SLUSCE3C October 2015 – August 2020 TPS2549-Q1
PRODUCTION DATA
All ports are allowed to broadcast high-current charging. The current-limit is based on ILIM_HI. The system monitors the STATUS pin to see when high-current loads are present. Once the allowed number of ports asserts STATUS, the remaining ports are toggled to a non-charging port. The non-charging port current-limit is based on the ILIM_LO setting. The non-charging ports are automatically toggled back to charging ports when a charging port de-asserts STATUS.
STATUS asserts in a charging port when the load current is above ILIM_LO + 40 mA for 210 ms (typical). STATUS de-asserts in a charging-port when the load current is below ILIM_LO – 10 mA for 3 seconds (typical).