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Port Controller. TPS2549 Datasheet

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Port Controller. TPS2549 Datasheet






TPS2549 Controller. Datasheet pdf. Equivalent




TPS2549 Controller. Datasheet pdf. Equivalent





Part

TPS2549

Description

USB Charging Port Controller



Feature


Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS2549 SLUSCP2 – SEPTEMBE R 2016 TPS2549 USB Charging Port Contro ller and Power Switch With Cable Compen sation 1 Features •1 4.5-V to 6.5-V Operating Range • 47-mΩ (typical) Hi gh-Side MOSFET • 3-A Maximum Continuo us Output Current • ±5% CS Output fo r Cable Compensation • CDP Mod.
Manufacture

Texas Instruments

Datasheet
Download TPS2549 Datasheet


Texas Instruments TPS2549

TPS2549; e per USB Battery Charging Specification 1.2 • Automatic DCP Modes Selection: – Shorted Mode per BC1.2 and YD/T 15 91-2009 – 2.7-V Divider 3 Mode – 1. 2-V Mode • D+ and D– Client Mode fo r System Update • D+ and D– Short-t o-VBUS Protection • D+ and D– ±8-k V Contact and ±15-kV Air Discharge ESD Rating (IEC 61000-4-2) • UL Recognit ion and CB Certification Pending • –40°C t.


Texas Instruments TPS2549

o 125°C Junction Operating Temperature • 16-Pin QFN (3-mm × 3-mm) Package 2 Applications • USB Ports (Host and H ubs) • Wall Charging Adapters • Aft ermarket Automotive Chargers 3 Descript ion The TPS2549 device is a USB chargin g port controller and power switch with a current-sense output that is able to control an upstream supply. This allow s it to maintain 5 V at the .


Texas Instruments TPS2549

USB port even with heavy heavy charging currents. This is important in systems with long USB cables where significant voltage drops can occur while fast-cha rging portable devices. The TP2549 47-m Ω power switch has two selectable, pro grammable current limits that support p ort power management by providing a low er current limit that can be used when adjacent ports are .

Part

TPS2549

Description

USB Charging Port Controller



Feature


Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS2549 SLUSCP2 – SEPTEMBE R 2016 TPS2549 USB Charging Port Contro ller and Power Switch With Cable Compen sation 1 Features •1 4.5-V to 6.5-V Operating Range • 47-mΩ (typical) Hi gh-Side MOSFET • 3-A Maximum Continuo us Output Current • ±5% CS Output fo r Cable Compensation • CDP Mod.
Manufacture

Texas Instruments

Datasheet
Download TPS2549 Datasheet




 TPS2549
Product
Folder
Sample &
Buy
Technical
Documents
Tools &
Software
Support &
Community
TPS2549
SLUSCP2 – SEPTEMBER 2016
TPS2549 USB Charging Port Controller and Power Switch With Cable Compensation
1 Features
1 4.5-V to 6.5-V Operating Range
• 47-mΩ (typical) High-Side MOSFET
• 3-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)
• UL Recognition and CB Certification Pending
• –40°C to 125°C Junction Operating Temperature
• 16-Pin QFN (3-mm × 3-mm) Package
2 Applications
• USB Ports (Host and Hubs)
• Wall Charging Adapters
• Aftermarket Automotive Chargers
3 Description
The TPS2549 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
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 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 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 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
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
LM25117
TPS54340
FB
GND
R(FA)
R(FB)
R(G)
Simplified Schematic
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
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
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.




 TPS2549
TPS2549
SLUSCP2 – SEPTEMBER 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 Switching Characteristics .......................................... 8
6.7 Typical Characteristics .............................................. 8
7 Parameter Measurement Information ................ 14
8 Detailed Description ............................................ 15
8.1 Overview ................................................................. 15
8.2 Functional Block Diagram ....................................... 16
8.3 Feature Description................................................. 17
8.4 Device Functional Modes........................................ 24
9 Application and Implementation ........................ 28
9.1 Application Information............................................ 28
9.2 Typical Application ................................................. 28
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 ........................................................... 36
4 Revision History
DATE
September 2016
REVISION
*
NOTES
Initial release.
2
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Product Folder Links: TPS2549
Copyright © 2016, Texas Instruments Incorporated




 TPS2549
www.ti.com
5 Pin Configuration and Functions
RTE Package
16-Pin WQFN
Top View
TPS2549
SLUSCP2 – SEPTEMBER 2016
IN 1
DM_OUT 2
DP_OUT 3
CS 4
Thermal
Pad
12 OUT
11 DM_IN
10 DP_IN
9 STATUS
PIN
NAME
NO.
CS
4
CTL1
6
CTL2
7
CTL3
8
DM_IN
11
DM_OUT
2
DP_IN
10
DP_OUT
3
EN
5
FAULT
13
GND
14
ILIM_HI
16
ILIM_LO
15
IN
1
OUT
12
STATUS
9
Thermal pad
TYPE (1)
O
I
I
I
I/O
I/O
I/O
I/O
I
O
I
I
PWR
PWR
O
Pin Functions
DESCRIPTION
Provide sink current proportional to output current. For cable compensation, connect to the
feedback divider of the up-stream voltage regulator.
Logic-level control inputs for controlling the charging mode and the signal switches; (see
Table 2). These pins tie directly to IN or GND without a pullup or pulldown resistor.
D– data line to downstream connector
D– data line to upstream USB host controller
D+ data line to downstream connector
D+ data line to upstream USB host controller
Logic-level control input for turning the power switch and the signal switches on/off. When
EN is low, the device is disabled, the signal and power switches are OFF.
Active-low open-drain output, asserted during overtemperature, overcurrent, and DP_IN and
DM_IN overvoltage conditions. See Table 1.
Ground connection; should be connected externally to the thermal pad.
Connect external resistor to ground to set the high current-limit threshold.
Connect external resistor to ground to set the low current-limit threshold and the load-
detection current threshold.
Input supply voltage; connect a 0.1 µF or greater ceramic capacitor from IN to GND as close
to the IC as possible.
Power-switch output
Active-low open-drain output, asserted when the load exceeds the load-detection threshold
Thermal pad on bottom of package. The thermal pad is internally connected to GND and is
used to heat-sink the device to the circuit board. Connect the thermal pad to the GND plane.
(1) I = Input, O = Output, I/O = Input and output, PWR = Power
Copyright © 2016, Texas Instruments Incorporated
Product Folder Links: TPS2549
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