Pololu G2 High-Power Motor Driver 24v21

Pololu item #: 2995 122 in stock

Price break Unit price (US$)
1 39.95
5 35.96
25 31.96
100 27.96

backorders allowed

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 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.

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 Description Specs (13) Pictures (8) Resources (3) FAQs (1) On the blog (1) 


Size: 1.3″ × 0.8″
Weight: 5.0 g1

General specifications

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

Identifying markings

PCB dev codes: md31b
Other PCB markings: 0J9488


Without included connectors or additional through-hole capacitors.
Absolute maximum; higher voltages can permanently destroy the motor driver. Recommended maximum is approximately 34 V, which leaves a safety margin for ripple voltage on the supply line.
Typical results with 100% duty cycle at room temperature.

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Pololu High-Power Motor Drivers
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