SS8017 datasheet(1/16 Pages) SSC

Teilenummer	SS8017

Bauteilbeschribung	Two Remote Temperature Sensors with SMBus Serial Interface and System Reset

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Hersteller	SSC [Silicon Standard Corp.]

Direct Link	http://www.siliconstandard.com

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Two Remote Temperature Sensors with

SMBus Serial Interface and System Reset

Features

Description

Two channels: measures both remote and local

temperatures

No calibration required

SMBus 2-wire serial interface

Programmable under/over-temperature alarms

SMBus alert response supported

Accuracy:

±1°C (+60°C to +100°C, remote)

±3°C (+60°C to + 100°C, local)

Average supply current during conversion of

320µA (typ)

Supply range of +3V to +5.5V

Small 8-lead SO package

Applications

Desktop and Notebook

Central Office

Computers

Telecom Equipment

Smart Battery Packs

Test and Measurement

LAN Servers

Multi-Chip Modules

Industrial Controllers

Packing type

TR: Tape and reel

SS8017XX

Example: SS8017TR

à SS8017 shipped in tape and reel

Ordering Information

The SS8017 contains a precise digital thermometer, a

system-reset circuit, and a programmable thermal

shutdown signal.

The thermometer reports the temperature of two re-

mote

sensors.

The

remote

sensors

are

di-

ode-connected transistors, typically a low-cost, easily

mounted 2N3904 NPN type which replaces conven-

tional thermistors or thermocouples. Remote accuracy

is ±5°C for multiple transistor manufacturers, with no

calibration needed. The remote channel can also

measure the die temperature of other ICs, such as mi-

croprocessors,

that

contain

an

on-chip,

di-

ode-connected transistor.

The 2-wire serial interface accepts standard System

Management Bus (SMBus

TM) Write Byte, Read Byte,

Send Byte, and Receive Byte commands to program

the alarm thresholds and to read temperature data. The

data format is 7 bits plus sign, with each bit corre-

sponding to 1°C, in two’s-complement format. Meas-

urements can be done automatically and autono-

mously, with the conversion rate programmed by the

user or programmed to operate in a single-shot mode.

The adjustable rate allows the user to control the

supply-current drain.

SS8017

Rev.2.01 6/06/2003

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