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OHM-0006Design demo · no physical photo

OHM-0006

Dual DC Motor Driver — 2-layer, 40 × 50 mm

Concept example2 layersRev A
MCU
None (motor driver)
Input
2.7–10.8V screw terminal
Layers
2
Size
40 × 50 mm
Parts
18
Assembly
Single-sided
Fabrication
Not fabricated
Physical testing
Not physically tested
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01

Prompt

Dual DC motor driver using DRV8833. Two H-bridges for two motors. Input voltage 2.7–10.8V via screw terminal. Logic input via headers (IN1, IN2, IN3, IN4). Reverse polarity protection. Motor output via screw terminals. Board size around 40 × 50 mm.
02

Schematic

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03

Layout & 3D

Top
Bottom
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04

Key features

A dual-channel DC motor driver board using TI DRV8833. Two independent H-bridges can drive two brushed DC motors or one stepper motor. Suitable for small robots, typically under 1.5 A per channel.

  • •DRV8833 dual H-bridge motor driver
  • •Two independent channels, up to 1.5 A per channel (peak 2 A)
  • •Input voltage: 2.7–10.8 V
  • •PWM frequency: up to 100 kHz
  • •Logic inputs: IN1, IN2 (motor A), IN3, IN4 (motor B)
  • •Screw terminals for motor outputs and power input
  • •Reverse polarity protection (P-MOSFET)
  • •Current sense resistors (0.2 Ω) for optional feedback
05

Notes

  • Do not exceed 10.8 V input or 1.5 A continuous per channel.
  • If motors stall or start under heavy load, peak current may exceed rating and trigger thermal shutdown. DRV8833 will recover automatically when it cools.
  • Add flyback diodes if using inductive loads other than motors (solenoids, relays); DRV8833 has internal diodes for motor back-EMF.
  • Logic high: 2.0 V minimum. Compatible with 3.3 V and 5 V microcontrollers.
  • Do not hot-plug motors while powered; it can damage the driver IC.
06

Files

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