IPS161H

Protection and diagnostic

DocID029436 Rev 2

15/25

Figure 6: Open load off-state

according to the the partitioning between the external pull-up resistor and the internal

= 115 kΩ).

The effect of the LED (if any) on the output pin has to be considered as well. In case of wire

the low resistive integrated switch. If the load is not connected, in order to guarantee the

correct open load signalization it must result:

Referring to the circuit in figure 6:

therefore:

(

+

)

If the load is connected, in order to avoid any false signalization of the open load, it must

result as follows:

By taking into account the circuit in figure 6:

+

+

)

so:

(

+

+

)

The fault condition is reported on the DIAG pin and the fault reset occurs when load is

reconnected.