L6228PD
Overview
The L6228PD is a DMOS fully integrated bipolar stepper motor driver capable of operating from 8V to 52V. It incorporates two independent constant tOFF PWM current controllers and decoding logic for full and half-step driving modes. The device integrates power DMOS switches with fast freewheeling diodes in a PowerSO-36 package designed for high power dissipation.
Why Choose This Part
The L6228PD features non-dissipative overcurrent protection and thermal shutdown to ensure high reliability in industrial environments. Its integrated DMOS structure eliminates the need for external freewheeling diodes, reducing PCB footprint and BOM complexity. Additionally, the dual PWM current controllers allow for efficient current regulation with selectable fast/slow decay modes.
Applications
Key Specifications
Getting Started
To evaluate this driver, use the EVAL6228PD demonstration board which provides a reference layout for the PowerSO-36 package. Ensure the slug-up package is properly mated to a heatsink or thermal interface material for operation at the maximum 1.4A output current. Interface the parallel logic pins with any 3.3V or 5V microcontroller to command step and direction.
