MAX6657

更新时间： 2024-11-25 22:55:15

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
17页	274K
描述
【1∑C, SMBus-Compatible Remote/Local Temperature Sensors with Overtemperature Alarms

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数据手册

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MAX6657 数据手册

19-2034; Rev 2; 3/02

±±1°C ꢀMꢁusꢂ°oꢃpatiꢄle ꢅeꢃote/ꢆocal ꢇeꢃperature

ꢀensors with Overteꢃperature Alarꢃs

General Description

Features

The MAX6657/MAX6658/MAX6659 are precise, two-

channel digital temperature sensors. Each accurately

measures the temperature of its own die and one

remote PN junction, and reports the temperature in digi-

tal form on a 2-wire serial interface. The remote junction

can be a diode-connected transistor like the low-cost

NPN type 2N3904 or 2N3906 PNP type. The remote

junction can also be a common-collector PNP, such as

a substrate PNP of a microprocessor.

ꢀ Dual Channel: Measures Remote and Local

Temperature

ꢀ 11-Bit, 0.125°C Resolution

ꢀ High Accuracy 1°C ꢀmaꢁx ꢂrom ꢃ+0°C to ꢃ100°C

ꢀRemotex

ꢀ No Calibration Required

ꢀ Programmable Under/Overtemperature Alarms

The 2-wire serial interface accepts standard System

Management Bus (SMBus™) commands such as Write

Byte, Read Byte, Send Byte, and Receive Byte to read

the temperature data and program the alarm thresholds

and conversion rate. The MAX6657/MAX6658/

MAX6659 can function autonomously with a program-

mable conversion rate, which allows the control of sup-

ply current and temperature update rate to match

system needs. For conversion rates of 4Hz or less, the

temperature is represented in extended mode as 10

bits + sign with a resolution of 0.125°C. When the con-

version rate is faster than 4Hz, output data is 7 bits +

sign with a resolution of 1°C. The MAX6657/

MAX6658/MAX6659 also include an SMBus timeout

feature to enhance system reliability.

ꢀ Programmable Conversion Rate

ꢀ0.0+25Hz to 1+Hzx

ꢀ SMBus/I²C™-Compatible Interꢂace

ꢀ Two Alarm Outputs: ALERT and OVERT1

ꢀMAX++57 and MAX++58x

ꢀ Three Alarm Outputs: ALERT, OVERT1,

and OVERT2 ꢀMAX++59x

Ordering Inforꢃation

TEMP.

RANGE

PIN-

MEASURED

PART

PACKAGE TEMP. RANGE

Remote accuracy is 1°C between +60°C and +100°C

with no calibration needed. The MAX6657 measures

temperatures from 0°C to +125°C and the MAX6658/

MAX6659 from -55°C to +125°C. The MAX6659 has the

added benefit of being able to select one of three

addresses through an address pin, and a second over-

temperature alarm pin for greater system reliability.

MAX6657MSA -55°C to +125°C 8 SO

MAX6658MSA -55°C to +125°C 8 SO

0°C to +125°C

-55°C to +125°C

MAX6659MEE -55°C to +125°C 16 QSOP -55°C to +125°C

Pin °onfigurations

Applications

Desktop Computers

Notebook Computers

Servers

Workstations

TOP VIEW

16 N.C.

N.C.

DXP

15 STBY

SMBCLK

SMBDATA

ALERT

14 SMBCLK

13 N.C.

DXP

DXN

MAX6659

MAX6657

MAX6658

ADD

12 SMBDATA

11 N.C.

Typical Operating Circuit appears at the end of the

data sheet.

OVERT1

GND

OVERT1

GND

10 OVERT2

GND

9 ALERT

QSOP

SMBus is a trademark of Intel Corp.

I C is a trademark of Philips 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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与MAX6657相关器件

型号	品牌	获取价格	描述	数据表
MAX6657_10	MAXIM	获取价格	1°C, SMBus-Compatible Remote/Local Temperatur
MAX6657-MAX6659	MAXIM	获取价格	【1∑C, SMBus-Compatible Remote/Local Temperatu
MAX6657MSA	MAXIM	获取价格	【1∑C, SMBus-Compatible Remote/Local Temperatu
MAX6657MSA+	MAXIM	获取价格	Serial Switch/Digital Sensor, 11 Bit(s), 1Cel, BICMOS, Rectangular, 8 Pin, Surface Mount,
MAX6657MSA+T	MAXIM	获取价格	暂无描述
MAX6657YMS	MAXIM	获取价格	Serial Switch/Digital Sensor, 11 Bit(s), 1Cel, BICMOS, Rectangular, 8 Pin, Surface Mount,
MAX6657YMSA	MAXIM	获取价格	1°C, SMBus-Compatible Remote/Local Temperatur
MAX6657YMSA+	MAXIM	获取价格	Serial Switch/Digital Sensor, 11 Bit(s), 1Cel, BICMOS, Rectangular, 8 Pin, Surface Mount,
MAX6657YMSA+T	MAXIM	获取价格	Serial Switch/Digital Sensor, 11 Bit(s), 1Cel, BICMOS, Rectangular, 8 Pin, Surface Mount,
MAX6658	MAXIM	获取价格	【1∑C, SMBus-Compatible Remote/Local Temperatu

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