GENERAL DESCRIPTION NJU7380 is a controller with transrator which convert from input step and direction pulse to driver's phase signal for full and half step. NJU7380 translates from pulse input signal (Serial interface) to phase signal input, so NJM3700 series ...
ABSOLUTE MAXIMUM RATINGS PARAMETER Supply Voltage Input Voltage Output Current Operating Temperature Range Storage Temperature Range Power Dissipation RECOMMENDED OPERATING CONDITIONS V =4.75V 5.25V DD ELECTRICAL CHARACTERISTICS PARAMETER SYSMBOL Operating Current Level Input Voltage ...
NJU7380 APPLACATION INFORMATION V CC (+5V) 4 STEP SETP 1 Direction DIR 3 Half/Full Step HSM 4 RESET RESET 6 Ct SGND GND Fig.3 Typical stepper motor driver application with NJM3775. FUNCTIONAL DESCRIPTION NJU7380 is ...
HSM – half/full step mode switching This signal determines whether the stepping motor turns at half step or full step mode. The built-in phase logic is set to the half step mode when HSM is low level. Although HSM can ...
NJU7380 TIMING CHART Fig.5-1 Full-step mode,forward 4-step sequence Fig.5-2 Full-step mode,reverse 4-step sequence Fig.5-3 Half-step mode,forward 8-step sequence Fig.5-4 Half-step mode,reverse 8-step sequence - 6 - POR 1 2 DIR H HSM H STEP H PA OFF PB OFF DISA ...
ACD – auto current down function The ACD feature monitors step signals and sets the ACD pin output to H when the negative edge of a STEP signal is input. It then sets the ACD output to L after a ...