1 Features

1• 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 2 V / 2.7 V

and 2.7 V / 2 V

• Supports Sleep-Mode Charging and

Mouse/Keyboard (Low-Speed Only) Wake Up

• Load Detection for Both 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 (Typical) High-Side MOSFET

• Adjustable Current-Limit up to 3 A (Typical)

• Operating Range: 4.5 V to 5.5 V

• Drop-In Compatible with TPS2540/40A

• Max Device Current:

– 2 μA When Device Disabled

– 260 μA When Device Enabled

• Available in 16-Pin QFN (3 x 3) Package

• UL Listed and CB File No. E169910

2 Applications

• USB Ports (Host and Hubs)

• Notebook Desktop PCs

• Universal Wall Charging Adapters

3 Description

The TPS2543 is a USB charging port controller and

power switch with an integrated USB 2.0 high-speed

data line (D+/D–) switch. TPS2543 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 to ensure

compatibility with both BC1.2 compliant and non-

BC1.2 compliant devices.

In addition to charging popular devices, the TPS2543

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.

The TPS2543 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.