DatasheetsPDF.com

Power-Distribution Switches. TPS2556 Datasheet

DatasheetsPDF.com

Power-Distribution Switches. TPS2556 Datasheet






TPS2556 Switches. Datasheet pdf. Equivalent




TPS2556 Switches. Datasheet pdf. Equivalent





Part

TPS2556

Description

Precision Adjustable Current-Limited Power-Distribution Switches



Feature


Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS2556, TPS2557 SLVS931B NOVEMBER 2009 – REVISED DECEMBER 20 16 TPS255x Precision Adjustable Current -Limited Power-Distribution Switches 1 Features •1 Meets USB Current-Limiti ng Requirements • Adjustable Current Limit, 500 mA to 5 A (Typical) • ±6. 5% Current-Limit Accuracy at .
Manufacture

Texas Instruments

Datasheet
Download TPS2556 Datasheet


Texas Instruments TPS2556

TPS2556; 4.5 A • Fast Overcurrent Response: 3.5 -µs (Typical) • 22-mΩ High-Side MOS FET • Operating Voltage: 2.5 V to 6.5 V • 2-µA Maximum Standby Supply Cur rent • Built-in Soft Start • 15-kV and 8-kV System-Level ESD Capable • U L Listed: File No. E169910 and CB IEC60 950-1- am2 ed2.0 2 Applications • USB Ports and Hubs • Digital TVs • Set -Top Boxes • VOIP Phones 3 Description T.


Texas Instruments TPS2556

he TPS255x power-distribution switch is intended for applications where precisi on current limiting is required or heav y capacitive loads and short circuits a re encountered. These devices offer a p rogrammable current-limit threshold bet ween 500 mA and 5 A (typical) through a n external resistor. The power-switch r ise and fall times are controlled to mi nimize current sur.


Texas Instruments TPS2556

ges during turnon and turnoff. TPS255x d evices limit the output current to a sa fe level by switching into a constant-c urrent mode when the output load exceed s the current-limit threshold. The FAUL T logic output asserts low during overc urrent and overtemperature conditions. Device Information(1) PART NUMBER PA CKAGE BODY SIZE (NOM) TPS2556, TPS255 7 VSON (8) 3.00 m.

Part

TPS2556

Description

Precision Adjustable Current-Limited Power-Distribution Switches



Feature


Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS2556, TPS2557 SLVS931B NOVEMBER 2009 – REVISED DECEMBER 20 16 TPS255x Precision Adjustable Current -Limited Power-Distribution Switches 1 Features •1 Meets USB Current-Limiti ng Requirements • Adjustable Current Limit, 500 mA to 5 A (Typical) • ±6. 5% Current-Limit Accuracy at .
Manufacture

Texas Instruments

Datasheet
Download TPS2556 Datasheet




 TPS2556
Product
Folder
Sample &
Buy
Technical
Documents
Tools &
Software
Support &
Community
TPS2556, TPS2557
SLVS931B – NOVEMBER 2009 – REVISED DECEMBER 2016
TPS255x Precision Adjustable Current-Limited Power-Distribution Switches
1 Features
1 Meets USB Current-Limiting Requirements
• Adjustable Current Limit, 500 mA to 5 A (Typical)
• ±6.5% Current-Limit Accuracy at 4.5 A
• Fast Overcurrent Response: 3.5-µs (Typical)
• 22-mΩ High-Side MOSFET
• Operating Voltage: 2.5 V to 6.5 V
• 2-µA Maximum Standby Supply Current
• Built-in Soft Start
• 15-kV and 8-kV System-Level ESD Capable
• UL Listed: File No. E169910 and CB IEC60950-1-
am2 ed2.0
2 Applications
• USB Ports and Hubs
• Digital TVs
• Set-Top Boxes
• VOIP Phones
3 Description
The TPS255x power-distribution switch is intended
for applications where precision current limiting is
required or heavy capacitive loads and short circuits
are encountered. These devices offer a
programmable current-limit threshold between
500 mA and 5 A (typical) through an external resistor.
The power-switch rise and fall times are controlled to
minimize current surges during turnon and turnoff.
TPS255x devices limit the output current to a safe
level by switching into a constant-current mode when
the output load exceeds the current-limit threshold.
The FAULT logic output asserts low during
overcurrent and overtemperature conditions.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS2556, TPS2557 VSON (8)
3.00 mm × 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Typical Application as USB Power Switch
2.5V 6.5V
R FAULT
100 kΩ
0.1 uF
IN
IN
Fault Signal
FAULT
OUT
OUT
R ILIM
ILIM
Control Signal
EN
GND
VOUT
CLOAD
Power Pad
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.




