ZHCSF47E June 2016 – December 2017 TAS2560
PRODUCTION DATA.
The TAS2560 has an integrated over temperature protection that is enabled once the Class-D is powered up. If the device internal junction temperature exceeds the safe operating region it will trigger the over-temperature fault. Once the fault is detected the TAS2560 disables the audio channel and powers down the Class-D amplifier. By default the device is set to auto-retry and will attempt to power up the class-D every 100ms. If the over-termperature condition is still present it will shut-down again. The auto-retry can be disabled by setting the register field PROT_OT_AR high. When an over-temperature event occurs, a status flag at INT_ORVT is set. This register is sticky and the bit will remain high for as long as it is not read, or the device is not reset. The over temperature 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 powered back up using field PWR_DEV, see Table 53.
PROTECTION_CFG_1[2] (PROT_OT_AR) | Over Temperature Protection Auto-Retry |
---|---|
0 | Enabled (default) |
1 | Disabled |