Datasheet > MAX6642

MAX6642

更新时间： 2024-09-14 23:51:15

品牌	Logo	应用领域
美信 - MAXIM		传感器温度传感器
页数	文件大小	规格书
13页	218K
描述
?癈. SMBus-Compatible Remote/Local Temperature Sensor with Overtemperature Alarm

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MAX6642 数据手册

19-2920; Rev 0; 8/03

±±1°C ꢀMꢁusꢂ°oꢃpatiꢄle ꢅeꢃoteꢆ/ocal

Teꢃperature ꢀensor with Overteꢃperature Alarꢃ

General Description

Features

The MAX6642 is a precise, two-channel digital temper-

ature sensor. It accurately measures the temperature of

its own die and a remote PN junction, and reports the

temperature data over a 2-wire serial interface. The

remote PN junction is typically a substrate PNP transis-

tor on the die of a CPU, ASIC, GPU, or FPGA. The

remote PN junction can also be a discrete diode-con-

nected small-signal transistor.

o Dual Channel: Measures Remote and Local

Temperature

o +0.25°C Resolution

o High Accuracy ±±°C ꢀmaꢁx ꢀRemotex and

2°C ꢀLocalx from +60°C to +±00°C

o Measures Remote Temperature Up to +±50°C

o Programmable Overtemperature Alarm

The 2-wire serial interface accepts standard system

management bus (SMBus™), Write Byte, Read Byte,

Send Byte, and Receive Byte commands to read the

temperature data and to program the alarm thresholds.

To enhance system reliability, the MAX6642 includes an

SMBus timeout. The temperature data format is 10 bit

with the least significant bit (LSB) corresponding to

+0.25°C. The ALERT output asserts when the local or

remote overtemperature thresholds are violated. A fault

queue may be used to prevent the ALERT output from

setting until two consecutive faults have been detected.

Temperature Thresholds

o SMBus/I²C^TM-Compatible Interface

o Tiny TDFN Package

Ordering Inforꢃation

PART

TEMP RANGE

-40°C to +125°C

PIN-PACKAGE

6 TDFN

MAX6642ATT90-T

MAX6642ATT92-T

MAX6642ATT94-T

MAX6642ATT96-T

MAX6642ATT98-T

MAX6642ATT9A-T

MAX6642ATT9C-T

MAX6642ATT9E-T

6 TDFN

Measurements can be done autonomously or in a sin-

gle-shot mode.

6 TDFN

Remote accuracy is 1°C maꢀimum error between

+60°C and +100°C. The MAX6642 operates from -40°C

to +125°C, and measures remote temperatures

between 0°C and +150°C. The MAX6642 is available in

a 6-pin TDFN package.

6 TDFN

SMBus is a trademark of Intel Corp.

Purchase of I C components of Maxim Integrated Products, Inc.

or one of its sublicensed Associated Companies, conveys a

license under the Philips I C Patent Rights to use these compo-

nents in an I C system, provided that the system conforms to the

I C Standard Specification as defined by Philips.

Applications

Desktop Computers

Notebook Computers

Servers

Pin Configuration and Functional Diagram appear at end of

data sheet.

Thin Clients

Test and Measurement

Workstations

Typical Operating °ircuit

Graphic Cards

3.3V

ꢀelector Guide

0.1µF

47Ω

TOP

MARK

PART

MEASURED TEMP RANGE

10kΩ EACH

MAX6642ATT90-T

MAX6642ATT92-T

MAX6642ATT94-T

MAX6642ATT96-T

MAX6642ATT98-T

MAX6642ATT9A-T

MAX6642ATT9C-T

MAX6642ATT9E-T

0°C to +150°C

AFC

AFD

AFE

AFF

AEW

AFG

AFH

AFI

2200pF

MAX6642

SDA

DATA

DXP

SCLK

CLOCK

ALERT

INTERRUPT TO µP

GND

µP

________________________________________________________________ Maxim Integrated Products

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.

12 3 4 5 6 7...13

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与MAX6642相关器件

型号	品牌	获取价格	描述	数据表
MAX6642_08	MAXIM	获取价格	Â±1Â°C, SMBus-Compatible Remote/Local Tempera
MAX6642_09	MAXIM	获取价格	±1°C, SMBus-Compatible Remote/Local Temperatu
MAX6642_0910	MAXIM	获取价格	±1°C, SMBus-Compatible Remote/Local Temperatu
MAX6642_V01	MAXIM	获取价格	Â±1Â°C, SMBus-Compatible Remote/Local Tempera
MAX6642ATT90	MAXIM	获取价格	SMBus-Compatible Remote/Local Temperature Sensor with Overtemperature Alarm
MAX6642ATT90+	MAXIM	获取价格	Serial Switch/Digital Sensor, 10 Bit(s), 1Cel, BICMOS, Square, 6 Pin, Surface Mount, 3 X 3
MAX6642ATT90+T	MAXIM	获取价格	Serial Switch/Digital Sensor, 10 Bit(s), 1Cel, BICMOS, Square, 6 Pin, Surface Mount, 3 X 3
MAX6642ATT90-T	MAXIM	获取价格	【1∑C, SMBus-Compatible Remote/Local Temperatu
MAX6642ATT92	MAXIM	获取价格	SMBus-Compatible Remote/Local Temperature Sensor with Overtemperature Alarm
MAX6642ATT92+	MAXIM	获取价格	Serial Switch/Digital Sensor, 10 Bit(s), 1Cel, BICMOS, Square, 6 Pin, Surface Mount, 3 X 3

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