Functional description

STSPIN230

14/22

DocID029312 Rev 4

6.3

Overcurrent and short-circuit protection

The device embeds circuitry protecting each power output against the overload and short-

circuit conditions (short to ground, short to VS and short between outputs).

When the overcurrent or the short-circuit protection is triggered the power stage is disabled

and the EN\FAULT input is forced low through the integrated open-drain MOSFET

The power stage is kept disabled and the open-drain MOSFET is kept ON until the

Figure 4. Overcurrent and short-circuit protections management

The total disable time after an overcurrent event can be set by properly sizing the external

network connected to the EN\FAULT pin (refer to Figure 4):

Equation 1

contribution:

Equation 2