Rainbow-electronics MAX6575H User Manual download pdf

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 MAX6575L/H is a low-cost, low-current temperature

sensor with a single-wire digital interface. It features

accuracy of ±3°C at +25°C, ±4.5°C at +85°C, and ±5°C

at +125°C. The MAX6575L/H is a monostable, externally

triggered temperature sensor that allows a microproces-

sor (µP) to interface with up to eight temperature sen-

sors using a single control line. Temperatures are

sensed by measuring the time delay between the falling

edge of the external triggering pulse and the falling

edge of the subsequent pulse delays reported from the

devices. Different sensors on the same I/O line use dif-

ferent timeout multipliers to avoid overlapping signals.

The MAX6575L/H features eight different timeout multi-

pliers; these are selectable by using the two time-select

pins on each device and choosing the “L” or “H” ver-

sion. The “L” version provides four delay ranges less

than 50ms. The “H” version provides four delay ranges

greater than 50ms. The MAX6575L/H is available in a

space-saving 6-pin SOT23 package.

Applications

Critical µP and µC Temperature Monitoring

Portable Battery-Powered Equipment

Cell Phones

Battery Packs

Hard Drives/Tape Drives

Networking and Telecom Equipment

Medical Equipment

Automotive

Features

♦ Simple Single-Wire Interface to µP or µC

♦ Multidrop up to Eight Sensors on One Wire

♦ ±0.8°C Accuracy at +25°C (±3°C max)

♦ Operates from +2.7V to +5.5V Supply Voltage

♦ Low 150µA (typ) Supply Current

♦ Standard Operating Temperature Range:

-40°C to +125°C

♦ Small 6-Pin SOT23 Package

MAX6575L/H

SOT Temperature Sensor with

Multidrop Single-Wire Digital Interface

________________________________________________________________

Maxim Integrated Products

19-1485; Rev 0; 4/99

PART

MAX6575LZUT -40°C to +125°C

TEMP. RANGE

PIN-

PACKAGE

6 SOT23

Ordering Information

Selector Guide

SOT

TOP MARK

AABG

MAX6575HZUT AABH-40°C to +125°C 6 SOT23

TIMEOUT MULTIPLIERS

(µs/°K)

MAX6575L 5, 20, 40, 80

MAX6575H 160, 320, 480, 640

PART

Pin Configurations appear at end of data sheet.

GND

TS0

TS1

I/O

0.1µF

MAX6575L

CHIP #1 CHIP #8

10k

+2.7V TO +5.5V

GND

TS0

TS1

I/O

0.1µF

MAX6575H

µP

I/O

GND

Typical Operating Circuit

1 2 3 4 5 6 ... 11 12

Summary of Contents

Page 1 - SOT Temperature Sensor with

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 Descript

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MAX6575L/HSOT Temperature Sensor with Multidrop Single-Wire Digital Interface10 ______________________________________________________________________

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MAX6575L/HSOT Temperature Sensor with Multidrop Single-Wire Digital Interface_________________________________________________________________________

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MAX6575L/HSOT Temperature Sensor with Multidrop Single-Wire Digital InterfaceMaxim cannot assume responsibility for use of any circuitry other than ci

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MAX6575L/HSOT Temperature Sensor with Multidrop Single-Wire Digital Interface2 _______________________________________________________________________

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MAX6575L/HSOT Temperature Sensor with Multidrop Single-Wire Digital Interface_________________________________________________________________________

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MAX6575L/HSOT Temperature Sensor with Multidrop Single-Wire Digital Interface4 _______________________________________________________________________

Page 8

Time-Select Pins (TS1, TS0)Table 1 shows the configuration of the Time-select pinsfor the MAX6575L/H. Each device allows four selec-table timeout mult

Page 9

MAX6575L/HInterfacing Multiple Devices with a Microcontroller Figure 2 shows how to interface multiple MAX6575L/Hdevices with an 8051 microcontroller.

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MAX6575L/HSOT Temperature Sensor with Multidrop Single-Wire Digital Interface_________________________________________________________________________

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MAX6575L/HSOT Temperature Sensor with Multidrop Single-Wire Digital Interface8 _______________________________________________________________________

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MAX6575L/HSOT Temperature Sensor with Multidrop Single-Wire Digital Interface_________________________________________________________________________

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Rainbow-electronics MAX6575H User Manual

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Summary of Contents

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