Designated client product This product will be discontinued its production in the near term. And it is provided for customers currently in use only, with a time limit. It can not be available for your new project. Please select other new or existing products. For more information, please contact our sales office in your region. New Japan Radio Co.,Ltd. www.njr.com NJM3717 STEPPER MOTOR DRIVER GENERAL DESCRIPTION PACKAGE OUTLINE 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. NJM3717D2 NJM3717E2 ( DIP16 ) ( SOP20 ) 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 NJM3717FM2 Packages DIP16-D2 / PLCC28-M2 ( PLCC28-M2 ) SOP20 JEDEC 300mil BLOCK DIAGRAM Figure 1. Block diagram Ver.2013-01-21 - 1 -