B
Ph2A
Ph2B
I0(1)
I1(1)
I0(2)
I1(2)
AB
AB
100%
70%
4 32
5
1
31%
6
16
0%
7
A
8
15
A
14
Output current 1
(Current of Phase 1)
Output current 2
(Current of Phase 2)
A
9
13
10 11 12
A
B
AB
BA
B
B