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NJM3771

Part Number	NJM3771
Manufacturer	New Japan Radio
Description	DUAL STEPPER MOTOR DRIVER
Published	May 7, 2005
Detailed Description	NJM3771 DUAL STEPPER MOTOR DRIVER ■ GENERAL DESCRIPTION The NJM3771 is a stepper motor driver, which circuit is especi...
Datasheet	NJM3771 PDF File

Overview

NJM3771 DUAL STEPPER MOTOR DRIVER ■ GENERAL DESCRIPTION The NJM3771 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 NJM3771 contains a clock oscillator, which is common for both driver channels; a set of comparators and flip-flops imple menting the switching control; and two H-bridges with internal recirculation diodes.
Voltage supply requirements are +5 V for logic and +10 to +45 V for the motor.
Maximum output current is 650 mA per channel.
■ PACKAGE OUTLINE NJM3771D2 ( DIP22 ) NJM3771E3 ( SOP24 ) ■ FEATURES ● Dual chopper driver ● 650mA output current per channel ● Selectable slow / fast current decay for improved high- speed microstepping ● Specially matched to Dual DAC NJU39610 ● Packages DIP22-D2 / PLCC28-M2 SOP24 JEDEC 300 mil (Batwing) NJM3771FM2 ( PLCC28 ) ■ BLOCK DIAGRAM Ver.
2011-12-08 Figure 1.
Block diagram -1- NJM37...

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