TB67S249FTG Stepper Motor Driver Compact Carrier Pololu

DESCRIPTION

This breakout board for Toshiba’s TB67S249FTG microstepping bipoloar stepper motor driver is arranged in the popular 16-pin Pololu form factor, making it a more compact alternative to our full breakout. It features adjustable current limiting and seven microstep resolutions (down to 1/32-step). Additionally, it dynamically selects an optimal decay mode by monitoring the actual motor current, and it can automatically reduce the driving current below the full amount 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 our carrier board can deliver approximately 1.6 A per phase continuously without a heat sink or forced air flow (up to 4.5 A peak). It features built-in protection against under-voltage, over-current, and over-temperature conditions.

• 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
• Adjustable current control lets you set the maximum current output with a potentiometer, which 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 modes by monitoring the state of current decay (not according to fixed timing)
• Configurable Active Gain Control (AGC) can be enabled to automatically reduce 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:
  • TB67S249FTG: 1.6 A (4.5 A peak)
  • TB67S279FTG: 1.1 A (2 A peak)
• Built-in regulator (no external logic voltage supply needed)
• Can interface directly with 3.3 V and 5 V systems
• Under-voltage lockout and protection against over-current/short-circuit and over-temperature
• Open-load detection
• Active-low error outputs indicate over-current, over-temperature, or open-load condition
• Compact size (0.6″ × 0.8″)
• 4-layer, 2 oz copper PCB for improved heat dissipation
• Exposed solderable ground pad below the driver IC on the bottom of the PCB

FEATURES

• Motor Driver: TB67S249FTG
• Minimum Operating Voltage: 10V
• Maximum Operating Voltage: 47V
• Continuous Current Per Phase: 1.6A
• Maximum Current Per Phase: 4.5A
• Minimum Logic Voltage: 2V
• Maximum Logic Voltage: 5.5V
• Microstep Resolution: Full, Non-Circular 1/2, 1/2, 1/4, 1/8, 1/16, 1/32
• Current Limit Control: Potentiometer
• Reverse Voltage Protection: No

RESOURCES

• TB67S249FTG datasheet
• TB67S279FTG datasheet
• TB67S279FTG and TB67S249FTG application note
• Schematic diagram of the TB67S279FTG/TB67S249FTG Stepper Motor Driver Compact Carrier
• Dimension diagram of the TB67S2x9FTG Stepper Motor Driver Compact Carrier 
• 3D model of the TB67S2x9FTG Stepper Motor Driver Compact Carrier 
• Drill guide for the TB67S2x9FTG Stepper Motor Driver Compact Carrier