JAJSPW0B June 2023 – June 2024 TPS543B25T
PRODUCTION DATA
The TPS543B25T PG pin is an open-drain output requiring an external pullup resistor to output a high signal. After the FB pin is between 92% and 108% of the internal voltage reference, soft start is complete, and after a 256µs deglitch time, the PG pin is deasserted and the pin floats. TI recommends a pullup resistor between the values of 10kΩ and 100kΩ to a voltage source that is 5.5V or less. PG is in a defined state after the VIN input voltage is greater than 1V but with reduced current sinking capability. When the FB is lower than 84% or greater than 116% of the nominal internal reference voltage, after a 8µs deglitch time, the PG pin is pulled low. PG is immediately pulled low if VIN falls below the UVLO, the EN pin is pulled low or the device enters thermal shutdown.