TB67S559FTG(O,EL)

Overview

The TB67S559FTG(O,EL) is a BiCD Stepping Motor Driver IC manufactured by Toshiba Semiconductor and Storage. It supports a maximum supply voltage of 50 V and delivers an output current of 2.7 A. The device features 1/32 microstepping resolution and operates without external sense resistors. It utilizes a QFN32 5x5 package for surface mount installation. The operational temperature range spans from -40°C to +85°C, with a power dissipation rating of 1.3 W. The control interface functions at a frequency of 250 kHz.

Feature Summary

• Integrates 1/32 microstepping capability for high-resolution motion control
• Eliminates the need for external sense resistors through internal sensing architecture
• Provides four independent output channels for bipolar stepper motor driving

Applications

• Precision positioning systems requiring fine step resolution
• Industrial automation equipment with compact form factor constraints
• Office automation devices such as printers and scanners

Procurement Notes

Verify the specific suffix (O,EL) against the manufacturer's latest datasheet to confirm packaging and material compliance details. Ensure the design accommodates the specified thermal dissipation limits within the operating temperature range. Confirm that the application circuit does not require external sense resistors, as this component is designed for resistorless operation.

Selection Notes

Select this component when high microstepping resolution is required alongside a compact footprint. The absence of external sense resistors simplifies the bill of materials and reduces board space. Verify that the load voltage and current requirements fall within the 50 V and 2.7 A limits. Consider the QFN32 package thermal characteristics for adequate heat management in enclosed environments.

Part Context

This part belongs to Toshiba's TB67S series of stepping motor driver integrated circuits. The series is characterized by integration of control logic and power stages. The TB67S559 variant specifically targets applications needing finer step control than full-step drivers provide, while maintaining a small physical profile suitable for dense electronic assemblies.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.