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NJM3775 PDF Datasheet ( 特性, スペック, ピン接続図 )

部品番号 NJM3775
部品説明 DUAL STEPPER MOTOR DRIVER
メーカ New Japan Radio
ロゴ New Japan Radio ロゴ 

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NJM3775 Datasheet, NJM3775 PDF,ピン配置, 機能
NJM3775
DUAL STEPPER MOTOR DRIVER
s GENERAL DESCRIPTION
The NJM3775 is a switch-mode (chopper), constant-
current driver with two channels: one for each winding
of a two-phase stepper motor. NJM3775 is equipped
with a Disable input to simplify half-stepping operation.
The NJM3775 contains a clock oscillator, which is
common for both driver channels, a set of comparators
and flip-flops implementing the switching control, and
two output H-bridges, including recirculation diodes.
Voltage supply requirements are + 5 V for logic and +
10 to + 45 V for the motor. Maximum output current is
750mA per channel.
s PACKAGE OUTLINE
NJM3775D2 NJM3775E3
NJM3775FM2
s FEATURES
• Dual chopper driver
• 750 mA continuous output current per channel
• Digital filter on chip eliminates external filtering components
• Packages DIP22 / PLCC28 / EMP24(batwing)
s BLOCK DIAGRAM
NJM3775
Phase 1
Dis1 VR1
C1
VCC VCC
+
E1
RQ
S
Logic
+
RC
Logic
+ SQ
R
Phase 2
Dis 2 VR2
C2
GND
E2
Figure 1. Block diagram
M A1
M B1
VMM1
VMM2
M B2
M A2

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