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
„ Simplified clock-in stepping control
„ Microstepping at full-, half-, quarter-, eighth-, and sixteenth-steps
„ 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 current control with fixed off-time; off-time adjusted
automatically by step reference current ratio (3 levels)
„ Built-in synchronous rectifying circuit reduces losses at PWM off
„ Synchronous PWM chopping function prevents motor noise in Hold mode
„ Sleep mode for reducing the IC input current in stand-by state
„ Built-in protection circuitry against motor coil opens/shorts option available