Selecting an appropriate current monitor.

A search for 10 V/V current-sense amplifiers indeed finds these two.

The difference between the A/B grades is their accuracy.

The difference between the 296 and the 241 is that the latter has a PWM rejection feature:

When INA241x senses the large common-mode ΔV/Δt transients, it holds the output for 1 μs, thereby preventing the common-mode disturbance from propagating to the output. If another common-mode transient occurs during the following 3 μs, INA241x relies on high BW and AC CMMR to attenuate the effect of common-mode transient. The enhanced PWM rejection is achieved up to a PWM frequency of 125 kHz or if common-mode transient edges are separated by a 3 μs interval or more.