1

FEATURES

DESCRIPTION

APPLICATIONS

1

2

3

4

5

6

OUT

FAULT

ILIM

EN

GND

IN

PAD

1

2

3

4

5

6

OUT

FAULT

ILIM

EN

GND

IN

TIPS2552/TPS2553

DBVPACKAGE

(TOP VIEW)

EN = ActiveLowfortheTPS2552

EN= ActiveHighfortheTPS2553

Add-1topartnumberforlach-offversion

OUT

IN

GND

FAULT

ILIM

EN

R

ILIM

20kW

R

FAULT

100kW

ControlSignal

5VUSB

Input

USB

Port

USBData

TPS2552/53

0.1 F

m

120 F

m

Fault Signal

PowerPad

USBrequirementonly*

*

facingportsarebypassedwithatleast

120 Fperhub

m

USBrequirementthatdownstream

TIPS2552/TPS2553

DRVPACKAGE

(TOP VIEW)

TPS2552

TPS2553, TPS2552-1, TPS2553-1

PRECISION ADJUSTABLE CURRENT-LIMITED POWER-DISTRIBUTION SWITCHES

2

• ±6% Current-Limit Accuracy at 1.3 A

• Meets USB Current-Limiting Requirements

The

TPS2552/53

and

TPS2552-1/53-1

power-distribution

switches

are

intended

for

• Backwards Compatible with TPS2550/51

applications

where

precision

current

limiting

is

• Adjustable Current Limit, 75 mA–1300 mA (typ)

required or heavy capacitive loads and short circuits

• Constant-Current (TPS2552/53) and Latch-off

are

encountered.

These

devices

offer

a

(TPS2552-1/53-1) Versions

programmable current-limit threshold between 75 mA

and 1.3 A (typ) via an external resistor. Current-limit

• Fast Overcurrent Response - 2-µS (typ)

accuracy as tight as +/-6% can be achieved at the

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

higher current-limit settings. The power-switch rise

• Reverse Input-Output Voltage Protection

and fall times are controlled to minimize current

surges during turn on/off.

• Operating Range: 2.5 V to 6.5 V

• 1-µA Maximum Standby Supply Current

TPS2552/53 devices limit the output current to a safe

level by switching into a constant-current mode when

• Built-in Soft-Start

the output load exceeds the current-limit threshold.

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

TPS2552-1/53-1

devices

provide

circuit

breaker

External Capacitance)

functionality by latching off the power switch during

overcurrent or reverse-voltage situations. An internal

reverse-voltage detection comparator disables the

power-switch in the event that the output voltage is

• USB Ports/Hubs

driven higher than the input to protect devices on the

• Digital TV

input side of the switch. The FAULT logic output

• Set-Top Boxes

asserts low during overcurrent and reverse-voltage

• Mobile Phones

conditions.

• VOIP Phones

Figure 1. Typical Application as USB Power Switch

1

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2

PowerPAD is a trademark of Texas Instruments.

PRODUCTION DATA information is current as of publication date.

Copyright © 2008, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.