 TPS2556
TPS2556, TPS2557
SLVS931B – NOVEMBER 2009 – REVISED DECEMBER 2016
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Device Comparison Table..................................... 3
6 Pin Configuration and Functions ......................... 3
7 Specifications......................................................... 4
7.1 Absolute Maximum Ratings ...................................... 4
7.2 ESD Ratings.............................................................. 4
7.3 Recommended Operating Conditions....................... 4
7.4 Thermal Information .................................................. 5
7.5 Electrical Characteristics........................................... 5
7.6 Switching Characteristics .......................................... 6
7.7 Typical Characteristics .............................................. 7
8 Parameter Measurement Information ................ 10
9 Detailed Description ............................................ 11
9.1 Overview ................................................................. 11
9.2 Functional Block Diagram ....................................... 11
9.3 Feature Description................................................. 11
9.4 Device Functional Modes........................................ 12
10 Application and Implementation........................ 13
10.1 Application Information.......................................... 13
10.2 Typical Applications .............................................. 13
11 Power Supply Recommendations ..................... 18
12 Layout................................................................... 19
12.1 Layout Guidelines ................................................. 19
12.2 Layout Example .................................................... 19
12.3 Thermal Considerations ........................................ 20
13 Device and Documentation Support ................. 21
13.1 Related Links ........................................................ 21
13.2 Receiving Notification of Documentation Updates 21
13.3 Community Resources.......................................... 21
13.4 Trademarks ........................................................... 21
13.5 Electrostatic Discharge Caution ............................ 21
13.6 Glossary ................................................................ 21
14 Mechanical, Packaging, and Orderable
Information ........................................................... 21
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision A (Feburary 2012) to Revision B
Page
• Added Device Information table, Device Comparison Table, Pin Configuration and Functions section, Specifications
section, ESD Ratings table, Application and Implementation section, Power Supply Recommendations section,
Layout section, Device and Documentation Support section, and Mechanical, Packaging, and Orderable Information
section .................................................................................................................................................................................... 1
• Deleted Ordering Information table; see Package Option Addendum at the end of the data sheet ...................................... 1
• Added Thermal Information table ........................................................................................................................................... 5
• Changed RθJC(top) value in Thermal Information table From: 10.7°C/W To: 54.5°C/W ........................................................... 5
• Changed Figure 11 title From: Current Limit Threshold Vs RILM To: Switch Current vs Drain-Source Voltage Across
Switch ..................................................................................................................................................................................... 7
• Changed Figure 12 title From: Current Limit Threshold Vs RILM To: Switch Current vs Drain-Source Voltage Across
Switch ..................................................................................................................................................................................... 7
Changes from Original (November 2009) to Revision A
Page
• Changed VEN to VEN in Recommended Operating Conditions table ...................................................................................... 4
• Changed VEN to VEN in Recommended Operating Conditions table ...................................................................................... 4
2
Submit Documentation Feedback
Copyright © 2009–2016, Texas Instruments Incorporated
Product Folder Links: TPS2556 TPS2557




 TPS2556
www.ti.com
5 Device Comparison Table
33 mΩ, SINGLE
80 mΩ, SINGLE
80 mΩ, DUAL
TPS2556, TPS2557
SLVS931B – NOVEMBER 2009 – REVISED DECEMBER 2016
80 mΩ, DUAL
80 mΩ, TRIPLE
80 mΩ, QUAD
80 mΩ, QUAD
TPS201xA 0.2 A–2 A
TPS202x 0.2 A–2 A
TPS203x 0.2 A–2 A
TPS2014 600 mA
TPS2015 1 A
TPS2041B 500 mA
TPS2051B 500 mA
TPS2045A 250 mA
TPS2049 100 mA
TPS2055A 250 mA
TPS2061 1 A
TPS2065 1 A
TPS2068 1.5 A
TPS2069 1.5 A
TPS2042B 500 mA
TPS2052B 500 mA
TPS2046B 250 mA
TPS2056 250 mA
TPS2062 1 A
TPS2066 1 A
TPS2060 1.5 A
TPS2064 1.5 A
TPS2080
TPS2081
TPS2082
TPS2090
TPS2091
TPS2092
500 mA
500 mA
500 mA
250 mA
250 mA
250 mA
TPS2043B 500 mA
TPS2053B 500 mA
TPS2047B 250 mA
TPS2057A 250 mA
TPS2063 1 A
TPS2067 1 A
TPS2044B 500 mA
TPS2054B 500 mA
TPS2048A 250 mA
TPS2058 250 mA
TPS2085
TPS2086
TPS2087
TPS2095
TPS2096
TPS2097
500 mA
500 mA
500 mA
250 mA
250 mA
250 mA
6 Pin Configuration and Functions
DRB Package
8-Pin VSON
Top View
GND
IN
IN
EN
1
8
2
7
PowerPAD
3
6
4
5
FAULT
OUT
OUT
ILIM
TPS2556: EN pin is active low.
TPS2557: EN pin is active high.
NAME
EN
EN
FAULT
GND
ILIM
PIN
TPS2556
4
8
1
5
TPS2557
4
8
1
5
IN
2, 3
2, 3
OUT
6, 7
6, 7
PowerPAD™ PowerPAD PowerPAD
Not to scale
Pin Functions
I/O
DESCRIPTION
I
Enable input: Logic low turns on power switch. Applicable to the TPS2556.
I
Enable input: Logic high turns on power switch. Applicable to the TPS2557.
O
Active-low open-drain output: Asserted during overcurrent or overtemperature
conditions.
Ground connection: Connect externally to PowerPAD.
O
External resistor used to set current-limit threshold. TI recommends
20 kΩ RILIM 187 kΩ.
I
Input voltage: Connect a 0.1-µF or greater ceramic capacitor from IN to GND as
close to the IC as possible.
O
Power-switch output.
Internally connected to GND. Used to heat-sink the part to the circuit board
traces. Connect PowerPAD to GND pin externally.
Copyright © 2009–2016, Texas Instruments Incorporated
Product Folder Links: TPS2556 TPS2557
Submit Documentation Feedback
3



Recommended third-party TPS2556 Datasheet






@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site (Privacy Policy & Contact)