TB67S249FTG Stepper Motor Driver Compact Carrier

The TB67S249FTG bipolar stepper motor driver comes in the popular 16-pin Pololu form factor and features adjustable current limiting and seven microstep resolutions (down to 1/32-step). In addition, it dynamically selects an optimal decay mode by monitoring the actual motor current, and it can automatically reduce the drive current below the full value when the motor is lightly loaded, to minimize power and heat.

The TB67S249FTG has a wide operating voltage range of 10 V to 47 V and can deliver approx. 1.6 A continuously per phase without a heat sink or forced airflow (up to 4.5 A peak).

The board 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
• With adjustable current control, you can set the maximum current output with a potentiometer. This lets you 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 mode by monitoring the status 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% to minimize power consumption and heat generation when maximum torque is not needed.
• Motor supply voltage: 10 V to 47 V
• Maximum continuous current per phase without additional cooling: 1.6 A (4.5 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 load conditions
• 4-layer copper PCB for improved heat dissipation
• Exposed solderable ground pad under the driver IC on the underside

Specifications:

• Motor driver: TB67S249FTG
• Minimum operating voltage: 10 V
• Maximum operating voltage: 47 V
• Continuous current per phase: 1.6 A
• Maximum current per phase: 4.5 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
• Header pins soldered?: No
• Size: 1.52 x 2 cm
• Weight: 1.5 g