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TPS2553-1 Datasheet Preview

TPS2553-1 Datasheet

Precision Adjustable Current-Limited Power-Distribution Switches

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TPS2552, TPS2553, TPS2552-1, TPS2553-1

SLVS841F – NOVEMBER 2008 – REVISED AUGUST 2016

TPS255xx Precision Adjustable Current-Limited Power-Distribution Switches

1 Features

•1 Up to 1.5-A Maximum Load Current

• ±6% Current-Limit Accuracy at 1.7 A (Typical)

• Meets USB Current-Limiting Requirements

• Backwards Compatible With TPS2550 and

TPS2551

• Adjustable Current Limit: 75 mA to 1700 mA

(Typical)

• Constant-Current (TPS255x) and Latch-Off

(TPS255x-1) Versions

• Fast Overcurrent Response - 2 µs (Typical)

• 85-mΩ High-Side MOSFET (DBV Package)

• Reverse Input-Output Voltage Protection

• Operating Range: 2.5 V to 6.5 V

• Built-In Soft Start

• 15-kV ESD Protection per IEC 61000-4-2 (With

External Capacitance)

• UL Listed – File No. E169910 and NEMKO

IEC60950-1-am1 ed2.0

• See the TI Switch Portfolio

3 Description

The TPS255x and TPS255x-1 power-distribution

switches are intended for applications where

precision current limiting is required or heavy

capacitive loads and short circuits are encountered

and provide up to 1.5 A of continuous load current.

These devices offer a programmable current-limit

threshold between 75 mA and 1.7 A (typical) through

an external resistor. Current-limit accuracy as tight as

±6% can be achieved at the higher current-limit

settings. 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 using a constant-current mode when the

output load exceeds the current-limit threshold.

TPS255x-1 devices provide circuit breaker

functionality by latching off the power switch during

overcurrent or reverse-voltage situations. An internal

reverse-voltage comparator disables the power-

switch when the output voltage is driven higher than

the input to protect devices on the input side of the

switch. The FAULT output asserts low during

overcurrent and reverse-voltage conditions.

2 Applications

• USB Ports and Hubs

• Digital TVs

• Set-Top Boxes

• VOIP Phones

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

TPS2552

SOT-23 (6)

WSON (6)

2.90 mm x 1.60 mm

2.00 mm x 2.00 mm

TPS2553

SOT-23 (6)

WSON (6)

2.90 mm x 1.60 mm

2.00 mm x 2.00 mm

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

5V USB

Input

RFAULT

100 kW

Fault Signal

Control Signal

Typical Application

TPS2552/53

0.1 mF

OUT

USB Data

USB

Port

FAULT

ILIM

GND

Power Pad

120 mF

RILIM

20 kW

USB requirement only*

*USB requirement that downstream

facing ports are bypassed with at least

120 mF per hub

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.

etcTI

TPS2553-1 Datasheet Preview

TPS2553-1 Datasheet

Precision Adjustable Current-Limited Power-Distribution Switches

No Preview Available !

TPS2552, TPS2553, TPS2552-1, TPS2553-1

SLVS841F – NOVEMBER 2008 – REVISED AUGUST 2016

www.ti.com

Table of Contents

1 Features .................................................................. 1

2 Applications ........................................................... 1

3 Description ............................................................. 1

4 Revision History..................................................... 2

5 Device Comparison Table..................................... 4

6 Pin Configuration and Functions ......................... 5

7 Specifications......................................................... 5

7.1 Absolute Maximum Ratings ...................................... 5

7.2 ESD Ratings ............................................................ 6

7.3 Recommended Operating Conditions....................... 6

7.4 Thermal Information .................................................. 6

7.5 Electrical Characteristics........................................... 7

7.6 Typical Characteristics .............................................. 8

8 Parameter Measurement Information ................ 11

9 Detailed Description ............................................ 13

9.1 Overview ................................................................. 13

9.2 Functional Block Diagram ....................................... 13

9.3 Feature Description................................................. 13

9.4 Device Functional Modes........................................ 15

9.5 Programming........................................................... 15

10 Application and Implementation........................ 17

10.1 Application Information.......................................... 17

10.2 Typical Applications .............................................. 17

11 Power Supply Recommendations ..................... 24

11.1 Self-Powered and Bus-Powered Hubs ................. 24

11.2 Low-Power Bus-Powered and High-Power Bus-

Powered Functions .................................................. 24

11.3 Power Dissipation and Junction Temperature ...... 24

12 Layout................................................................... 25

12.1 Layout Guidelines ................................................. 25

12.2 Layout Example .................................................... 25

13 Device and Documentation Support ................. 26

13.1 Device Support...................................................... 26

13.2 Related Links ........................................................ 26

13.3 Receiving Notification of Documentation Updates 26

13.4 Community Resources.......................................... 26

13.5 Trademarks ........................................................... 26

13.6 Electrostatic Discharge Caution ............................ 26

13.7 Glossary ................................................................ 26

14 Mechanical, Packaging, and Orderable

Information ........................................................... 26

4 Revision History

NOTE: Page numbers for previous revisions may differ from page numbers in the current version.

Changes from Revision E (February 2012) to Revision F

Page

• Added ESD Rating 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

• Changed 1300 mA to 1700 mA in the adjustable current limit bullet under the Features section ......................................... 1

• Changed from 1.2 A to 1.5 A.................................................................................................................................................. 4

Changes from Revision D (June 2011) to Revision E

Page

• Changed VEN to VEN in Recommended Operating Conditions ............................................................................................... 6

Changes from Revision C (September 2009) to Revision D

Page

• Changed From: Fast Overcurrent Response - 2-µS (typ) To: Fast Overcurrent Response - 2-µs (typ) in the Features ...... 1

• Added text To Feature - UL Listed "and NEMKO IEC60950-1-am1 ed2.0"........................................................................... 1

• Added Features Item "See the TI Switch Portfoilo"................................................................................................................ 1

• Changed the DEVICE INFORMATION table, and Deleted Note 3 ........................................................................................ 1

• Added ESD-system level (contact/air) to the ABS MAX table, and Added Note 3 ................................................................ 6

• Added text to the REVERSE-VOLTAGE PROTECTION section: "A reverse.....when this occurs.".................................... 14

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TPS2553-1 Datasheet

Precision Adjustable Current-Limited Power-Distribution Switches

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Precision Adjustable Current-Limited Power-Distribution Switches

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