TPS2549 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.
TPS2549 Key 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
- 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