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General Description

The MAX6338 quad voltage monitor is capable of moni-

toring up to four supplies without any external compo-

nents. A variety of factory-trimmed threshold voltages

and supply tolerances are available to optimize the

MAX6338 for specific applications. The selection

includes input options for monitoring +5.0V, +3.3V,

+3.0V, +2.5V, +1.8V, and -5.0V voltages. An additional

high-input impedance comparator option can be used

as an adjustable voltage monitor, general-purpose com-

parator, or digital level translator.

Each of the monitored voltages is available with trip

thresholds to support power-supply tolerances of either

5% or 10% below the nominal voltage. An internal

bandgap reference ensures accurate trip thresholds

across the extended (-40°C to +85°C) operating temper-

ature range.

The MAX6338 consumes 25µA (typ) supply current and

operates with supply voltages from +2.5V to +5.5V. An

internal undervoltage lockout circuit forces all four digital

outputs low when V

drops below the minimum operat-

ing voltage. The four digital outputs all have weak inter-

nal pull-ups to V

, allowing wire-ORed connection.

Each input threshold voltage has an independent output.

The MAX6338 is available in a 10-pin µMAX package.

________________________Applications

Telecommunications

High-End Printers

Desktop and Notebook Computers

Data Storage Equipment

Networking Equipment

Industrial Equipment

Set-Top Boxes

Features

♦ Monitors Four Voltages (Factory Programmed or

User Adjustable)

+5.0V, +3.3V, +3.0V, +2.5V, +1.8V, -5.0V

(nominal) or User-Adjustable Settings

♦ Low 25µA Supply Current

♦ Four Independent, Open-Drain, Active-Low

Outputs

♦ +2.5V to +5.5V Supply Voltage Range

♦ Guaranteed from -40°C to +85°C

♦ No External Components Required

♦ Small 10-Pin µMAX Package

MAX6338

Quad Voltage Monitor in µMAX Package

________________________________________________________________ Maxim Integrated Products 1

OUT1

OUT2

OUT3IN4

IN3

IN2

IN1

MAX6338

µMAX

TOP VIEW

OUT4GND

Pin Configuration

NOMINAL INPUT VOLTAGE

PART

IN1

(V)

IN2

(V)

IN3

(V)

IN4

(V)

SUPPLY

TOLERANCE

(%)

MAX6338AUB

3.3 2.5 Adj*

MAX6338BUB

3.3 2.5† Adj*

MAX6338CUB

3.3 1.8 Adj*

MAX6338DUB

3.3 1.8† Adj*

MAX6338EUB

3.0 2.5 Adj*

MAX6338FUB

3.0 2.5† Adj*

MAX6338GUB

3.0 1.8 Adj*

MAX6338HUB

3.0 1.8† Adj*

MAX6338IUB

3.3 2.5 1.8

MAX6338JUB

3.3 2.5† 1.8†

MAX6338KUB

Adj* 3.3 2.5 Adj*

MAX6338LUB

Adj* 3.3 2.5† Adj*

MAX6338MUB

3.0 Adj*

-5 10

MAX6338NUB

3.0 Adj*

-5 5

MAX6338OUB

3.3 Adj*

-5 10

MAX6338PUB

3.3 Adj*

-5 5

19-1695; Rev 1; 7/01

Ordering Information

Selector Guide

PART TEMP. RANGE PIN-PACKAGE

MAX6338_UB* -40°C to +85°C 10 µMAX

*Insert the desired letter from the Selector Guide into the blank

to complete the part number.

*Adjustable voltage based on +1.23V internal threshold. External

threshold voltage can be set using an external resistor-divider.

† Nominal input voltages for 1.8V and 2.5V are specified for 10%

tolerances

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.

1 2 3 4 5 6 7 8

Resumo do Conteúdo

Página 1 - TOP VIEW

General DescriptionThe MAX6338 quad voltage monitor is capable of moni-toring up to four supplies without any external compo-nents. A variety of facto

Página 2 - ELECTRICAL CHARACTERISTICS

MAX6338Quad Voltage Monitor in µMAX Package 2 _______________________________________________________________________________________ABSOLUTE MAXIMUM

Página 3 - = +5V, T

MAX6338Quad Voltage Monitor in µMAX Package _______________________________________________________________________________________ 310201530254035452

Página 4 - Pin Description

_______________Detailed DescriptionThe MAX6338 is a low-power (25µA), quad voltagemonitor designed for multivoltage systems. Preset volt-age options f

Página 5 - MAX6338M/N/O/P

MAX6338Quad Voltage Monitor in µMAX Package _______________________________________________________________________________________ 5IN1IN2IN3*(AUX)*I

Página 6 - Window Detection

MAX6338output toggles in one direction or the other. Theseresistors are not required when using the MAX6338because hysteresis is built into the device

Página 7 - Chip Information

Auxiliary InputThe adjustable voltage monitor is comparable to aninternal reference of 1.23V as shown in Figure 6. To setthe desired trip level of mon

Página 8 - Package Information

MAX6338Quad Voltage Monitor in µMAX Package Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Ma

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Rainbow-electronics MAX6338 Manual do Utilizador

Consulte online ou descarregue Manual do Utilizador para Sensores Rainbow-electronics MAX6338. Rainbow Electronics MAX6338 User Manual Manual do Utilizador

Resumo do Conteúdo

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