SLASEO2 May 2019 TAS5806MD
PRODUCTION DATA.
Under severe short-circuit event, such as a short to PVDD or ground, the device uses a peak-current detector, and the affected channel shuts down in < 100 ns if the peak current are enough. The shutdown speed depends on a number of factors, such as the impedance of the short circuit, supply voltage, and switching frequency. The user may restart the affected channel via I2C. An OCSD event activates the fault pin, and the I2 fault register saves a record. If the supply or ground short is strong enough to exceed the peak current threshold but not severe enough to trigger the OSCD, the peak current limiter prevents excess current from damaging the output FETs, and operation returns to normal after the short is removed.