TB6560AFG,8

Overview

The TB6560AFG,8 is a PWM chopper-type bipolar driver IC for stepping motor control. It supports sinusoidal-input microstep control with selectable excitation modes including 2-phase, 1-2-phase, 2W1-2-phase, and 4W1-2-phase. The device features a peak output current of 2.5 A and an internal on-resistance of 0.7 Ω (typical). It operates with a load voltage range of 4.5 V to 34 V and a supply voltage of 4.5 V to 5.5 V. The maximum operating frequency is 130 kHz, with a power dissipation of 4.2 W. It functions within a temperature range of -30°C to +85°C and is housed in a 64-HQFP package.

Feature Summary

• PWM chopper-type design enabling sinusoidal microstep control for low-vibration operation
• Selectable phase excitation modes supporting 2, 1-2, 2W1-2, and 4W1-2 configurations
• Integrated thermal shutdown protection and internal pull-down resistors on inputs

Applications

• Sinusoidal microstep control of two-phase bipolar stepping motors
• Forward and reverse driving applications requiring high-performance motion control
• Systems utilizing clock signal input for simplified motor management

Procurement Notes

Verify the specific suffix designation against official Toshiba documentation to confirm pinout and electrical characteristics. Ensure the procurement channel provides valid RoHS compliance data. Confirm the package type matches the required surface mount specifications. Validate the operating temperature range requirements against the component's rated limits before finalizing orders.

Selection Notes

Select this component when sinusoidal microstep resolution is required for smooth motor operation. The 2.5 A peak current rating suits moderate-load bipolar stepper applications. Consider the 64-HQFP package for space-constrained designs. Verify that the system voltage aligns with the specified load and supply ranges. Evaluate thermal management needs given the 4.2 W power dissipation capability.

Part Context

This part belongs to the TB6560AHQ/AFG series of BiCD integrated circuits. It is designed specifically for stepping motor control applications. The AFG variant distinguishes itself from the AHQ through its specific output current and resistance parameters. Both variants share the same core functionality and package options.

Replacement Considerations

The TB6560AHQ is a related variant within the same series offering higher peak current. Substitution requires verification of current handling capabilities and thermal performance. Ensure the alternative part supports the required excitation modes and package compatibility.