TB9051FTG Hat two-channel driver for motors 28V / 2.6A - shield for Raspberry Pi - Pololu 2761

Index: PLL-12433 EAN: 5904422319212

Module with dual-channel driver of motors TB9051FTG working with voltages from 4.5 V to 28 V and current up to 2,6 A per channel (max 5 A). The system can be connected directly with connectors GPIO of minicomputer Raspberry Pi B+, 2, 3 and 3+.

TB9051FTG Hat two-channel driver for motors 28V / 2.6A - shield for Raspberry Pi - Pololu 2761
€32.50
€26.42 tax excl.
Waiting time: 4-6 weeks
Only on request
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Manufacturer: Pololu
Compatibility: Raspberry Pi

Specification

  • Supply voltage: 4.5 V to 28 V
  • Continuous output current per channel: 2.6 A
  • The maximum short-term current per channel: 5 A
  • PWM frequency: up to 20 kHz
  • Protection against incorrect attachment of power supply
  • Designed for connectorsof the Raspberry Pi B+ / 2 / 3 / 3+
  • A Python libraryto facilitate module maintenance
  • Dimensions: 65 x 56 mm
  • Weight: 14 g (without connectors)

 

The kit includes: module, screw connections, goldpin strip for self-assembly. In our offer you will find alsoassembled, ready to operate system.

 

Description

The module is based on a Freescale MC33926 and lets you control the motors with a supply voltage up to 28 V and a continuous current consumption of up to 3 A. The driver withstands seconds of jumping current up to 5 A. The speed of rotation can be controlled by the control signal of PWM.

 

Sterownik TB9051FTG

 

In combination with the Raspberry Pi, using a specially prepared libraries, you can easily control the speed and direction of rotation of two DC motors. Form and pins of the board allow for direct connection to minicomputer, as shown in the pictures above. The system uses a 40-pin GPIO connector.

 

The product is compatible with Raspberry Pi

The manufacturer provides a library of Python for users of the Raspberry Pi.

Sterownik TB9051FTG

Modes of operation

The power of the motors was separated from the Raspberry Pi B+. The voltage from the range of 4,5 V to 28 V should be connected to VIN and GND pins. The Raspberry must be powered via the microUSB connector.

 

Sterownik TB9051FTG

 

Connection

The following table shows which pins of the Raspberry Pi driver is used by motors:

 

Pin RPi

GPIO

Pin of

driver

Description
5 Motor 1 DIAG

Status pin. By default, in the high state. When an error of driver is detected, the driver switches to a low state.

6 Motor 2 DIAG

Status pin. By default, in the high state. When an error of driver is detected, the driver switches to a low state.

12 Motor 1 PWM

The PWM inputs to control the rotation speed of the motor.

The maximum PWM frequency is 20 kHz.

13 Motor 2 PWM

The PWM inputs to control the rotation speed of the motor.

The maximum PWM frequency is 20 kHz.

22 Motor 1 EN

By default, in the low state, it indicates the disabled outputs of the motors. To run the driver, you must specify the high status.

23 Motor 2 EN By default, in the low state, it indicates the disabled outputs of the motors. To run the driver, you must specify the high status.
24 Motor 1 DIR

Pin to choose the direction of rotation. In the low state, the current flows from output A to B. In high state - from B to A.

25 Motor 2 DIR Pin to choose the direction of rotation. In the low state, the current flows from output A to B. In high state - from B to A.

 

Modes of operation

The table shows the operation modes depending on the inputs:

 

EN DIR PWM MxA MxB Operation mode
1 0 PWM PWM (H/L) L Forward rotation at a certain speed PWM %.
1 1 PWM L PWM (H/L) Back rotation at a certain speed PWM %.
1 x 0 L

L

Braking (outputs connected to ground).
0 x x Z Z Disabled outputs.

 

The use of additional  pins of moduleTB9051FTG

The remaining inputs and outputs are not connected to the Raspberry Pi, however, they are available directly from the module. Board sets some of the outputs to high or low status through the ways which should be stopped before you connect them to something else. The following table shows the default settings of the configuration of these pins.

 

Pin of

driver

Description The default configuration
ENB

Reversed

input enable

By default, in the low state (enabled) via removable way.

OCC

Output of

too much current

By default, in the low state. Indicates about too high current.

OCM

Output for

current monitoring

It allows you to control the current. Approximately 500 mV / A.

 

Meals Raspberry Pi

The device provides power to the minicomputer from the input voltage of module (VIN). To stabilize the voltage required for the Raspberry Pi 5 V, you can solder the converter D24V10F5 in specially prepared holes 5 V (output voltage), GND (ground), VOUT (supply voltage of motor). 
Sterownik TB9051FTG

Voltage to 4.5 V
Voltage from 28.0 V
Current 2.6 A
Channels 2
Package width 10 cm
Package height 0.9 cm
Package depth 13.2 cm
Package weight 0.028 kg

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