TPS2540 USB Charging Port Power Switch & Controller for Charging Host Ports & Dedicated Charging Ports

TPS2540 Status:   ACTIVE

USB Charging Port Power Switch & Controller for Charging Host Ports & Dedicated Charging Ports

Diagrams

Functional Diagram

Description

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.

View full Description in Datasheet

Features

Meets Battery Charging Specification BC1.2 (draft) for DCP and CDP

Meets Chinese Telecommunications Industry Standard YD/T 1591-2009

Supports Sleep-Mode Charging for Most Available Apple Devices and/or BC1.2 (draft) Compliant Devices

Compatible With USB 2.0 and 3.0 Power Switch Requirements

2.6-GHz Bandwidth USB 2.0 Data Switch

73-m (typ.) High-Side MOSFET

Adjustable Current Limit up to 2.8 A (typical)

OUT Discharge Through CTLx=000 (TPS2540) or DSC (TPS2541) Input

Available in 16-Pin QFN Package

APPLICATIONS

• USB Ports/Hubs
• Notebook PCs
• Universal Wall Charging Adapter

Apple®: Is a trademark of Apple Inc. iPod®: Is a trademark of Apple Inc. iPhone®: Is a trademark of Apple Inc.

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