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Can I use IR2110, and feed it with two independent PWM signals, to drive two independent MOSFETs, each controlling a separate motor? (or high side and low side inputs/outputs of this chip gonna affect each other?)

I.e. two of this circuit, each controlling a separate motor's speed... (and each motor's speed needs to be controlled independently).

enter image description here
(source: bristolwatch.com)

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2 Answers 2

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The datasheet doesn't seem to indicate that there is any active cross conduction control, so the two channels are independent. If you want both to be low-side switched you can connect Vb to Vcc and Vs to COM.

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Maybe but you must compute deadtime needed to avoid cross conduction and use low side PWM to boost Vb for high side.

see What's the purpose of diode between high side and low side supply voltage of IR2110?

The circuit you show is just a low side switch which coasts the motor when off. Thus it has no de-acceleration speed control and relies on motor load, FYI only.

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