SLASEC2B November 2016 – February 2019 TAS2557
The TAS2557 has an integrated over-current protection that is enabled once the Class-D is powered up. Large currents in the range of 3-5 A on the Class-D output will trigger an over-current fault. Once the fault is detected, the TAS2557 disables the audio channel and powers down the Class-D amplifier. When an over-current event occurs, a status flag INT_OC is set. This register is sticky, and the bit remains high until the bit is read or the device is reset. The over-current event can also be used to generate an interrupt if required. Refer to IRQs and Flags section for more details. To re-enable the audio channel after a fault the Class-D, the device must be hardware or software reset and configuration must be re-loaded.