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
– D+/D– 1.2-V Mode
• Supports Sleep-Mode Charging and
Mouse/Keyboard Wakeup
• Automatic SDP/CDP Switching for Devices That
Do Not Connect to CDP Ports
• 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 (Typical) 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
– 270 μA When Device Enabled
• Drop-In and BOM Compatible With TPS2543
• Available in 16-Pin WQFN (3.00 mm × 3.00 mm)
Package
• 8-kV ESD Rating on DM/DP Pins
• UL Listed File No. E169910 and CB certified

2 Applications
• USB Ports (Host and Hubs)
• Notebook and Desktop PCs
• Universal Wall-Charging Adapters

3 Description
The TPS2546 is a USB charging port controller and
power switch with an integrated USB 2.0 high-speed
data line (D+/D–) switch. TPS2546 provides the
electrical signatures on D+/D– to support charging
schemes listed under Feature Description. TI tests
charging of popular mobile phones, tablets, and
media devices with the TPS2546 to ensure
compatibility with both BC1.2 compliant, and non-
BC1.2 compliant devices.
In addition to charging popular devices, the TPS2546
also supports two distinct power management
features, namely, power wake and port power
management (PPM) through 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 application. Additionally, system wake up
(from S3) with a mouse/keyboard (both low speed
and full speed) is fully supported in the TPS2546.
The TPS2546 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.