SLA7078MPRT Unipolar 2-Phase Stepper Motor Driver

SLA7078MPRT Unipolar 2-Phase Stepper Motor Driver

This document describes the SLA7070MPRT series, which are unipolar 2-phase stepping motor driver ICs. The SLA7070MPRT series employs a clock input method as a control signal input method, enabling full control of the device operation using only a few signal lines, instead of the conventional phase i.

Features

• Power supply voltages, VBB : 46 V (max.), 10 to 44 V normal operating range
• Logic supply voltages, VDD : 3.0 to 5.5 V
• Maximum output currents: 1 A, 1.5 A, 2 A, 3 A
• Built-in sequencer
• Full-, half-, and microstepping available (microstepping options are capable of full-, half-, quarter-, eighth-, and sixteenth-stepping Figure 1. SLA7070MPRT packages are fully molded ZIPs with an exposed pad for heatsink mounting.
• Built-in sense resistor, RSInt
• All variants are pin-compatible for enhanced design flexibility
• ZIP type 23-pin molded package (SLA package)
• Self-excitation PWM curren.