20A Motor Driver V2 with Optocoupler Isolation


Quantity Price
1 - 9 $18.80
10 - 99 $16.80
100+ $15.20
SKU: MD_SG_20AOP2 Category:

This module is an upgraded version from 20A Single Channel Motor Driver Board.

What’s featured?

Small Size: 56.27mm x 26.80mm x 8.00mm

It would be much easier for user to integrate it into the system.

Large current tolerance: 20A working current and 160A peak current

By adding external cooling device or combining several boards, the current would be much larger.

Signal Isolation by Optocoupler

Controlling part could be prevented from the interference from motor. This point is very important for system stablilty.



Input PWM Signal Level (for PWM1 and PWM2)

2.8V ~ 5.5V

Input PWM Signal Current

≤8mA@3.3V PWM
≤12mA @ 5V PWM

Input Current through pin A

≤16mA@3.3V PWM
≤24mA @ 5V PWM

Supply Voltage for driver

2.3V ~ 5.5V

Typically 5V recommended

Supply Current

25mA ~ 100mA @ 5V

Power Voltage for motor

0 ~ 28V

PWM duty range


Working Current

Rising temperature under working current
I = 10A, △ T = 20 ℃ (no heat sink)
I = 20A, △ T = 45 ℃ (no heat sink)
I = 30A, △ T = 35 ℃ (natural cooling heat sink)
I = 50A, △ T = 45 ℃ (air cooling fans)

Peak working current


Please refer to the following manual for more information.


Product List

Motor driver board x1

Weight 0.025 kg
Qty Discounts Off Price

1-9, 10-99, 100+

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