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NJM3717
STEPPER MOTOR DRIVER
■ GENERAL DESCRIPTION The NJM3717 is a stepper motor diver, which consists of
a LS-TTL compatible logic input stage, a current sensor, a monostable multivibrator and a high power H-bridge output stage with built-in protection diodes.
The output current is up to 1200mA. Two NJM3717 and a small number of external components form a complete control and drive unit for stepper motor systems.
■ PACKAGE OUTLINE
■ FEATURES
● Half-step and full-step modes
● Switched mode bipolar constant current drive
● Wide range of current control
5 to 1200mA
● Wide voltage range
10 to 50V
● Thermal overload protection
● Packages
DIP16-D2 / PLCC28-M2
SOP20 JEDEC 300mil
NJM3717D2 ( DIP16 )
NJM3717E2 ( SOP20 )
NJM3717FM2 ( PLCC28-M2 )
■ BLOCK DIAGRAM
Figure 1.