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Automotive USB charging port power switch & controller

TPS2543-Q1 is not recommended for new designs
This product continues to be available for existing customers. New designs should consider an alternate product.
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Same functionality with different pin-out to the compared device
TPS2549-Q1 ACTIVE Automotive USB Charge port controller with droop compensation Similar functionality and package. Added current compensation feature.

Product details

Rating Automotive Operating temperature range (°C) -40 to 125
Rating Automotive Operating temperature range (°C) -40 to 125
WQFN (RTE) 16 9 mm² 3 x 3
  • 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
  • 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

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.

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

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* Data sheet USB Charging Port Controller and Power Switch with Load Detection datasheet (Rev. A) PDF | HTML 24 Oct 2016

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