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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