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General Description

The MAX16041/MAX16042/MAX16043 are dual-/triple-/

quad-voltage monitors and sequencers that are offered

in a small thin QFN package. These devices offer enor-

mous design flexibility as they allow fixed and

adjustable thresholds to be selected through logic

inputs and provide sequence timing through small

external capacitors. These versatile devices are ideal

for use in a wide variety of multivoltage applications.

As the voltage at each monitored input exceeds its

respective threshold, its corresponding output goes

high after a propagation delay or a capacitor-set time

delay. When a voltage falls below its threshold, its

respective output goes low after a propagation delay.

Each detector circuit also includes its own enable input,

allowing the power-good outputs to be shut off inde-

pendently. The independent output for each detector

has an open-drain configuration capable of supporting

voltages up to 28V, thereby allowing them to interface

to shutdown and enable inputs of various DC-DC regu-

lators. Each detector can operate independently as four

separate supervisory circuits or can be daisy-chained

to provide controlled power-supply sequencing.

The MAX16041/MAX16042/MAX16043 also include a

push-pull reset function that deasserts only after all of

the independently monitored voltages exceed their

threshold. The reset timeout is internally fixed or can be

adjusted externally. These devices are offered in a

4mm x 4mm TQFN package and are fully specified

from -40°C to +125°C.

Applications

Multivoltage Systems

DC-DC Supplies

Servers/Workstations

Storage Systems

Networking/Telecommunication Equipment

Features

o 2.2V to 28V Operating Voltage Range

o Fixed Thresholds for 3.3V, 2.5V, 1.8V, 1.5V, and

1.2V Systems

o 1.5% Accurate Adjustable Threshold Monitors

Voltages Down to 0.5V

o 2.7% Accurate Fixed Thresholds Over

Temperature

o Fixed (140ms min)/Capacitor-Adjustable Delay

Timing

o Independent Open-Drain Outputs/Push-Pull

RESET Output

o Enable Inputs for Each Monitored Voltage

o 9 Logic-Selectable Threshold Options

o Manual Reset and Tolerance Select (5%/10%) Inputs

o Small, 4mm x 4mm TQFN Package

o Fully Specified from -40°C to +125°C

MAX16041/MAX16042/MAX16043

Dual-/Triple-/Quad-Voltage, Capacitor-

Adjustable, Sequencing/Supervisory Circuits

________________________________________________________________

Maxim Integrated Products

TOP VIEW

IN1

IN3

IN4

TOL

OUT1

OUT3

OUT4

RESET

TH0

CDLY3

456

1718 16 14 13

CDLY2

CDLY1

EN3

EN2

EN1

GND

MAX16043

IN2

OUT2

CDLY4

EN4

CRESET

TH1

TQFN

(4mm x 4mm)

Pin Configurations

Ordering Information

19-0622; Rev 0; 8/06

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

Denotes lead-free package.

For tape and reel, add a “T” after the “+.” All tape and reel

orders are available in 2.5k increments.

PART* TEMP RANGE

PIN-

PACKAGE

PKG

CODE

MAX16041TE+ -40°C to +125°C 16 TQFN T1644-4

MAX16042TP+ -40°C to +125°C 20 TQFN T2044-3

MAX16043TG+ -40°C to +125°C 24 TQFN T2444-4

Selector Guide

PART

MONITORED

VOLTAGES

INDEPENDENT

OUTPUTS

RESET

OUTPUT

MAX16041 2 2 (Open-drain) Push-pull

MAX16042 3 3 (Open-drain) Push-pull

MAX16043 4 4 (Open-drain) Push-pull

Pin Configurations continued at end of data sheet.

1 2 3 4 5 6 ... 14 15

MAX16041/MAX16042/MAX16043 1

Resumo do Conteúdo

Página 1 - MAX16041/MAX16042/MAX16043

General DescriptionThe MAX16041/MAX16042/MAX16043 are dual-/triple-/quad-voltage monitors and sequencers that are offeredin a small thin QFN package.

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MAX16041/MAX16042/MAX16043The following equation is provided to help estimate thevalue of the resistors based on the amount of acceptableerror:where e

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Adjustable Reset Timeout Period (CRESET)All of these parts offer an internally fixed reset timeout(140ms min) by connecting CRESET to VCC. The resetti

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MAX16041/MAX16042/MAX16043Dual-/Triple-/Quad-Voltage, Capacitor-Adjustable, Sequencing/Supervisory Circuits12 ________________________________________

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MAX16041/MAX16042/MAX16043Dual-/Triple-/Quad-Voltage, Capacitor-Adjustable, Sequencing/Supervisory Circuits___________________________________________

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MAX16041/MAX16042/MAX16043Dual-/Triple-/Quad-Voltage, Capacitor-Adjustable, Sequencing/Supervisory CircuitsMaxim cannot assume responsibility for use

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MAX16041/MAX16042/MAX16043Dual-/Triple-/Quad-Voltage, Capacitor-Adjustable, Sequencing/Supervisory Circuits2 _________________________________________

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MAX16041/MAX16042/MAX16043Dual-/Triple-/Quad-Voltage, Capacitor-Adjustable, Sequencing/Supervisory Circuits___________________________________________

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MAX16041/MAX16042/MAX16043Dual-/Triple-/Quad-Voltage, Capacitor-Adjustable, Sequencing/Supervisory Circuits___________________________________________

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MAX16041/MAX16042/MAX16043Dual-/Triple-/Quad-Voltage, Capacitor-Adjustable, Sequencing/Supervisory Circuits___________________________________________

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Rainbow-electronics MAX16043 Manual do Utilizador

Consulte online ou descarregue Manual do Utilizador para Sensores Rainbow-electronics MAX16043. Rainbow Electronics MAX16043 User Manual Manual do Utilizador

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