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MAX6660AEE

更新时间： 2024-11-26 04:59:59
品牌 Logo 应用领域
美信 - MAXIM 调节器风扇
页数 文件大小 规格书
21页 204K
描述
Remote-Junction Temperature-Controlled Fan-Speed Regulator with SMBus Interface

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19-2225; Rev 0; 10/01  
Remote-Junction Temperature-Controlled  
Fan-Speed Regulator with SMBus Interface  
General Description  
Features  
The MAX6660 is a remote temperature sensor and fan-  
speed regulator that provides a complete fan-control  
solution. The remote temperature sensor is typically a  
common-collector PNP, such as a substrate PNP of a  
microprocessor, or a diode-connected transistor, typi-  
cally a low-cost, easily mounted 2N3904 NPN type or  
2N3906 PNP type.  
♦ Integrated Thermal Sensing and Fan-Regulation  
Solution  
♦ Programmable Fan Threshold Temperature  
♦ Programmable Temperature Range for Full-Scale  
Fan Speed  
♦ Accurate Closed-Loop Fan-Speed Regulation  
The device also incorporates a closed-loop fan con-  
troller that regulates fan speed with tachometer feed-  
back. The MAX6660 compares temperature data to a  
fan threshold temperature and gain setting, both pro-  
grammed over the SMBus™ by the user. The result is  
automatic fan control that is proportional to the remote-  
junction temperature. The temperature feedback loop  
can be broken at any time for system control over the  
speed of the fan.  
♦ On-Chip Power Device Drives Fans Rated  
Up to 250mA  
♦ Programmable Under/Overtemperature Alarms  
♦ SMBus 2-Wire Serial Interface with Timeout  
(Cannot “Lock Up” the SMBus)  
♦ Supports SMBus Alert Response  
Fan speed is voltage controlled as opposed to PWM  
controlled, greatly reducing acoustic noise and maxi-  
mizing fan reliability. An on-chip power device drives  
fans rated up to 250mA.  
♦ ACPI Compatible, Including OVERT System  
Shutdown Function  
♦ ±±1C (ꢀ+01C to ꢀ±001C) Thermal-Sensing Accuracy  
♦ MAX+++0EVKIT Available  
Temperature data is updated every 0.25s and is read-  
able at any time over the SMBus interface. The  
MAX6660 is accurate to 1°C (max) when the remote  
junction is between +60°C to +100°C. Data is formatted  
as a 10-bit + sign word with 0.125°C resolution.  
Ordering Information  
PART  
TEMP. RANGE  
PIN-PACKAGE  
MAX6660AEE  
-40°C to +125°C  
16 QSOP  
The MAX6660 is specified for -40°C to +125°C and is  
available in a 16-pin QSOP package.  
Typical Operating Circuit  
Applications  
+3V TO +5.5V  
PC  
0.1µF  
50Ω  
Notebooks  
10kΩ  
EACH  
Telecom Systems  
Industrial Control Systems  
Servers  
+12V  
5kΩ  
VFAN  
V
CC  
STBY  
Workstations  
FAN  
TACH IN  
CLOCK  
DATA  
SMBCLK  
SMBDATA  
ALERT  
1µF  
MAX6660  
FAN  
DXP  
SMBus is a trademark of Intel Corp.  
INTERUPT  
TO µP  
2200pF  
DXN  
TO SYSTEM  
SHUTDOWN  
OVERT  
PENTIUM  
AGND  
Pin Configuration appears at end of data sheet.  
ADD0  
ADD1 PGND  
________________________________________________________________ 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.  
1234567...21

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与MAX6660AEE相关器件

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MAX6660EVKIT MAXIM

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 		Evaluation System/Evaluation Kit for the MAX6660
MAX6660EVSYS MAXIM

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 		Evaluation System/Evaluation Kit for the MAX6660
MAX6661 MAXIM

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 		Remote Temperature-Controlled Fan-Speed Regulator with SPI-Compatible Interface
MAX6661AEE MAXIM

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 		Remote Temperature-Controlled Fan-Speed Regulator with SPI-Compatible Interface
MAX6661AEE+T MAXIM

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 		Analog Circuit, 1 Func, BICMOS, PDSO16, 0.150 INCH, 0.025 INCH PITCH, QSOP-16
MAX6662 MAXIM

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 		12-Bit + Sign Temperature Sensor with SPI-Compatible Serial Interface
MAX6662 ADI

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 		12位 + 符号位温度传感器，带有SPI兼容的串行接口
MAX6662MSA MAXIM

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 		12-Bit + Sign Temperature Sensor with SPI-Compatible Serial Interface
MAX6662MSA+ MAXIM

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 		Serial Switch/Digital Sensor, 12 Bit(s), 2.50Cel, BICMOS, Rectangular, 8 Pin, Surface Moun
MAX6662MSA+T MAXIM

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 		Serial Switch/Digital Sensor, 12 Bit(s), 2.50Cel, BICMOS, Rectangular, 8 Pin, Surface Moun

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