TPS2549

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS2549 SLUSCP2 – SEPTEMBER 2016 TPS2549 USB Charging Port Controller and Power Switch With Cable Compensation 1 Features 1 4.5-V to 6.5-V Operating Range 47-mΩ (typical) High-Side MOSFET 3-A Maximum Continuous Output Current ±5% CS Output for Cable Compensation CDP Mode per USB Battery Charging Specification 1.2 Automatic DCP Modes Selection: – Shorted Mode per BC1.2 and YD/T 1591-2009 – 2.7-V Divider 3 Mode – 1.2-V Mode D+ and D– Client Mode for System Update D+ and D– Short-to-VBUS Protection D+ and D– ±8-kV Contact and ±15-kV Air Discharge ESD Rating (IEC 61000-4-2) UL Recognition and CB Certification Pending –40°C to 125°C Junction Operating Temperature 16-Pin QFN (3-mm × 3-mm) Package 2 Applications USB Ports (Host and Hubs) Wall Charging Adapters Aftermarket Automotive Chargers 3 Description The TPS2549 device is a USB charging port controller and power switch with a current-sense output that is able to control an upstream supply. This allows it to maintain 5 V at the USB port even with heavy heavy charging currents. This is important in systems with long USB cables where significant voltage drops can occur while fast-charging portable devices. The TP2549 47-mΩ power switch has two selectable, programmable current limits that support port power management by providing a lower current limit that can be used when adjacent ports are experiencing heavy l...