342998 2998 - TB67S128FTG Stepper Motor Driver Carrier

2998 - TB67S128FTG Stepper Motor Driver Carrier

The Tic T500 USB Multi-Interface Stepper Motor Controller makes basic control of a stepper motor easy, with quick configuration over USB using our free software. The controller supports six control interfaces
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€12.20 Price
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Details

This breakout board makes it easy to use Toshiba’s TB67S128FTG microstepping bipolar stepper motor driver, which features adjustable current limiting and microstepping down to 1/128-step. In addition, it has the ability to dynamically select 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 consumption and heat generation. The driver has a wide operating voltage range of 6.5 V to 44 V and can deliver approximately 2.1 A per phase continuously without a heat sink or forced air flow (up to 5 A peak). It features built-in protection against under-voltage, over-current, and over-temperature conditions; our carrier board also adds reverse-voltage protection (up to 40 V).

This product is a carrier board or breakout board for Toshiba’s TB67S128FTG stepper motor driver; we therefore recommend careful reading of the TB67S128FTG datasheet (2MB pdf) before using this product. This stepper motor driver offers microstep resolutions down to 1/128 of a step, and it lets you control one bipolar stepper motor at up to approximately 2.1 A per phase continuously (5 A peak) without a heat sink or forced air flow (see the Power Dissipation Considerations section below for more information.) The board breaks out every control pin and output of the TB67S128FTG, making all of the driver’s features available to the user.

Here are some of the board’s key features:

  • Two interface modes to select from:
    • clock mode for simple step and direction control
    • serial mode for controlling the driver’s many features through a serial interface (this mode also allows for serial control of the current limit)
  • Eight different step modes: full-step, half-step, 1/4-step, 1/8-step, 1/16-step, 1/32-step, 1/64-step, and 1/128-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
  • Four different decay modes: mixed decay (two timing ratios), fast decay, or Advanced Dynamic Mixed Decay (ADMD), which 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) automatically reduces drive current to minimize power consumption and heat generation when maximum torque is not needed
  • Motor supply voltage: 6.5 V to 44 V
  • Can deliver up to approximately 2.1 A per phase continuously (5 A peak) without additional cooling
  • Can interface directly with 3.3 V and 5 V systems
  • 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
  • Carrier board adds reverse-voltage protection up to 40 V
  • Carrier board breaks out all of the TB67S128FTG pins in a compact size (1.2″ × 1.6″)
  • Exposed solderable ground pad below the driver IC on the bottom of the PCB

Included hardware

This product ships with all surface-mount components installed as shown in the product picture. However, soldering is required for assembly of the included through-hole parts. The following through-hole parts are included:

  • Two 1×16-pin breakaway 0.1″ male header strips
  • Three 2-pin, 3.5 mm terminal blocks (for board power and motor outputs)
  • One 0.1″ shorting block (for optionally connecting IOREF to the neighboring VCC pin when using this driver in 5 V systems)

The 0.1″ male headers can be broken or cut into smaller pieces as desired and soldered into the smaller through-holes. These headers are compatible with solderless breadboards, 0.1″ female connectors, and our premium and pre-crimped jumper wires. The terminal blocks can be soldered into the larger holes to allow for convenient temporary connections of unterminated power and motor wires (see our short video on terminal block installation). You can also solder your motor leads and other connections directly to the board for the most compact installation.

Power connections

The driver requires a motor supply voltage of 6.5 V to 44 V to be connected across VIN and GND. This supply should be capable of delivering the expected stepper motor current.

A 5 V output from the TB67S128FTG’s internal regulator is made available on the VCC pin. This output can supply up to 5 mA to external loads, and it can optionally be used to supply the neighboring IOREF pin.

Warning: Connecting or disconnecting a stepper motor while the driver is powered can destroy the driver. (More generally, rewiring anything while it is powered is asking for trouble.)

Dimensions

Size: 1.2″ × 1.6″
Weight: 5.7 g1

General specifications

Motor driver: TB67S128FTG
Minimum operating voltage: 6.5 V
Maximum operating voltage: 44 V
Continuous current per phase: 2.1 A
Maximum current per phase: 5.0 A
Minimum logic voltage: 2 V2
Maximum logic voltage: 5.5 V
Microstep resolutions: full, 1/2, 1/4, 1/8, 1/16, 1/32, 1/64, 1/128
Current limit control: potentiometer, digital, SPI-programmable
Reverse voltage protection?: Y3
Header pins soldered?: N

Identifying markings

PCB dev codes: md40a
Other PCB markings: 0J12364

Notes:

1 Without included hardware.
2 This is the input logic high threshold.
3 Note: Reverse voltage protection only works up to 40 V.

Product Page

Specifications

Part. No. : 2998

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