TPS2540A

www.ti.com TPS2540, TPS2540A TPS2541, TPS2541A SLVSAG2C – OCTOBER 2010 – REVISED OCTOBER 2011 USB Charging Port Power Switch and Controller Check for Samples: TPS2540, TPS2540A, TPS2541, TPS2541A FEATURES 1 2 Meets Battery Charging Specification BC1.2 for DCP and CDP Meets Chinese Telecommunications Industry Standard YD/T 1591-2009 Supports Sleep-Mode Charging for Most Available Apple® Devices and/or BC1.2 Compliant Devices Compatible With USB 2.0 and 3.0 Power Switch Requirements 2.6-GHz Bandwidth USB 2.0 Data Switch 73-mΩ (typ.) High-Side MOSFET Adjustable Current Limit up to 2.8 A (typical) OUT Discharge Through CTLx=000 (TPS2540/40A) or DSC (TPS2541/41A) Input Longer Detach Detection Time (TPS2540A/41A) Supporting Additional Legacy Devices Available in 16-Pin QFN Package APPLICATIONS USB Ports/Hubs Notebook PCs Universal Wall Charging Adapter DESCRIPTION The TPS2540/40A and TPS2541/41A are a combination of current-limited USB port power switch with a USB 2.0 high-speed data line (D+/D-) switch and a USB charging port identification circuit. Applications include notebook PCs and other intelligent USB host devices. The wide bandwidth (2.6 GHz) data-line switch also features low capacitance and low on resistance, allowing signals to pass with minimum edge and phase distortion. The TPS2540/40A/41/41A monitors D+ and D-, providing the correct hand-shaking protocol with compliant client devices. The TPS2540/40A/41/41A supports the following charging ...