General Description

The MAX16060/MAX16061/MAX16062 are 1% accurate,

quad-/hex-/octal-voltage µP supervisors in a small thin

QFN package. These devices provide supervisory func-

tions for complex multivoltage systems. The MAX16060

monitors four voltages, the MAX16061 monitors six volt-

ages, and the MAX16062 monitors eight voltages.

These devices offer independent outputs for each mon-

itored voltage along with a reset output that asserts

whenever any of the monitored voltages fall below their

respective thresholds (down to 0.4V) or the manual

reset input is asserted. The reset output remains assert-

ed for the reset timeout after all voltages are above their

respective thresholds and the manual reset input is

deasserted. The minimum reset timeout is internally set

to 140ms or can be adjusted with an external capacitor.

All open-drain outputs have internal 30µA pullups that

eliminate the need for external pullup resistors.

However, each output can be driven with an external

voltage up to 5.5V. Other features offered include a

manual reset input, a tolerance pin for selecting 5% or

10% input thresholds, and a margin enable function for

deasserting the outputs during margin testing.

An additional feature is a watchdog timer that asserts

RESET when the watchdog timeout period (1.6s typ) is

exceeded. The watchdog timer can be disabled by

leaving WDI unconnected.

These devices are offered in 16-, 20-, and 24-pin thin

QFN packages (4mm x 4mm) and are fully specified

from -40

°C to +125°C.

Features

o Fixed Thresholds for 3.3V, 2.5V, and 1.8V Systems

o Adjustable Thresholds Monitor Low Voltages

(Down to 0.4V)

o 1% Accurate over Temperature

o Open-Drain Outputs with Internal Pullups Reduce

the Number of External Components

o Fixed 140ms (min) or Capacitor-Adjustable Reset

Timeout

o Manual Reset, Margin Enable, and Tolerance

Select Inputs

o Watchdog Timer

1.6s (typ) Timeout Period

54s Startup Delay After Reset

o Monitors Four (MAX16060), Six (MAX16061), or

Eight (MAX16062) Voltages

o RESET Output Indicates All Voltages Present

o Independent Voltage Monitors

o Small (4mm x 4mm) Thin QFN Package

1% Accurate, Quad-/Hex-/Octal-Voltage

µP Supervisors

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Maxim Integrated Products

1

MAX16061A

GND

μP

TOL

SRT

MR

IN1

MARGIN

RESET

WDI

OUT1

RST

I/O

IN2

IN3

IN4

IN5

IN6

OUT2

OUT3

OUT4

OUT5

OUT6

Ordering Information

Typical Operating Circuit

19-4099; Rev 0; 4/08

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

Note: The “_” is a placeholder for the input voltage threshold.

See Table 1. The MAX16060/MAX16061/MAX16062 are avail-

able in factory-preset thresholds/configuration combinations.

Choose the desired combination and complete part number

from Table 1.

+

Denotes a lead-free package.

For tape-and-reel, add a “T” after the “+.” Tape-and-reel are

offered in 2.5k increments.

*

EP = Exposed pad.

PART

TEMP RANGE

PIN-PACKAGE

MAX16060_TE+

-40

°C to +125°C

16 TQFN-EP*

MAX16061_TP+

-40

°C to +125°C

20 TQFN-EP*

MAX16062_TG+

-40

°C to +125°C

24 TQFN-EP*

Storage Equipment

Servers

Networking/Telecommun-

ication Equipment

Multivoltage ASICs

Automotive

Applications