SCPS267B March 2017 – February 2020 TCA9803
The Input external current (IEXT-I) and output external current (IEXT-O) parameters describe the amount of parasitic current either injected into the device or pulled from the device (such as leakage from ESD cells) without affecting device operation as shown in Table 4.
|PARAMETER||SHORT DESCRIPTION||DETAILED INFORMATION|
|IEXT-I||Input leakage current||Current that is external, but pulled up to supply, leaking current into the TCA980x B-side. An example is a leaky ESD cell from VCC, or an external pull-up resistor.||See the IEXT-I section|
|IEXT-O||Output leakage current||Current that is pulled from the TCA980x B-side. ESD cells are the most common form of output leakage. Care must be taken not to violate this spec, otherwise the leakage current can create a false low.||See the IEXT-O section|