TI TPS2540 USB端口电源充电解决方案

TI 公司的TPS2540和TPS2541集合了限流的USB端口电源开关和USB 2.0高速数据线(D+/D-)开关以及USB充电端口识别电路, 满足USB 2.0 BC1.2 (draft)和中国电信标准YD/T 1591-2009, USB 2.0数据带款2.6GHz,可调限流高达2.8A,主要用在笔记本电脑和其它智能USB主设备以及通用墙充电适配器.本文介绍了TPS2540和TPS2541主要特性,方框图以及典型应用框图, TPS2540 和TPS2541 EVM评估模块电路图和材料清单(BOM).
The TPS2540 and TPS2541 are a combination of current-limited USB port power switch with a USB 2.0 high-speed data line (D+/D-) switch and a USB charging port identification circuit. Applications include notebook PCs and other intelligent USB host devices. The wide bandwidth (2.6 GHz) data-line switch also features low capacitance and low on resistance, allowing signals to pass with minimum edge and phase distortion. The TPS2540/41 monitors D+ and D-, providing the correct hand-shaking protocol with compliant client devices.
The TPS2540/41 supports the following charging logic schemes:
USB 2.0 BC1.2 (draft)
Chinese Telecom Standard YD/T 1591-2009
Divider Mode, compliant with Apple devices such as iPod and iPhone
CTL1-CTL3 logic inputs are used to select one of the various charge modes provided by the TPS2540 and TPS2541.
TPS2540和TPS2541主要特性:
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Meets Battery Charging Specification BC1.2 (draft) for DCP and CDP
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Meets Chinese Telecommunications Industry Standard YD/T 1591-2009
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Supports Sleep-Mode Charging for Most Available Apple Devices and/or BC1.2 (draft) Compliant Devices
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Compatible With USB 2.0 and 3.0 Power Switch Requirements
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2.6-GHz Bandwidth USB 2.0 Data Switch
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73-mohm(typ.) High-Side MOSFET
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Adjustable Current Limit up to 2.8 A (typical)
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OUT Discharge Through CTLx=000 (TPS2540) or DSC (TPS2541) Input
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Available in 16-Pin QFN Package
TPS2540和TPS2541应用:
USB ...