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Description
- Pololu G2 High Power Motor Driver 21A
- Controls one high-power DC brushed motor
- Output current: 21 A continuous
- Inputs compatible with 1.8 V, 3.3 V, and 5 V logic
- Operating voltage: 6.5 V to 40 V
Please note: 40 V Absolute maximum; higher voltages can permanently destroy the motor driver. The recommended maximum is approximately 34 V, which leaves a safety margin for ripple voltage on the supply line.
The Pololu G2 High Power Motor Driver 21A, 6.5V-40V enables bidirectional control of one high-power DC brushed motor. The small 1.3 x 0.8 inch board supports a wide 6.5 V to 40 V voltage range and is efficient enough to deliver a continuous 21 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.
It 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.
- Size: 1.3″ × 0.8″
- Weight: 5.0 g1
PDF File
- Motor channels: 1
- Minimum operating voltage: 6.5 V
- Maximum operating voltage: 40 V2
- Continuous output current per channel: 21 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