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TPS2549-Q1 Datasheet Preview

TPS2549-Q1 Datasheet

USB Charging Port Controller

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www.ti.com
TPS2549-Q1
SLUSCE3C – OCTOBER 2015 – REVISEDTPAUSG2U5S4T92-Q0210
SLUSCE3C – OCTOBER 2015 – REVISED AUGUST 2020
TPS2549-Q1 Automotive USB Charging Port Controller and Power Switch With
Cable Compensation
1 Features
• AEC-Q100 Qualified With the Following Results:
– Device HBM ESD Classification Level H2
– Device CDM ESD Classification Level C5
• 4.5-V to 6.5-V Operating Range
• 47-mΩ (typ.) High-Side MOSFET
• 3.2-A Maximum Continuous Output Current
• ±5% CS Output for Cable Compensation
• CDP Mode per USB Battery Charging
Specification 1.2
• Automatic DCP Modes Selection:
– Shorted Mode per BC1.2 and YD/T 1591-2009
– 2.7-V Divider 3 Mode
– 1.2-V Mode
• D+ and D– Client Mode for System Update
• D+ and D– Short-to-VBUS Protection
• D+ and D– ±8-kV Contact and ±15-kV Air
Discharge ESD Rating (IEC 61000-4-2)
• –40°C to 125°C Junction Operating Temperature
• 16-Pin QFN (3-mm × 3-mm) Package
2 Applications
• Automotive USB Ports (Host and Hubs)
• Automotive Infotainment System
3 Description
The TPS2549-Q1 device is a USB charging port
controller and power switch with a current-sense
output that is able to control an upstream supply. This
allows it to maintain 5 V at the USB port even with
heavy charging currents. This is important in systems
with long USB cables where significant voltage drops
can occur while fast-charging portable devices.
The TP2549-Q1 47-mΩ power switch has two
selectable, programmable current limits that support
port power management by providing a lower current
limit that can be used when adjacent ports are
experiencing heavy loads. This is important in
systems with multiple ports and an upstream supply
unable to provide full current to all ports
simultaneously.
The DCP_Auto scheme detects and selects the
proper D+ and D– settings to communicate with the
attached device, so that it can fast-charge at full
current. The integrated CDP detection enables up to
1.5-A fast charging of most portable devices with
simultaneous data communication.
The unique client-mode feature allows software
updates to client devices, but avoids power conflicts
by turning off the internal power switch while keeping
the data line connection.
Additionally, the TPS2549-Q1 device integrates short-
to-VBUS protection for D+ and D– to prevent damage
when D+ and/or D– unexpectedly short to VBUS. To
save space in the application, the TPS2549-Q1
device also integrates ESD protection to pass
IEC61000-4-2 without external circuitry on D+ and D–.
Device Information (1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS2549-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.
V(BAT)
5V
Voltage
Regulator
LMR14030
LM53603-Q1
LM25117-Q1
TPS54340-Q1
FB
GND
R(FA)
R(FB)
R(G)
4.5 V to 6.5 V
0.1 µF
C(COMP)
R(FAULT)
R(STATUS)
FAULT
STATUS
Power S witch EN
Mode Select I/O
IN
OUT
TPS2549-Q1
FAULT
STATUS
CS
EN
CTL1
CTL2
CTL3
DM_IN
DP_IN
GND
ILIM_LO
ILIM_HI
DM_OUT
DP_OUT
C(OUT)
R(CABLE1)
R(CABLE2)
To Host R_HI
Controller
R_LO
Simplified Schematic
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
Copyrighint t©el2le0c2t0uTael xparsoIpnesrtrtuymmeanttsteIrnscoarnpdoraottehder important disclaimers. PRODUCTION DATA.
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etcTI

TPS2549-Q1 Datasheet Preview

TPS2549-Q1 Datasheet

USB Charging Port Controller

No Preview Available !

TPS2549-Q1
SLUSCE3C – OCTOBER 2015 – REVISED AUGUST 2020
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 Switching Characteristics............................................8
6.7 Typical Characteristics................................................ 9
7 Parameter Measurement Information.......................... 15
8 Detailed Description......................................................16
8.1 Overview................................................................... 16
8.2 Functional Block Diagram......................................... 17
8.3 Feature Description...................................................17
8.4 Device Functional Modes..........................................25
9 Application and Implementation.................................. 29
9.1 Application Information............................................. 29
9.2 Typical Application.................................................... 29
9.3 Application Curves.................................................... 33
10 Power Supply Recommendations..............................34
11 Layout........................................................................... 34
11.1 Layout Guidelines................................................... 34
11.2 Layout Example...................................................... 35
12 Device and Documentation Support..........................36
12.1 Documentation Support.......................................... 36
12.2 Receiving Notification of Documentation Updates..36
12.3 Support Resources................................................. 36
12.4 Trademarks............................................................. 36
12.5 Electrostatic Discharge Caution..............................36
12.6 Glossary..................................................................36
13 Mechanical, Packaging, and Orderable
Information.................................................................... 36
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision B (July 2016) to Revision C (August 2020)
Page
• Updated the numbering format for tables, figures and cross-references throughout the document...................1
• Added Note (2) to Absolute Maximum Ratings table..........................................................................................4
• Added Footnote to Recommended Operating Conditions table......................................................................... 4
• Added paragraph to Typical Application section for clarification.......................................................................29
Changes from Revision A (October 2015) to Revision B (July 2016)
Page
• Changed maximum outlput current to 3.2 A....................................................................................................... 1
• Changed maximum output current in Recommended Operating Conditions .................................................... 4
• Changed minimum current-set resistance in Recommended Operating Conditions ......................................... 4
• Added a row to the CURRENT LIMIT section in Electrical Characteristics ....................................................... 5
• Added a row to the CABLE COMPENSATION section of Electircal Characteristics ......................................... 5
• Added Receiving Notification of Documentation Updates section....................................................................36
Changes from Revision * (October 2015) to Revision A (October 2015)
Page
• Device status changed from PRE_PROD to PRODUCTION............................................................................. 1
2
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Copyright © 2020 Texas Instruments Incorporated


Part Number TPS2549-Q1
Description USB Charging Port Controller
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