DRV8833 Stepper / DC Motor Driver Module

DRV8833 Stepper / DC Motor Driver Module
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  • Brands CJMCU
  • Product Code:SQ4233
  • Availability: 1000
  • $4.52
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  • Ex Tax:$4.52
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Tags: Stepper Motor Driver, DC Motor Driver, Robot, H Bridge Driver, DRV8833, Dual Channel Driver

Description
Spin two DC motors or step one bi-polar or uni-polar stepper with up to 1.2A per channel using the DRV8833. This motor driver chip is a nice alternative to the TB6612 driver. Like that chip, you get 2 full H-bridges, but this chip is better for low voltage uses (can run from 2.7V up to 10.8V motor power) and has built in current limiting capability. We set it up for 1A current limiting so you don't get more than 2A per chip, but you can also disable the current limiting, or change it to a different limit!

We solder on DRV8833 onto a breakout board for you here, with a polarity protection FET on the motor voltage input. Each breakout chip contains two full H-bridges (four half H-bridges). That means you can drive two DC motors bi-directionally, or one stepper motor. Just make sure they're good for about 1.2 Amp or less of current, since that's the limit of this chip. They do handle a peak of 2A but that's just for a short amount of time, if you turn off the current limiting we set. What we like most about this particular driver is that it comes with built in kick-back diodes internally so you dont have to worry about the inductive kick damaging your project or driver! You also don't have to worry as much about burning out the chip with overdriving since there is current limiting.

There's two digital inputs per H-bridge (one for each half of the bridge), you can PWM one of the inputs to control motor speed. Runs at 2.7V-10.8V logic/motor power. The motor voltage is the same as the logic voltage, but logic voltage from 2.7V or greater will work so no need to worry if you are powering the motors from 9V and using 3.3V logic.

Power Pins
Vmotor - This is the voltage for the motors, not for the logic level. Keep this voltage between 2.7V and 10.8V. This power supply will get noisy so if you have a system with analog readings or RF other noise-sensitive parts, you may need to keep the power supplies seperate (or filtered!). The terminal block has a simple polarity protection on the + pin that feeds into VM. The VM pin is not protected, but VMotor is!
GND - This is the shared logic and motor ground. All grounds are connected

Signal in Pins
These are all '2.7V or higher logic level' inputs
AIN1, AIN2 - these are the two inputs to the Motor A H-bridges. If you want to use speed control, PWM the pin that is normally high. If you dont need PWM control, connect them to logic high/low.
BIN1, BIN2 - these are the two inputs to the Motor B H-bridges. If you want to use speed control, PWM the pin that is normally high. If you dont need PWM control, connect them to logic high/low.
FLT -This is the Fault output, which will drive low if there's a thermal shutdown or overcurrent. Note it is open drain so connect a pullup resistor to your desired logic voltage!
STBY - this is the standby pin for quickly disabling the driver. By default it is pulled low with an internal 500K resistor, so the chip is not active! Connect to a logic high pin either directly or via a pullup resistor to enable the motor control!

Package Include:
1x DRV8833 Module
Electrical Parameters
Voltage DC 2.7-10.8V
Current 2A

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