Toshiba Electronics Europe TC78H670FTG motor driver IC

TC78H670FTG is suited for use in USB powered and battery-powered applications as well as with standard 9-12 V system devices.

The micro-stepping control allows motors to be operated smoothly and quietly with reduced vibration and improved rotation angle accuracy.

Safety features like overcurrent detection, thermal shut down and open-load detection are incorporated. It is housed in a QFN16 package.

The footprint of 3x3mm, along with the elimination of the two current sense resistors by incorporating on-chip current detection, contributes to significant cost and space-saving in designs.

Key features

• 128-Step Microstepping
• ACDS: Advanced Current Detection System
• Compact QFN-16 Package (3.0 x 3.0 mm)
• High Maximum Motor Current of 2 A

Additional features

The new device offers low BOM cost, high motor current, and ultra-silent operation

Advantages

• Much higher step resolution than conventional stepper drivers
• Two costly and bulky shunt resistors on the PCB can be omitted
• Larger motors can be driven without the need for external MOSFETs

Benefits

• Ultra-silent operation and less vibration with improved rotation angle accuracy
• Reduced BOM cost and smaller PCB footprint
• No external shunt resistors save approx. 0.1USD and significant PCB space
• No need for external MOSFETs leads to reduced cost and PCB space

Applications

• 3D Printers
• Security Cameras
• Portable Printers
• Handheld Scanners
• Pico-Projectors
• Battery-Powered Medical Devices