SNVAA20 July 2021 DRV8833 , DRV8833 , LMR33630 , LMR33630
The overall design is a powerful tool that can be used to apply resistive loads. This design utilizes several different resistor values along the load resistor loop to increase the dynamic range of available load resistances. The resistance ranges of this design include a low, middle, and high range which are [0 to 1.5 ?], [1.6 to 4.5 ?] and [6 to 40.5 ?]. These ranges are ideal for common voltage rails such as 1.8 V, 3.3 V and 5 V. The overall profile is shown in Figure 5-1 and a demonstration of current sinking capability is shown in Figure 5-2.