This page was machine-translated and may differ from the original. View original

TI Launches Industry's First Integrated USB Charging Port Power Switch

Google 우선 소스Published2010.10.31 09:24

To shorten the charging time of mobile devices via the USB port
Intelligent host-mode charging power IC providing a shared standard-compatible solution


TI has launched a new power management device integrating a current-limiting power switch and a 2.6 GHz high-bandwidth signal switch optimized for USB interfaces. The TPS2540 is the industry's first to provide an onboard power switch with host-side charge control capable of intelligent charging for portable devices powered via a USB port. (For more information on samples and evaluation modules, please visit www.ti.com/tps2540-prkr )

The TPS2540 supports USB charging modes worldwide, including the upcoming Battery Charging 1.2 draft specification, Chinese and European regulatory requirements, and individual charging modes from leading electronics manufacturers. This IC is suitable for USB ports in various host applications, such as AC wall adapters, desktop PCs, docking stations, and auto-charging accessories. The TPS2540 is the first device to support charging portable devices via a USB port even when the host system is in standby mode.

Key Features and Advantages of the TPS2540
• Integration: The TPS2540 integrates power and data switches to reduce space and cost, and minimizes edge and phase distortion of transmitted signals through low capacitance and low ON resistance.
• Improved power efficiency: Reduced standby current consumption
• Compatibility: Supports Chinese and European design requirements as well as common individual charging modes.
• Accuracy: Significantly improves current-limit accuracy and reduces power supply size by employing a “no-peaking” current limiting topology.
• Reduced charging time: Supports faster power delivery to devices compared to standard USB ports

USB interface support
The TPS2540 supports various TI USB 2.0 and 3.0 transceivers. When used with an integrated digital core, it complements TI's TUSB1310 ( www.ti.com/tusb1310-prkr ), the industry's first discrete SuperSpeed USB transceiver supporting USB 3.0 and 2.0 upstream and downstream functions. TI host controller

본 기사에 대한 정정·반론·추후보도 청구는 보도 청구 안내를, 그간 게재된 보도문은 정정·반론보도 모아보기를 참고해 주세요.
명세환 기자
명세환 기자