NJM3775D2 Datasheet | New Japan Radio

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 mon for both driver channels, a set of parators 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 750m A per channel. s PACKAGE OUTLINE NJM3775D2 NJM3775E3 NJM3775FM2 s Features - Dual chopper driver - 750 m A continuous output current per channel - Digital filter on chip eliminates external filtering ponents - Packages DIP22 / PLCC28 / EMP24(batwing) s BLOCK DIAGRAM Phase 1 Dis1 VR1 C1 NJM3775 - + E1 RQ S Logic + - RC Logic + - Phase 2 Dis 2 VR2 C2 E2 Figure 1. Block diagram M A1 M B1 VMM1 VMM2 M B2 M A2 s PIN CONFIGURATIONS NC 1 MB1 2 E1 3 MA1 4 VMM1 5 GND 6 GND...