TPS2540 Datasheet | Texas Instruments

.ti. 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 - 2 Meets Battery Charging Specification BC1.2 for DCP and CDP - Meets Chinese Telemunications Industry Standard YD/T 1591-2009 - Supports Sleep-Mode Charging for Most Available Apple® Devices and/or BC1.2 pliant Devices - patible 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 bination 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 pliant client devices. The TPS2540/40A/41/41A supports the following charging logic schemes: - USB 2.0 BC1.2 - Chinese Tele Standard YD/T 1591-2009 - Divider Mode, pliant with Apple devices such as i Pod® and i...