TPS2549
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 pensation
- 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-k V Contact and ±15-k V 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...
