MAX6648MUA

更新时间： 2024-11-08 22:24:59

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
17页	279K
描述
Precision SMBus-Compatible Remote/Local Temperature Sensors with Overtemperature Alarms

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MAX6648MUA 数据手册

19-2545; Rev 1; 10/02

Precision SMBus-Compatible Remote/Local

Temperature Sensors with Overtemperature Alarms

General Description

Features

The MAX6648/MAX6692 are precise, two-channel digi-

tal temperature sensors. They accurately measure the

temperature of their own die and a remote PN junction,

and report the temperature in digital form using a 2-wire

serial interface. The remote PN junction is typically the

emitter-base junction of a common-collector PNP on a

CPU, FPGA, or ASIC.

ꢀ Dual Channel: Measures Remote and Local

Temperature

ꢀ 0.125°C Resolution

ꢀ High Accuracy: 0.ꢀ°C ꢁmaꢂx ꢃrom ꢄ25°C to

ꢄ125°C ꢁRemotex, and 2°C ꢁmaꢂx ꢃrom ꢄ+0°C to

ꢄ100°C ꢁLocalx

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 MAX6648/MAX6692

include an SMBus timeout. A fault queue prevents the

ALERT and OVERT outputs from setting until a fault has

been detected one, two, or three consecutive times

(programmable).

ꢀ Two Alarm Outputs: ALERT and OVERT

ꢀ Two Deꢃault OVERT Thresholds Available

MAX++4ꢀ: ꢄ110°C

MAX++92: ꢄꢀ5°C

ꢀ Programmable Conversion Rate

ꢀ SMBus-Compatible Interꢃace

ꢀ SMBus Timeout

The MAX6648/MAX6692 provide two system alarms:

ALERT and OVERT. ALERT asserts when any of four tem-

perature conditions are violated: local overtemperature,

remote overtemperature, local undertemperature, or

remote undertemperature. OVERT asserts when the tem-

perature rises above the value in either of the two OVERT

limit registers. The OVERT output can be used to activate

a cooling fan, or to trigger a system shutdown.

ꢀ Programmable Under/Overtemperature Alarm

Thresholds

Ordering Information

PIN-

MEASURED

PART

TEMP RANGE

PACKAGE TEMP RANGE

Measurements can be done autonomously, with the

conversion rate programmed by the user, or in a single-

shot mode. The adjustable conversion rate allows the

user to optimize supply current and temperature

update rate to match system needs.

MAX6648MUA -55ꢀC to +125ꢀC 8 µMAX

MAX6692MUA -55ꢀC to +125ꢀC 8 µMAX

MAX6692MSA -55ꢀC to +125ꢀC 8 SO

0ꢀC to +125ꢀC

Remote accuracy is ±±.8ꢀC maꢁimum error between

+25ꢀC and +125ꢀC with no calibration needed. The

MAX6648/MAX6692 operate from -55ꢀC to +125ꢀC, and

measure temperatures between ±ꢀC and +125ꢀC. The

MAX6648 is available in an 8-pin µMAX package, and the

MAX6692 is available in 8-pin µMAX and SO packages.

Typical Operating Circuit

3.3V

0.1µF

200Ω

Applications

10kΩ EACH

Desktop Computers

Notebook Computers

Servers

DXP

DATA

SDA

MAX6648

MAX6692

CLOCK

SCLK

Thin Clients

ALERT

INTERRUPTED TO µP

DXN

2200pF

Workstations

OVERT

TO FAN DRIVER OR

SYSTEM SHUTDOWN

GND

µP

Test and Measurement

Multichip Modules

Pin Configuration and Functional Diagram appear at end of

data sheet.

SMBus is a trademark of Intel Corp.

________________________________________________________________ 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...17

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MAX6648MUA 替代型号

型号	品牌	替代类型	描述	数据表
MAX6648MUA+	MAXIM	完全替代	Serial Switch/Digital Sensor, 10 Bit(s), 0.80Cel, BICMOS, Square, 8 Pin, Surface Mount, LE

与MAX6648MUA相关器件

型号	品牌	获取价格	描述	数据表
MAX6648MUA+	MAXIM	获取价格	Serial Switch/Digital Sensor, 10 Bit(s), 0.80Cel, BICMOS, Square, 8 Pin, Surface Mount, LE
MAX6648MUA-T	MAXIM	获取价格	暂无描述
MAX6648YMUA	MAXIM	获取价格	Serial Switch/Digital Sensor, 10 Bit(s), 0.80Cel, BICMOS, Rectangular, 8 Pin, Surface Moun
MAX6648YMUA+	MAXIM	获取价格	暂无描述
MAX6648YMUA+T	MAXIM	获取价格	Serial Switch/Digital Sensor, 10 Bit(s), 0.80Cel, BICMOS, Rectangular, 8 Pin, Surface Moun
MAX6649	MAXIM	获取价格	+145∑C Precision SMBus-Compatible Remote/ Loc
MAX6649	ADI	获取价格	+145°C、高精度、SMBus兼容、远端/本地传感器，带有过温报警
MAX6649MUA	MAXIM	获取价格	+145∑C Precision SMBus-Compatible Remote/ Loc
MAX6649MUA/V+	MAXIM	获取价格	Analog Circuit, 1 Func, BICMOS, PDSO8, ROHS COMPLIANT, UMAX-8
MAX6649MUA/V+T	MAXIM	获取价格	Analog Circuit, 1 Func, BICMOS, PDSO8, ROHS COMPLIANT, UMAX-8

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