The TPS2546 is a USB charging port controller and power switch with an integrated USB 2.0
high-speed data line (D+/D–) switch. TPS2546 provides the electrical signatures on D+/D– to support
charging schemes listed under . TI tests charging of popular mobile phones, tablets, and media
devices with the TPS2546 to ensure compatibility with both BC1.2 compliant, and non-BC1.2 compliant
devices.
In addition to charging popular devices, the TPS2546 also supports two distinct power
management features, namely, power wake and port power management (PPM) through the
STATUS pin. Power wake allows for power supply control in S4/S5 charging and
PPM the ability to manage port power in a multi-port application. Additionally, system wake up
(from S3) with a mouse/keyboard (both low speed and full speed) is fully supported in the
TPS2546.
The TPS2546 73-mΩ power-distribution switch is intended for applications where heavy
capacitive loads and short-circuits are likely to be encountered. Two programmable current
thresholds provide flexibility for setting current limits and load detect thresholds.
