For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.

For small orders, phone 1-800-835-8769.

General Description

The MAX1607 is a current-limited 60m

Ω switch with

built-in fault blanking. Its accurate, preset 0.7A to 1.0A

current limit makes it ideal for USB applications. Its low

quiescent supply current (14µA) and standby current

(1µA) conserve battery power in portable applications.

The MAX1607 operates with inputs from +2.7V to

+5.5V, making it ideal for both 3V and 5V systems.

An overcurrent signal (OC) notifies the microprocessor

that the internal current limit has been reached. A 10ms

overcurrent-blanking feature allows momentary faults

(such as those caused when hot-swapping into a

capacitive load) to be ignored, thus preventing false

alarms to the host system. This blanking also prevents

an OC signal from being issued when the device is

powering up.

The MAX1607 has several safety features to ensure that

the USB port is protected. Built-in thermal-overload pro-

tection limits power dissipation and junction tempera-

ture. The device also has accurate internal current-

limiting circuitry to protect the input supply against

overload.

The MAX1607 is a pin-compatible upgrade to Texas

Instruments’ TPS2014, TPS2015, and TPS2041 for USB

applications. The same die is available in a space-saving

10-pin µMAX package (MAX1693) and can be used for

next-generation designs. The MAX1694 is similar to the

MAX1693, but it has a built-in latch that turns off the

power switch in case of a long-term short-circuit condi-

tion.

Applications

Notebook Computers

USB Ports

USB Hubs

Docking Stations

Features

o Pin Compatible with TPS2014, TPS2015, and

TPS2041

o Accurate Current Limit (0.7A min, 1.0A max)

o Guaranteed 0.75A Short-Circuit Protection

o 10ms Internal OC Blanking Timeout

o No Overcurrent (OC) Signal During Power-Up

o 125m

Ω max High-Side MOSFET

o 500mA Continuous Current

o Short-Circuit and Thermal Protection with

Overcurrent Logic Output

o 1ms Start-Up Time

o Undervoltage Lockout

o 14µA Quiescent Supply Current

o 1µA max Standby Supply Current

o +2.7V to +5.5V Supply Range

o UL Recognition Pending

USB Current-Limited Switch

in Pin-Compatible Package

________________________________________________________________

Maxim Integrated Products

1

OUT

1

2

8

7

OUT

OUT

IN

IN

GND

SO

TOP VIEW

3

4

6

5

MAX1607

OC

EN

MAX1607

IN

OUTPUT

OUT

INPUT

+2.7V TO +5.5V

ON

OFF

GND

OC

EN

Typical Operating Circuit

19-1544; Rev 0; 10/99

PART

MAX1607ESA

-40°C to +85°C

TEMP. RANGE

PIN-PACKAGE

8 SO

Pin Configuration

Ordering Information