MC3479 데이터 시트보기 (PDF) - Motorola => Freescale
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MC3479 Datasheet PDF : 10 Pages
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MC3479
Figure 11. Typical Applications Circuit
+V
2.0 kΩ
Typ
Digital Inputs
Phase A
Clock
CW/CCW
Full/Half Step
OIC
Set
Normal
Operation
+V
1N5221A (3.0 V)
VM
11
16
VD
L1
1
3
7
MC3479
10
L2
2
L3
15
9
L4
8
4 5 12 13 6 14
Gnd
Bias/Set
RB
MC14049UB
or equivalent
Motor
Figure 12. Power Reduction
MC3479
6
Bias/Set
Normal
Operation
Reduced
Power
RB
RB1
MC14049UB
or equivalent
— Suggested value for RB1 (VM = 12 V) is 150 kΩ.
— RB calculation (see text) must take into account
the current through RB1.
8
MOTOROLA ANALOG IC DEVICE DATA
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