TPS2543 Datasheet, PDF (1/34 Pages) Texas Instruments – USB Charging Port Controller and Power Switch with Load Detection

TPS2543
www.ti.com
SLVSBA6 – FEBRUARY 2012
USB Charging Port Controller and Power Switch with Load Detection
Check for Samples: TPS2543
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
• D+/D– Divider Modes 2.0V/2.7V and 2.7/2.0V
Compliant with 1A and 2A Apple Mobile Digital
Devices
• Automatic Selection of D+/D– Mode for an
Attached Device
• 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
• 73-mΩ (typ) High-Side MOSFET
• Adjustable Current-Limit up to 3.0 A (typ)
• Operating Range: 4.5 V to 5.5 V
• Drop-In Compatible with TPS2540/40A
• Available in 16-Pin QFN (3x3) Package
• UL Listed and CB File No. E169910
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. The TPS2543 provides the
electrical signatures on D+/D– to support the
following charging schemes:
• USB Battery Charging Specification 1.2;
• Chinese Telecom Standard YD/T 1591-2009;
• Divider Mode, Compliant with Apple iPod, iPhone
(1A), and iPad (2A) Mobile Digital Devices.⁽¹⁾
The TPS2543 can be configured to automatically
select the D+/D– mode needed to charge an attached
device. The TPS2543 provides load detection via the
STATUS pin that allows for both power supply control
in S4/S5 charging and the ability to manage port
power in a multi-port application. Additionally, system
wake up (from S3) with a mouse/keyboard (low
speed only) is fully supported in the TPS2343.
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.
APPLICATIONS
• USB Ports (Host and Hubs)
• Notebook Desktop PCs
• Universal Wall Charging Adapters
(1) Apple, iPod, iPhone, and iPad are trademarks of Apple Inc.,
registered in the U.S. and other countries.
TPS2543 RTE PACKAGE AND TYPICAL APPLICATION DIAGRAM
16 15 14 13
IN 1
DM_OUT 2
DP_OUT ³
ILIM_SEL ⁴
Thermal Pad
12 OUT
11 DM_IN
10 DP_IN
9 STATUS
To Portable Device à
Power Bus ^{4.5V – 5.5V}
0.1 uF
IN
OUT
RSTATUS
(10 kW)
RFAULT
(10 kW)
TPS2543
ILIM_LO
ILIM_HI
STATUS Signal
STATUS
RILIM_HI
CUSB
RILIM_LO
VBUS
D-
D+
GND
Fault Signal
FAULT
GND
ILIM Select
Power Switch EN
Mode Select I/O
ILIM_SEL
EN
CTL1
CTL2
CTL3
DM_IN
DP_IN
DM_OUT
DP_OUT
USB
Connector
To Host Controller à
5678
1
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2012, Texas Instruments Incorporated