Pololu G2 High-Power Motor Driver 18v25

This discrete MOSFET H-bridge motor driver enables bidirectional control of a high-power brushed DC motor. The small 1.3″ × 0.8″ board supports a wide operating voltage range of 6.5 V to 30 V and is efficient enough to deliver a continuous 25 A without a heat sink. Other features of this second-generation (G2) driver include reverse-voltage protection and basic current sensing and limiting functionality.

Features:

• H-bridge motor driver: can control one bidirectional brushed DC motor
  
• 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 (approximately 10 mV/A; only active while H-bridge is driving motor)
  
• Active current limiting (chopping) at a default threshold of 60 A (can be adjusted lower)
  
• Reverse-voltage protection
  
• Under-voltage shutdown
  
• Short circuit protection
  
• Dimensions: 1.3″ × 0.8″
  
• Two 0.086″ mounting holes for #2 or M2 screws

Specifications:

• Motor channels: 1
  
• Minimum operating voltage: 6.5 V
  
• Maximum operating voltage: 30 V
  
• Continuous current per channel: 25 A
  
• Current sensing: 0.01 V/A
  
• Maximum PWM frequency: 100 kHz
  
• Minimum logic voltage: 1.8 V
  
• Maximum logic voltage: 5.5 V
  
• Reverse voltage protection?: Yes

Documents:

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