ENx = Active Low for the TPS2560

ENx = Active High for the TPS2561-Q1

TPS2561-Q1

DRC PACKAGE

(TOP VIEW)

PAD

1

2

3

4

EN1

GND

IN

EN2 5

IN

9

6

OUT1

FAULT2

ILIM

7

8

OUT2

10

FAULT1

OUT1

OUT2

IN

IN

GND

FAULT1

ILIM

EN2

100 kΩ

Control Signal

2.5 V – 6.5 V

VOUT1

TPS2561-Q1

0.1 F

μ

Fault Signal

PowerPAD

VOUT2

EN1

Control Signal

FAULT2

Fault Signal

TPS2561-Q1

www.ti.com

SLVSB51A – DECEMBER 2011 – REVISED AUGUST 2012

DUAL CHANNEL PRECISION ADJUSTABLE CURRENT-LIMITED POWER SWITCH

Check for Samples: TPS2561-Q1

1

FEATURES

DESCRIPTION

The TPS2561-Q1 is a dual-channel power-distribution

2

•

Qualified for Automotive Applications

switch intended for applications where precision

•

Two Separate Current Limiting Channels

current limiting is required or heavy capacitive loads

•

Meets USB Current-Limiting Requirements

and short circuits are encountered. These devices

offer a programmable current-limit threshold between

•

Adjustable Current Limit, 250 mA–2.8 A (typ)

250 mA and 2.8 A (typ) per channel through an

•

± 7.5% Current-Limit Accuracy at 2.8 A

external resistor. The power-switch rise and fall times

•

Fast Overcurrent Response - 3.5-

μS (typ)

are controlled to minimize current surges during turn

on or off.

•

Two 44-m

Ω High-Side MOSFETs

•

Operating Range: 2.5 V to 6.5 V

Each channel of the TPS2561-Q1 device limits the

output current to a safe level by switching into a

•

2-

μA Maximum Standby Supply Current

constant-current mode when the output load exceeds

•

Built-in Soft-Start

the current-limit threshold. The FAULTx logic output

•

15 kV or 8 kV System-Level ESD Capable

for each channel independently asserts low during

overcurrent and over temperature conditions.

•

UL Listed – File No. E169910

•

CB and Nemko Certified

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 © 2011–2012, 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.