Pololu G2 High-Power Motor Driver 18v17

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42,95 € (Net 36,09 € )

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SKU: PO2991
GTIN: 4060137019142
Category: Driver
Manufacturers: Pololu
MPN: 2991
Storage Tiers: Maintain

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 17 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.

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.

Note: Battery voltages can be much higher than nominal voltages when they are charged, so the maximum nominal battery voltage we recommend is 18 V (and use with 24 V batteries is not recommended) unless appropriate measures are taken to limit the peak voltage.

Operating voltage: 6.5 V to 30 V (absolute maximum)
Output current: 17 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. 20 mV/A; only active while H-bridge is driving)
Active current limiting (chopping) with default threshold of 40 A (can be adjusted lower)
Reverse-voltage protection
Undervoltage shutdown
Short circuit protection

Dimensions

Size: 1.3″ × 0.8″
Weight: 3.3 g. Without included connectors.

General specifications

Motor channels: 1
Minimum operating voltage: 6.5 V
Maximum operating voltage: 30 V. Absolute maximum; higher voltages can permanently destroy the motor driver. Recommended maximum is approximately 24 V, which leaves a safety margin for ripple voltage on the supply line. Not recommended for use with 24V batteries.
Continuous output current per channel: 17 A. Typical results with 100% duty cycle at room temperature.
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