TB6560AHQ,8

Overview

The TB6560AHQ,8 is a PWM chopper-type bipolar driver IC for stepping motor control, designed for sinusoidal-input microstep control. It utilizes BiCD process technology to achieve low on-resistance and high withstand voltage. The device supports selectable phase excitation modes including 2-phase, 1-2-phase, 2W1-2-phase, and 4W1-2-phase. Key electrical parameters include a control voltage of 4.5V to 5.5V, a motor drive voltage (Vm) range of 4.5V to 34V, and an output current capability of 3A. The typical on-resistance (Ron) is 0.6 Ω, with a high output withstand voltage (VDSS) of 40 V. The peak output current is specified at 3.5 A. The package is HZIP-25-P-1.27mm, and the operating temperature range is -30°C to +85°C.

Feature Summary

• Single-chip motor driver for sinusoidal microstep control of stepping motors
• High output withstand voltage due to BiCD process integration
• Supports forward and reverse rotation using only clock signals
• Includes thermal shutdown (TSD), reset, and enable pins

Applications

• Low-vibration, high-performance driving of two-phase bipolar stepping motors
• Applications requiring 2-phase, 1-2-phase, 2W1-2-phase, or 4W1-2-phase excitation modes
• Microstep control systems without microcontroller intervention via clock input

Procurement Notes

Verify the specific suffix '8' corresponds to the HZIP-25-P-1.27mm package variant when sourcing. Confirm that the application voltage does not exceed the 34V limit for the motor drive supply. Ensure thermal management strategies are adequate given the 3A continuous output rating, as heat dissipation is critical for maintaining performance within the specified operating temperature range.

Selection Notes

Select this component for applications requiring precise sinusoidal microstep control of bipolar stepper motors. It is suitable for designs needing high output voltage withstand and low internal resistance to minimize power loss. Consider the HZIP-25 package for through-hole mounting requirements. This IC simplifies system architecture by allowing direct clock-driven operation, reducing the need for complex external logic controllers.

Part Context

The TB6560AHQ is part of Toshiba's BiCD integrated circuit family, specifically engineered for stepping motor control. It shares design principles with the TB6560AFG but offers higher peak current capabilities. The device integrates power MOSFETs and control logic on a single silicon monolithic chip, providing a compact solution for motion control systems requiring high efficiency and reliability in industrial and automation environments.

Replacement Considerations

TB6560AFG,8 is a public confirmed substitute part number with similar functionality but different peak current ratings.