SLVSDT3D January 2018 – December 2019 TPS25221
PRODUCTION DATA.
Some applications require that current limiting cannot occur below a certain threshold. For this example, assume that 1 A must be delivered to the load so that the minimum desired current-limit threshold is 1000 mA. Use the IOS equations and Figure 24 to select RILIM.
Select the closest 1% resistor less than the calculated value: RILIM = 49.9 kΩ. This sets the minimum current-limit threshold at 1 A . Use the IOS equations, Figure 24, and the previously calculated value for RILIM to calculate the maximum resulting current-limit threshold.
The resulting maximum current-limit threshold is 1186 mA with a 49.9 kΩ resistor.