Product details


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  • Qualified for Automotive Application
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C5
  • D+/D– CDP/DCP Modes per USB Battery Charging Specification 1.2
  • D+/D– Shorted Mode per Chinese Telecommunication Industry Standard YD/T 1591-2009
  • Supports non-BC1.2 Charging Modes by Automatic Selection
    • D+/D– Divider Modes 2V/2.7V and 2.7/2V
  • Supports Sleep-Mode Charging and Low Speed Mouse/Keyboard Wake Up
  • Load Detection for Power Supply Control in S4/S5 Charging and Port Power Management in all Charge Modes
  • Compatible with USB 2.0 and 3.0 Power Switch requirements
  • Integrated 73-mΩ (typ) High-Side MOSFET
  • Adjustable Current-Limit up to 3 A (Typical)
  • Operating Range: 4.5 V to 5.5 V
  • Max Device Current
    • 2 µA When Device Disabled
    • 260 µA When Device Enabled
  • Drop-In and BOM Compatible with TPS2543
  • Available in 16-Pin QFN (3x3) Package
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The TPS2543-Q1 is a USB charging port controller and power switch with an integrated USB 2.0 high-speed data line (D+/D–) switch. TPS2543-Q1 provides the electrical signatures on D+/D– lines to support charging schemes listed under device feature section. TI tests charging of popular mobile phones, tablets and media devices with the TPS2543-Q1 to ensure compatibility with both BC1.2 compliant and non-BC1.2 compliant devices.

In addition to charging popular devices, the TPS2543-Q1 also supports two distinct power management features, namely, power wake and port power management (PPM) via the STATUS pin. Power wake allows for power supply control in S4/S5 charging and PPM the ability to manage port power in a multi-port applications. Additionally, system wake up (from S3) with a mouse/keyboard (low speed only) is also supported in the TPS2543-Q1.

The TPS2543-Q1 73-mΩ power-distribution switch is intended for applications where heavy capacitive loads and short-circuits are likely to be encountered. Two programmable current thresholds provide flexibility for setting current limits and load detect thresholds.

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Technical documentation

= Top documentation for this product selected by TI
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Type Title Date
* Datasheet USB Charging Port Controller and Power Switch with Load Detection datasheet (Rev. A) Oct. 24, 2016
Application note Effective System ESD Protection for TPS254x USB Charging Port Controllers Jun. 03, 2016

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

The Texas Instruments TPS2543EVM-064 evaluation module (EVM) helps designers evaluate the performance of the TPS2543 USB Charging Port Power Switch and Controller. The EVM contains input and output connectors. Jumper controls are also provided to ease evaluation of device features.
  • Adjustable, current-limited power distribution switches with charging detection
  • Screw jack type input and output connectors
  • Jumper for device enable input

Design tools & simulation

SLVM547.ZIP (44 KB) - PSpice Model

Reference designs

Automotive Single-port USB Charging featuring LM43603 and TPS2543 Reference Design
PMP9080 Compact design for automotive single-port USB charging featuring the new synchronous 36V, 3A LM43603 SIMPLE SWITCHER and the TPS2543 USB Switch and Controller. LM2904 is used to provide cable droop compensation.
document-generic Schematic

CAD/CAE symbols

Package Pins Download
WQFN (RTE) 16 View options

Ordering & quality

Information included:
  • RoHS
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

Support & training

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