Pololu G2 High-Power Motor Driver 18v17
The Pololu G2 high-power motor driver is a discrete MOSFET H-bridge designed to drive large brushed DC motors. The H-bridge is made up of one N-channel MOSFET per leg; the rest of the board contains the circuitry to take user inputs and control the MOSFETs. The absolute maximum voltage for this motor driver is 30V, and higher voltages can permanently destroy the motor driver. Under normal operating conditions, ripple voltage on the supply line can raise the maximum voltage to more than the average or intended voltage, so a safe maximum voltage is approximately 24V.
The versatility of this driver makes it suitable for a large range of currents and voltages: it can deliver up to 17A 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 Driver18v17is a second-generation successor to our originalHigh-Power Motor Driver 18v15and can be used as 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 24v13 by the number150on top of the tall silver electrolytic capacitor.
Features
Dimensions
| Size: | 1.3″ × 0.8″ |
|---|---|
| Weight: | 3.3 g1 |
General specifications
| Motor channels: | 1 |
|---|---|
| Minimum operating voltage: | 6.5 V |
| Maximum operating voltage: | 30 V2 |
| Continuous output current per channel: | 17 A3 |
| Current sense: | 0.02 V/A |
| Maximum PWM frequency: | 100 kHz |
| Minimum logic voltage: | 1.8 V |
| Maximum logic voltage: | 5.5 V |
| Reverse voltage protection?: | Y |