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MC3479 데이터 시트보기 (PDF) - ON Semiconductor
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MC3479
Stepper Motor Driver
ON Semiconductor
MC3479 Datasheet PDF : 12 Pages
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MC3479
+V
2.0 k
Ω
Typ
Digital Inputs
Phase A
Clock
CW/CCW
Full/Half Step
OIC
+V
1N5221A (3.0 V)
V
M
11
16
V
D
L1
1
3
7
MC3479
10
L2
2
L3
15
9
L4
8
4 5 12 13 6 14
Gnd
Bias/Set
R
B
Set
Normal
Operation
MC14049UB
or equivalent
Figure 11. Typical Applications Circuit
Motor
MC3479
6
Bias/Set
Normal
Operation
Reduced
Power
R
B
R
B1
MC14049UB
or equivalent
Ċ Suggested value for R
B1
(V
M
= 12 V) is 150 k
Ω
.
Ċ R
B
calculation (see text) must take into account
the current through R
B1
.
Figure 12. Power Reduction
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