ZHCSNE6 August 2021 TPS1653
PRODUCTION DATA
When the device is started with short-circuit on the output, the current begins to limit at I(OL). Due to high power dissipation of VIN × I(OL) within the device the junction temperature increases. Subsequently, the thermal regulation control loop limits the load current to regulate the junction temperature at T(J_REG), 145°C (typical) for a duration off t(Treg_timeout), 1.25 sec (typical). Subsequent operation of the device depends on the MODE configuration (Auto-Retry or latch OFF) setting as per Table 8-2. FLT gets asserted after t(Treg_timeout) and remains asserted till the output short-circuit is removed. Figure 8-6 illustrates the behavior of the device in this condition.
VIN = 58 V | ILIM = 4.5 A |