TB9051FTG Single Brushed DC Motor Driver Carrier

£8.49 inc VAT

Availability: 1 in stock (can be backordered)

Brand: Pololu
Part Number: 2997
SKU: PPPOL2997
Barcode: 5055421000769

The TB9051FTG Single Brushed DC Motor Driver Carrier is a single-channel H-Bridge Motor breakout board that has the capability for bidirectional control of a DC motor from 4.5V to 28V. Supplying a continuous 2.6A, the Motor Driver can hit peak currents of up to 5A if only for a few seconds! The TB9051FTG is an excellent bit of kit however its SMD design can make it challenging for a beginner to use, this breakout board opens the IC up so you won’t have that problem!

Features

  • Single-channel H-bridge motor driver
  • Motor supply voltage: 4.5 V to 28 V
  • Output current: up to 2.6 A continuous (5 A peak)
  • Automatic current chopping feature helps prevent overheating by gracefully reducing power rather than abruptly shutting down
  • Under-voltage lockout and protection against over-current/short-circuit and over-temperature
  • Carrier board adds reverse-voltage protection
  • Active-low error output indicates over-current, over-temperature, under-voltage, or VCC over-voltage condition
  • Compact size (1.0″ × 1.0″)
  • Exposed solderable ground pad below the driver IC on the bottom of the PCB

Included Parts

Motor Driver Carrier Specifications

Motor driver:TB9051FTG
Motor channels:1
Minimum operating voltage:4.5 V
Maximum operating voltage:28 V
Peak output current per channel:5 A
Continuous output current:2.6 A
Current sense:0.5 V/A
Maximum PWM frequency:20 kHz
Reverse voltage protection?:Y

 

Truth Tables

TB9051FTG simplified truth table (PWM1 + PWM2)
InputsOutputsOperation
ENENBPWM1PWM2OUT1OUT2
10PWM0PWM (H/L)Lforward/brake at speed PWM %
0PWMLPWM (H/L)reverse/brake at speed PWM %
00LLbrake low (outputs shorted to ground)
11LL
0XXXZZcoast (outputs floating/disconnected)
X1XXZZ

 

TB9051FTG simplified truth table (PWM1 + PWM2 + EN)
InputsOutputsOperation
ENENBPWM1PWM2OUT1OUT2
PWM010PWM (H/Z)PWM (L/Z)forward/coast at speed PWM %
01PWM (L/Z)PWM (H/Z)reverse/coast at speed PWM %
0XXXZZcoast (outputs floating/disconnected)
X1XXZZ

Pinout

TB9051FTG Single Brushed DC Motor Driver Carrier

PINDefault StateDescription
VINReverse-protected 4.5 V to 28 V board power supply input.
GNDGround connection points for the motor and logic supplies. The control source and the motor driver must share a common ground.
VMThese pins give access to the motor power supply after the reverse-voltage protection MOSFET (see the board schematic below). They can be used to supply reverse-protected power to other components in the system. VM is generally intended as an output, but it can also be used to supply board power, and some of the VM and GND holes are spaced for the addition of an optional through-hole capacitor.
OUT1Motor output 1.
OUT2Motor output 2.
VCC5 V logic supply input.
OCCLOWOver-current response configuration input: by default, the driver remains disabled after an over-current condition, but if OCC is high, it automatically tries to resume driving after a short delay instead.
ENLOWEnable input: when EN is low, OUT1 and OUT2 are set to high impedance. PWM can be applied to this pin (typically done with ENB low and either PWM1 or PWM2 high). The default is for both enable pins to be disabling the driver.
ENBHIGHInverted enable input: when ENB is high, OUT1 and OUT2 are set to high impedance. Inverted PWM can be applied to this pin (typically done with EN high and either PWM1 or PWM2 high). The default is for both enable pins to be disabling the driver.
PWM1LOWControl/PWM input for OUT1.
PWM2LOWControl/PWM input for OUT2.
OCMCurrent monitor output: this pin provides an analog current-sense feedback voltage of approximately 500 mV per amp (only active while H-bridge is driving) through an on-board RC filter.
DIAGHIGHDiagnostic error output: driven low when certain faults have occurred or when the driver is disabled by the EN or ENB inputs. Otherwise, the board pulls this pin up to VCC.

 

Motor Driver Carrier Documents

 

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