ZHCSHG3B november 2017 – july 2020 TPS254900A-Q1
PRODUCTION DATA
请参考 PDF 数据表获取器件具体的封装图。
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 current limit of the non-charging port is based on the ILIM_LO setting. The non-charging ports are automatically toggled back to charging ports when a charging port deasserts STATUS.
STATUS asserts in a charging port when the load current is above ILIM_LO + 30 mA for 210 ms (typical). STATUS deasserts in a charging port when the load current is below ILIM_LO – 20 mA for 3 seconds (typical).