Pololu Dual MC33926 Motor Driver CarrierPololu
The dual MC33926 motor driver carrier is a breakout board featuring two Freescale MC33926 H-bridge ICs. It can supply up to almost 3 A continuous current per channel to two brushed DC motors at 5 – 28 V, and it can tolerate peak currents up to 5 A per channel for a few seconds, making this a great general-purpose motor driver for medium-sized DC motors and for differential-drive robots that use such motors. The MC33926 supports ultrasonic (up to 20 kHz) pulse width modulation (PWM) of the motor output voltage, which eliminates the audible switching sounds caused by PWM speed control, and a current feedback circuit for each motor outputs an analog voltage on its respective FB pin that is proportional to the output current. Since this board is a carrier for the Freescale Semiconductor MC33926 H-bridge, we recommend careful reading of the MC33926 datasheet (1MB pdf).
For a single-driver version of this board, please consider the MC33926 motor driver carrier.
- Size: 1.10" x 1.8"1
- Weight: 0.25 oz
- Motor driver: MC33926
- Motor channels: 2
- Minimum operating voltage: 5 V2
- Maximum operating voltage: 28 V3
- Continuous output current per channel: 2.5 A4
- Current sense: 0.525 V/A
- Maximum PWM frequency: 20 kHz5
- Minimum logic voltage: 2.5 V
- Maximum logic voltage: 5.5 V
- Reverse voltage protection?: Y6
- 1. Without included hardware
- 2. Operation from 5 - 8 V reduces maximum current output.
- 3. The device is protected for transients up to 40 V.
- 4. Can be improved by addition of heat sink or forced air flow.
- 5. SLEW pin should be HIGH for frequencies above 10 kHz.
- 6. On motor voltage only; logic voltage does not have reverse protection.