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TPS2546 Datasheet Preview

TPS2546 Datasheet

USB Charging Port Controller

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TPS2546
SLVSBJ2C – FEBRUARY 2013 – REVISED JULY 2016
TPS2546 USB Charging Port Controller and Power Switch With Load Detection
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.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS2546
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
To Portable Device à
Power Bus 4.5V – 5.5V
0.1 uF
IN
OUT
RSTATUS
(10 kW)
RFAULT
(10 kW)
TPS2546
ILIM_LO
ILIM_HI
STATUS Signal
Fault Signal
STATUS
FAULT
RILIM_HI
GND
CUSB
RILIM_LO
VBUS
D-
D+
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
Copyright © 2016, Texas Instruments Incorporated
1
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.




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TPS2546 Datasheet Preview

TPS2546 Datasheet

USB Charging Port Controller

No Preview Available !

TPS2546
SLVSBJ2C – FEBRUARY 2013 – REVISED JULY 2016
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 3
6 Specifications......................................................... 4
6.1 Absolute Maximum Ratings ...................................... 4
6.2 ESD Ratings.............................................................. 4
6.3 Recommended Operating Conditions....................... 4
6.4 Thermal Information .................................................. 5
6.5 Electrical Characteristics........................................... 5
6.6 Electrical Characteristics: High-Bandwidth Switch.... 6
6.7 Electrical Characteristics: Charging Controller ......... 7
6.8 Typical Characteristics .............................................. 9
7 Parameter Measurement Information ................ 13
8 Detailed Description ............................................ 14
8.1 Overview ................................................................. 14
8.2 Functional Block Diagram ....................................... 15
8.3 Feature Description................................................. 15
8.4 Device Functional Modes........................................ 26
9 Application and Implementation ........................ 29
9.1 Application Information............................................ 29
9.2 Typical Application .................................................. 30
10 Power Supply Recommendations ..................... 33
11 Layout................................................................... 33
11.1 Layout Guidelines ................................................. 33
11.2 Layout Example .................................................... 34
12 Device and Documentation Support ................. 35
12.1 Documentation Support ....................................... 35
12.2 Receiving Notification of Documentation Updates 35
12.3 Community Resources.......................................... 35
12.4 Trademarks ........................................................... 35
12.5 Electrostatic Discharge Caution ............................ 35
12.6 Glossary ................................................................ 35
13 Mechanical, Packaging, and Orderable
Information ........................................................... 35
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision B (January 2016) to Revision C
Page
• Corrected references to images in the Feature Description section .................................................................................... 15
• Added text to the Layout Guidelines section ........................................................................................................................ 34
Changes from Revision A (Febuary 2013) to Revision B
Page
• Added ESD Ratings table, Feature Description section, Device Functional Modes, Application and Implementation
section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and
Mechanical, Packaging, and Orderable Information section. ................................................................................................. 1
Changes from Original (February 2013) to Revision A
Page
• Changed the device From: Preview To: Production............................................................................................................... 1
2
Submit Documentation Feedback
Product Folder Links: TPS2546
Copyright © 2013–2016, Texas Instruments Incorporated


Part Number TPS2546
Description USB Charging Port Controller
Maker etcTI
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