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 wide6.5V to 30Vvoltage range and is efficient enough to deliver a continuous25Awithout a heat sink. Additional features of this second-generation (G2) driver include reverse-voltage protection along with basic current sensing and current limiting functionality.
The versatility of this driver makes it suitable for a large range of currents and voltages: it can deliver up to 25A of continuous current with a board size of only 1.3″ × 0.8″ and no required heat sink. The module offers a simple interface that requires as few as two I/O lines while still allowing for your choice of sign-magnitude or locked-antiphase operation. A current sense output gives an indicator of motor current, and the driver can limit the motor current to a configurable threshold. The power supply inputs feature reverse-voltage protection, while integrated detection of various fault conditions helps protect against other common causes of catastrophic failure; however, please note that the board does not include over-temperature protection.
The G2 High-Power Motor Driver18v25is a second-generation successor to our originalHigh-Power Motor Driver 18v25. The G2 driver is much smaller than the original, but its interface and output capabilities make it a near drop-in replacement in typical applications. See “Differences from original high-power motor drivers” below for more details.
This version can be distinguished from the 24v21 by the number150on top of the tall silver electrolytic capacitors.
Features
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 |