Whereas standard high-side switches are typically used to drive a single load, smart eFuses are typically used to distribute power to zonal controllers or other systems that include multiple programmable loads. Given this safety-critical task, smart eFuses must be able to detect a detailed array of fault conditions in the system, including an open load. The open-load-while-enabled scheme presented above works to some extent. However, because the eFuse ON resistances are so low and zonal controllers' power consumption is minimal when the module is disabled, this can be difficult to distinguish between when the zonal controller is disabled and when there is a true open load fault. To address this condition, TI's smart eFuses introduce two more degrees of flexibility to distinguish between low-current operating states: open-load current sense scaling and ADC input scaling.