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Pololu G2 High-Power Motor Driver 18v25
This discrete MOSFET H-bridge motor driver enables bidirectional control of one high-power DC brushed motor. The small 1.3″ × 0.8″ board supports a wide 6.5 V to 30 V voltage range and is efficient enough to deliver a continuous 25 A without a heat sink. Additional features of this second-generation (G2) driver include reverse-voltage protection along with basic current sensing and current limiting functionality.
Compare all products in Pololu High-Power Motor Drivers or Single-Channel G2 and H2 High-Power Motor Drivers.
| Description | Specs (13) | Pictures (8) | Resources (3) | FAQs (1) | On the blog (2) |
|---|
Dimensions
| Size: | 1.3″ × 0.8″ |
|---|---|
| Weight: | 5.0 g1 |
General specifications
| Motor channels: | 1 |
|---|---|
| Minimum operating voltage: | 6.5 V |
| Maximum operating voltage: | 30 V2 |
| Continuous output current per channel: | 25 A3 |
| Current sense: | 0.01 V/A |
| Maximum PWM frequency: | 100 kHz |
| Minimum logic voltage: | 1.8 V |
| Maximum logic voltage: | 5.5 V |
| Reverse voltage protection?: | Y |
Identifying markings
| PCB dev codes: | md31b |
|---|---|
| Other PCB markings: | 0J9488 |
Notes:
- 1
- Without included connectors.
- 2
- Absolute maximum; higher voltages can permanently destroy the motor driver. Recommended maximum is approximately 24 V, which leaves a safety margin for ripple voltage on the supply line. Not recommended for use with 24V batteries.
- 3
- Typical results with 100% duty cycle at room temperature.
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