TB67S149FG,EL

Overview

The TB67S149FG,EL is a unipolar stepper motor driver IC manufactured by Toshiba Semiconductor and Storage. It integrates control logic and power stages using Power MOSFET technology within a 28-pin HSOP package with an exposed tab for thermal management. The device supports parallel interface inputs and offers step resolution ranging from full step to 1/32 microstepping. It operates with a load voltage range of 10V to 40V and delivers an output current of 3A per phase. The component functions reliably across an ambient temperature range of -20°C to +85°C.

Feature Summary

• Fully integrated design combining control logic and power MOSFET output stages
• Supports variable step resolution from full step to 1/32 microstepping
• Parallel interface for straightforward digital control signal input

Applications

• Unipolar stepper motor drive systems
• General purpose motion control applications
• Automated equipment requiring precise positioning

Procurement Notes

Verify the specific package type upon ordering, as datasheets indicate both WQFN-48 and HSOP-28 variants exist under similar naming conventions. Confirm the manufacturer is Toshiba Semiconductor and Storage. Ensure the part number suffix matches the required physical footprint to avoid integration errors in PCB design.

Selection Notes

Select this component for applications requiring a compact solution for driving unipolar stepper motors. The choice depends on the need for integrated power stages and support for high-resolution microstepping up to 1/32. Consider the thermal performance provided by the exposed pad design when evaluating heat dissipation requirements for continuous operation at rated currents.

Part Context

This part belongs to the TB67S149 series of stepping motor drivers. The series includes variants such as TB67S149FTG,EL and TB67S149AFTG,EL, which may differ in package style or specific electrical characteristics. The FG variant specifically denotes the HSOP package configuration, distinguishing it from the QFN versions within the same functional family.

Replacement Considerations

TB67S149FTG,EL

FAQ

What is the maximum step resolution supported by this driver?

The TB67S149FG,EL supports a step resolution range from full step down to 1/32 microstepping.

What type of motor interface does this IC use?

It utilizes a parallel interface for receiving clock and direction signals to control the motor.