ZHCSKK3B December 2019 – February 2022 TPS6594-Q1
PRODUCTION DATA
Each BUCK regulator includes a SW_Bx Short-to-Ground Detection. This SW_Bx Short-to-Ground Detection monitors whether the SW_B1...SW_B5 pins have a short-to-ground condition, either caused by external short on these pins or caused by a short in the low-side power-FET of the BUCK regulator. This SW_Bx Short to Ground Detection is activated before the power-up of the BUCK regulator. When this function detects a short-to-ground condition on the SW_B1...SW_B5 pins, the TPS6594-Q1 aborts the power-up sequence and sets the corresponding interrupt bits BUCKx_SC_INT (x=1...5). After this, the TPS6594-Q1 transitions to the SAFE RECOVERY state, after which it performs an attempt to restart as described in Section 8.4.1.1.