ZHCSCR7A June 2014 – November 2020 TPS2559
PRODUCTION DATA
Some applications require that current limiting must occur below a certain threshold. For this example, assume that 5A must be delivered to the load so that the minimum desired current-limit threshold is 5000 mA. Use the IOS equations and Figure 9-2 to select R(ILIM).
Select the closest 1% resistor less than the calculated value: RILIM = 24.9 kΩ. This sets the maximum current-limit threshold at 4950 A.
Use the IOS equations, Figure 9-2, and the previously calculated value for R(ILIM) to calculate the minimum resulting current-limit threshold.
The resulting minimum current-limit threshold minimum is 4445 mA and maximum is 4950 mA with a 24.9 kΩ ± 1%.