TB67S109AFTG,EL

Overview

The TB67S109AFTG,EL is a two-phase bipolar stepper motor driver IC manufactured by Toshiba Semiconductor and Storage. It utilizes BiCD process technology and integrates a PWM chopper with an internal clock decoder. The device supports step resolutions from full step to 1/32 step. It features Advanced Dynamic Mixed Decay (ADMD) for optimized high-speed current control and includes error detection outputs for thermal shutdown and overcurrent conditions. The output stage employs low on-resistance power MOSFETs.

Feature Summary

• Integrates a PWM chopper and internal clock decoder for simplified system design
• Employs Advanced Dynamic Mixed Decay (ADMD) technology to optimize high-speed motor current tracking
• Provides comprehensive error detection with signal outputs for thermal shutdown and overcurrent protection
• Features low on-resistance power MOSFET output stages to minimize heat generation

Applications

• Automatic fishing reels and remote-controlled fishing boats
• Precision motion control systems requiring smooth operation
• General purpose bipolar stepper motor driving applications

Procurement Notes

Verify the specific suffix EL against official Toshiba documentation to confirm packaging type and reel specifications. Ensure compatibility with the required operating voltage range and thermal management requirements for the target application. Confirm that the 48-WQFN package footprint matches the PCB layout constraints.

Selection Notes

Select this component when precise control of a single bipolar stepper motor is required with integrated logic and power stages. The inclusion of ADMD makes it suitable for applications demanding high-speed performance without losing steps. Consider the thermal dissipation capabilities of the QFN package relative to the expected load current and ambient temperature conditions.

Part Context

This part belongs to the TB67S109A family of stepper motor drivers. The FTG variant denotes the P-WQFN48 package, while AFNG denotes HTSSOP48. The EL suffix typically indicates tape and reel packaging for automated assembly processes. These devices are designed to replace older discrete solutions or less integrated driver chips in compact designs.

Replacement Considerations

TB67S109AFNG serves as a pin-compatible alternative with a different package type. TB67S209FTG is a newer version offering similar functionality with potential updates. Verify pinout and electrical characteristics before substituting.