ZHCSL08C October 2019 – August 2021 TPS8804
PRODUCTION DATA
An over-temperature shutdown (OTS) fault occurs if OTS_EN = 1 and the die temperature exceeds 125°C. The fault is masked for 300 μs after setting OTS_EN = 1. OTS_EN must be enabled for at least 300 μs in order to determine if the die has overheated. After the device detects an over-temperature condition, it disables all drivers, amplifiers, and regulators and sets OTS_ERR to 1. This action prevents additional temperature stress caused by a short circuit.
Similar to the MCU LDO fault, the device exits the OTS fault state with two methods:
When the device exits the OTS fault state, it re-enables all blocks that were enabled before the OTS fault occurred.