MAX16055 datasheet, PDF - EEWORLD Datasheet

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MAX16055: DescriptionUltra-Small, Hex Voltage, Microprocessor Supervisor; File Size154KB，9 Pages; ManufacturerMaxim; Websitehttps://www.maximintegrated.com/en.html

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MAX16055 Overview

Ultra-Small, Hex Voltage, Microprocessor Supervisor

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19-4411; Rev 0; 1/09

Ultra-Small, Hex Voltage,

Microprocessor Supervisor

General Description

The MAX16055 precision hex voltage microprocessor

(µP) supervisory circuit monitors up to six system-sup-

ply voltages and asserts a single reset when any one

supply voltage drops below its preset threshold. The

device significantly reduces system size and compo-

nent count while improving reliability compared to multi-

ple ICs or discrete components.

A variety of factory-trimmed threshold voltages are avail-

able to accommodate different supply voltages and tol-

erance with minimal external components. The

MAX16055 includes internally fixed threshold options for

monitoring 3.3V, 3.0V, 2.5V, 1.8V, 1.5V, 1.2V, 1.1V, 1.0V,

and 0.9V supplies with -5% or -10% tolerance. The

MAX16055 is also available with one to five adjustable

threshold inputs to monitor voltages down to 0.5V.

A single active-low, open-drain output asserts when

any monitored input falls below its associated thresh-

old. The reset output features a weak internal pullup

(typically 70µA) to supply input IN1. The reset output

remains low for the reset timeout period (140ms, min)

after all voltages rise above the selected thresholds.

The reset output remains valid as long as either IN1 or

IN2 input voltage is above 1V. The MAX16055 is avail-

able in a small 10-pin µMAX

(3mm x 3mm) package.

The MAX16055 operates over the -40°C to +125°C

automotive temperature range.

Features

Precision Factory-Set Reset Threshold Options

3.3V, 3.0V, 2.5V, 1.8V, 1.5V, 1.2V, 1.1V, 1.0V, and

0.9V

Adjustable Voltage Threshold Monitors Down to

0.5V with 1.5% Accuracy

Open-Drain

RESET

Output with 70µA Internal

Pullup

Fixed 140ms (min) Reset Timeout Period

Manual Reset Input

Reset Valid for IN1

≥

1V or IN2

≥

Tolerance Select (5%/10%) Input

Immune to Short Supply Transients

MAX16055

Ordering Information

PART

MAX16055_AUB+*

TEMP RANGE

-40°C to +125°C

PIN-PACKAGE

10 µMAX

+Denotes

a lead(Pb)-free/RoHS-compliant package.

*Insert

the desired threshold option letter from the Selector

Guide into the blank to complete the part number. Contact factory

for availability.

Applications

Telecommunications

High-End Printers

Desktop and Notebook

Computers

Data Storage Equipment

µMAX is a registered trademark of Maxim Integrated Products, Inc.

MAX16055

10kΩ

IN1

0.1µF

µP

RESET

IN2

IN3

IN4

IN5

IN6

GND TOL

Networking Equipment

Industrial Equipment

Set-Top Boxes

Servers/Workstations

Typical Operating Circuit

Pin Configuration

TOP VIEW

IN1 1

IN2

IN3

IN4

IN5

MONITORED

SUPPLIES

10 GND

RESET

TOL

IN6

MAX16055

µMAX

________________________________________________________________

Maxim Integrated Products

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.

MAX16055 Related Products

	MAX16055	MAX16055_AUB+
Description	Ultra-Small, Hex Voltage, Microprocessor Supervisor	Ultra-Small, Hex Voltage, Microprocessor Supervisor

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