NJM37770
STEPPER MOTOR DRIVER
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GENERAL DESCRIPTION
NJM37770 is a stepper motor driver, which consists of a
LS-TTL compatible logic input stage, a current sensor, a
monostable multivibrator and a high power H-bridge output
stage. The NJM37770 is a high power version and pin-
compatible with the NJM37717and also NJM37770 is a
high voltage version with NJM3770A. Two NJM37770 and
a small number of external components form a complete
control and drive unit stepper motor systems.
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PACKAGE OUTLINE
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EATURES
鈥?Half-step and full-step operation
鈥?Switched mode bipolar constant current drive
鈥?Wide range of current control 5 -1500 mA
鈥?Wide voltage range 10 - 60 V
鈥?Thermal overload protection
鈥?Packages DIP16 (Batwing)
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BLOCK DIAGRAM
Figure 1. Block diagram