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MTD1121F データシートの表示(PDF) - Shindengen
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コンポーネント説明
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MTD1121F
Unipolar PWM Stepper Motor Driver
Shindengen
MTD1121F Datasheet PDF : 5 Pages
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Stepper Motor Driver IC
■Block diagram / Typical application
Vcc
CPU
or
GATE
ARRAY
Vcc
IN A
IN A
Vz
1
OUT A OUT A
COM OUT B OUT B
MTD1121F
Vmm
IN B
CPU
or
GATE
ARRAY
IN B
CR A
ONE
-
SHOT
+
Ct
Rt
Vref A
Vcc
Vs A
Rs A PG A
Rf
R1
Cf
Rs
R2
-
ONE
CR B
+
SHOT
TAB
PG B Rs B
Vs B
Vref B
LG
Rf
Rt
Ct
Rs
Cf
●Constant chopping current level
Ichop
=
Vref
Rs
●One shot off time
toff = 0.69
×Ct×Rt
●Recommended component values
Symbol
Recommended value
Unit
Rs
0.68
Ω
Cf
3300
pF
Rf
1.0
kΩ
Ct
3300
pF
Rt
8.2
kΩ
Vz
Vmm×1.2〜1.5
V
R1+R2
<10
kΩ
Shindengen Electric Mfg.Co.Ltd
W1001
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