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Pololu G2 High-Power Motor Driver 18v25
0104110000014641
New product
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.
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Overview
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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 30 V, 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 24 V.
Features
- Operating voltage: 6.5 V to 30 V (absolute maximum)
- Output current: 25 A continuous
- Inputs compatible with 1.8 V, 3.3 V, and 5 V logic
- PWM operation up to 100 kHz
- Current sense output proportional to motor current (approx. 10 mV/A; only active while H-bridge is driving)
- Active current limiting (chopping) with default threshold of 60 A (can be adjusted lower)
- Reverse-voltage protection
- Under voltage shutdown
- Short circuit protection