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    Parts    TB67S549FTG,EL
TB67S549FTG,EL

TB67S549FTG,EL

Toshiba Semiconductor and Storage
Bipolar Motor Driver DMOS PWM 24-QFN (4x4)
Active7,361 in stock
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Overview

The TB67S549FTG is a bipolar stepper motor driver that integrates a DMOS PWM control circuit into a compact 24-QFN package. It supports a supply voltage range of 4.5V to 33V and delivers a peak output current of 1.2A. This fully integrated driver handles both the control logic and power stage, making it suitable for space-constrained applications requiring precise motor movement.

Why Choose This Part

This driver features a broad 1/1 to 1/32 step resolution for reduced noise and smoother rotation compared to basic full-step drivers. Its wide supply voltage range starting at 4.5V allows for use in both 5V logic systems and standard 24V industrial rails. The integrated DMOS technology ensures low Rds(on), which minimizes thermal overhead in high-density PCB layouts.

Applications

3D Printers and Office Automation
Provides the 1/32 step resolution needed for high-precision head positioning and smooth paper feeding mechanisms.
Small Scale Robotics
Ideal for driving NEMA 11 and NEMA 14 stepper motors in battery-operated or 24V industrial robotic platforms.
Medical Equipment
Used in laboratory automation and peristaltic pumps where quiet, low-vibration motor operation is critical.
Surveillance Systems
Drives pan-tilt-zoom (PTZ) camera mechanisms with high accuracy and minimal heat dissipation.

Key Specifications

Function Driver - Fully Integrated, Control and Power Stage
Interface PWM
Technology DMOS
Applications General Purpose
Mounting Type Surface Mount
Package / Case 24-VFQFN Exposed Pad
Voltage - Load 4.5V ~ 33V
Step Resolution 1 ~ 1/32
Current - Output 1.2A
Voltage - Supply 4.5V ~ 33V
Motor Type - AC, DC Brushed DC
Motor Type - Stepper Bipolar
Output Configuration Half Bridge (2)
Operating Temperature -40degC ~ 85degC
Supplier Device Package 24-QFN (4x4)

Getting Started

To evaluate this IC, look for Toshiba's Mikroe-based Click boards or official evaluation modules that breakout the QFN-24 pins. Implementation requires a PWM signal for the clock input and standard logic levels for direction and step configuration. Ensure adequate thermal relief via the bottom exposed pad to manage heat during continuous 1.2A operation.

Also Consider

DRV8825 TITexas Instruments - Supports higher current up to 2.5A and higher voltage up to 45V if more power is required.
A4988 Allegro MicroSystems - A widely used industry standard alternative, though it offers lower step resolution (max 1/16).
TMC2208 Trinamic - Offers superior silent operation features and advanced current control for noise-sensitive environments.