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USB Charging Port Controller and Load Detection Power Switch

2015-08-0012

PT0513-3

8/31/15

1

PI5USB2544A, PI5USB2546A

Features

 Two separate current limiting channels

 Supports CDP/DCP Modes per USB Battery Charging

Specification 1.2

 Supports Shorted Mode per Chinese Telecommunication

Industry Standard YD/T1591-2009

 Supports non-BC1.2 Charging Modes by Automatic

Selection



Divider-1A mode



Divider-2A mode



Divider-2.4A mode



DCP-1.2V mode

 Supports Sleep-Mode Charging and Mouse/Keyboard

Wake up

 Automatic SDP/CDP Switching for Devices that do not

request for the CDP Ports

 Load Detection for Power Supply Control in S4/S5

Charging and Port Power Management in all Charge

Modes

 Compatible with USB 2.0/3.0 Power Switch requirements

 Integrated 73-mΩ (Typ.) High-Side MOSFET

 Adjustable Current-Limit up to 3A(Typ.)

 Operating Range:4.5V to 5.5V

 Max Device Current



2μA at Device Disabled



270μA at Device Enabled

Device Package: TQFN 3.0x3.0-16L

Description

The PI5USB2544A/2546A series is a USB charging port

controller and power switch with an integrated USB 2.0 high-

speed data line (D+/D–) switch. PI5USB2544A/2546A

provides the electrical signatures on D+/D– to support

charging schemes listed under device feature section. This

series is compatible with both popular BC1.2 compliant and

non-BC1.2 compliant devices.

System wake up (from S3) with a mouse/keyboard (both low

speed

and

full

speed)

is

fully

supported

in

the

PI5USB2544A/2546A.

Additionally,

PI5USB2546A

supports two distinct power management features, namely,

power wake and port power management (PPM) through

/STATUS pin. Power wake allows for power supply control

in S4/S5 charging and PPM manages port power in a multi-

port application.

The PI5USB2544A/2546A series 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

Applications

USB Ports (Host and Hubs)

Notebook and Desktop PCs

Universal Wall Charging Adapters

Pin Configuration (TQFN-16L, ZH)

PI5USB2544A

PI5USB2546A