OUT

GND

FAULT

ILIM_LO

EN

R

ILIM_LO

(10 kW)

Power Switch EN

4.5V – 5.5V

TPS2546-Q1

0.1 mF

Fault Signal

DM_IN

DP_IN

VBUS

D-

D+

GND

USB

Connector

To Portable Device

à

Power Bus

CTL1

CTL2

CTL3

ILIM_SEL

ILIM Select

DM_OUT

DP_OUT

To Host Controller

à

Mode Select I/O

IN

STATUS

STATUS Signal

R

ILIM_HI

ILIM_HI

(10 kW)

Copyright © 2016, Texas Instruments Incorporated

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An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

TPS2546-Q1

SLVSCA1B – OCTOBER 2013 – REVISED AUGUST 2016

TPS2546-Q1 USB-Charging Port Controller and Power Switch With Load Detection

1

1 Features

1

•

AEC-Q100 Qualified

–

Device HBM ESD Classification Level H2

–

Device CDM ESD Classification Level C5

•

Operating Range: 4.5 V to 5.5 V

•

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

•

I73-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

2 Applications

•

Automotive

•

USB Ports (Host and Hubs)

•

Notebook and Desktop PCs

•

Universal Wall-Charging Adapters

3 Description

The TPS2546-Q1 is a USB charging port controller

and power switch with an integrated USB 2.0 high-

speed

data

line

(D+/D–)

switch.

TPS2546-Q1

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-

Q1 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-Q1.

The TPS2546-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.

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

TPS2546-Q1

WQFN (16)

3.00 mm × 3.00 mm

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

Simplified Schematic