NJM3772D2 Nisshinbo

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 NJM3772 DUAL STEPPER MOTOR DRIVER n GENERAL DESCRIPTION n PACKAGE OUTLINE The NJM3772 is a stepper motor driver, which circuit is especially developed for use in microstepping applications in conjunction with the matching dual DAC (Digital-to-Analog Converter) NJU39610. The NJM3772 contains a clock oscillator, which is common for both driver channels, a set of comparators and flip-flops implementing the switching control, and two H-bridges with internal recirculation diodes. Voltage supply requirements are +5 V for logic and +10 to +45V for the motor. Maximum output NJM3772FM2 NJM3772D2 current is 1000mA per channel. n FEATURES Dual chopper driver 1000mA continuous output current per channel Specially matched to the Dual DAC NJU39610 Packages DIP22 / PLCC28 n BLOCK DIAGRAM E Phase V C V 1 1 R1 1 MM1 NJM 3772 V V CC CC R Q + S M A1 M Logic B1 V BB1 + V BB2 M B2 Logic M A2 RC S Q + R Phase V C GND V E 2 R2 2 MM2 2 Figure 1. Block diagram