Pololu TB67S279FTG Stepper Motor Driver Compact Carrier

This breakout board for Toshiba's bipolar stepper motor driver TB67S279FTG is laid out in the familiar 16-pin Pololu form factor and is a compact alternative to the full breakout board.

It features adjustable current limiting and seven microstep resolutions (down to 1/32 step). In addition, the driver dynamically selects an optimal decay mode by monitoring the actual motor current. It can automatically reduce the drive current below the full value when the motor is lightly loaded, to minimize power and heat.

The TB67S279FTG has a wide operating voltage range of 10 V to 47 V and can deliver approximately 1.1 A per phase continuously without a heat sink or forced airflow (up to 2 A peak).

It has built-in protection against undervoltage, overcurrent and overtemperature.

Features:

• Simple step and direction control interface
• Seven different step modes: full step, non-circular half step, circular half step, 1/4 step, 1/8 step, 1/16 step and 1/32 step
• The adjustable current control lets you set the maximum current output with a potentiometer. This allows you to use voltages above your stepper motor's rated voltage to achieve higher step rates.
• Advanced Dynamic Mixed Decay (ADMD) dynamically switches between slow and fast decay modes by monitoring the state of the current decay (not according to fixed timing).
• The configurable Active Gain Control (AGC) can be enabled to automatically reduce the drive current by up to 40%. Power consumption and heat generation are minimized when maximum torque is not needed.
• Motor supply voltage: 10 V to 47 V
• Maximum continuous current per phase without additional cooling: 1.1 A (2 A peak)
• Built-in regulator (no external power supply required)
• Can be connected directly to 3.3 V and 5 V systems
• Undervoltage lockout and protection against overcurrent / short circuit and overtemperature
• Open-load detection
• Active-low fault outputs indicate overcurrent, overtemperature or open-load conditions
• Compact size 1.52 x 2 cm
• 4-layer 2 oz copper PCB for improved heat dissipation
• Exposed solderable ground pad under the driver IC on the bottom side

Specifications:

• Motor driver: TB67S279FTG
• Minimum operating voltage: 10 V
• Maximum operating voltage: 47 V
• Continuous current per phase: 1.1 A
• Maximum current per phase: 2 A
• Minimum logic voltage: 2 V
• Maximum logic voltage: 5.5 V
• Microstep resolutions: full, non-circular 1/2, 1/2, 1/4, 1/8, 1/16, 1/32
• Current limit control: potentiometer
• Reverse-voltage protection?: No
• Headers soldered?: No
• Size: 1.52 x 2 cm
• Weight: 1.5 g