NJM3772 Datasheet, PDF (1/9 Pages) New Japan Radio – DUAL STEPPER MOTOR DRIVER

DUAL STEPPER MOTOR DRIVER
NJM3772
s GENERAL DESCRIPTION
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
current is 1000mA per channel.
s PACKAGE OUTLINE
NJM3772D2
NJM3772FM2
s FEATURES
• Dual chopper driver
• 1000mA continuous output current per channel
• Specially matched to the Dual DAC NJU39610
• Packages DIP22 / PLCC28
s BLOCK DIAGRAM
NJM 3772
Phase ₁ V_R1
C₁
V_CC
V
CC
—
+
V_MM1
E₁
RQ
S
Logic
+
—
RC
Logic
+
SQ
R
—
Phase ₂ V_R2
C₂
GND
V_MM2
E₂
M _A1
M _B1
V_BB1
V_BB2
M _B2
M _A2
Figure 1. Block diagram