TI introduces industry's first integrated USB charging port power switch

The TPS2540 is the industry’s first host-side charging control integrated circuit with an onboard power switch to enable intelligent charging for portable electronics devices that draw power from a USB port.

Key features and benefits of TPS2540:

· Integration: with both the power switch and data switch, the TPS2540 saves space and cost. Low capacitance and low on resistance allow signals to pass with minimum edge and phase distortion.

· Greater power efficiency: reduces standby current draw.

· Interoperability: supports Chinese and Europe design requirements, as well as popular proprietary charging modes.

· Accuracy: employs a “no-peaking” current limiting topology, which dramatically improves current-limit accuracy and reduces the size of the power supply.

· Reduction in charging time: allows devices to receive power faster than a typical USB port.

Supports any USB interface

The TPS2540 supports a wide range of TI USB 2.0 and 3.0 transceivers. It complements TI’s TUSB1310 (www.ti.com/tusb1310-pr), which is the industry’s first discrete SuperSpeed USB transceiver that enables USB 3.0 and USB 2.0 upstream and downstream functionality when used in conjunction with integrated digital cores. TI is the only supplier to provide end-to-end SuperSpeed USB solutions, including host controllers, hubs, peripherals, power management, ESD protection and signal integrity assurance.