46A 45V H-Bridge DC Motor Driver Module with Full PWM Control
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Prices updated: 12 Oct 2026
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About this product
A high-current H-bridge module for controlling the direction and speed of a brushed DC motor using PWM. It supports 5.9V to 45V and 46A continuous output, accepts TTL logic inputs at 3.3V to 5V, and offers 0 to 100% duty cycle at PWM frequencies up to 100 kHz. Intended for smart cars, robot drives and high-power DIY motor projects.
Specifications
- Operating voltage
- 5.9V – 45V DC
- Max continuous current
- 46 A
- Peak current
- 138 A
- Max continuous power
- 2000 W
- PWM duty cycle
- 0–100%
- PWM frequency
- 0–100 kHz
- Input logic level
- TTL (3.3V–5V)
- Operating temperature
- -40 °C to 150 °C
Frequently asked questions
Can the module run 46A continuously without a heatsink?
The 46A figure is the continuous rating, but real capability depends on cooling. The 138A peak is only for short durations. Use a heatsink and airflow for sustained high current.
How do I connect the control signals?
Feed the PWM signal from your microcontroller at 3.3V to 5V logic level. The listing gives a logic supply of 2.7V to 5.5V. Check the labels on the board for the PWM, direction and power pins before wiring.
