Datasheet > ADT7473ARQZ-REEL7

ADT7473ARQZ-REEL7

更新时间： 2024-11-23 04:04:47

品牌	Logo	应用领域
亚德诺 - ADI		风扇监控控制器
页数	文件大小	规格书
76页	1929K
描述
dBCool Remote Thermal Monitor and Fan Controller

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数据手册
替代型号

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dBCool^®Remote Thermal

Monitor and Fan Controller

ADT7473

FEATURES

GENERAL DESCRIPTION

Controls and monitors up to 4 fans

High and low frequency fan drive signal

The ADT7473 dBCool controller is a thermal monitor and

multiple PWM fan controller for noise sensitive or power

sensitive applications requiring active system cooling. The

ADT7473 can drive a fan using either a low or high frequency

drive signal, monitor the temperature of up to two remote

sensor diodes plus its own internal temperature, and measure

and control the speed of up to four fans so they operate at the

lowest possible speed for minimum acoustic noise.

1 on-chip and 2 remote temperature sensors

Series resistance cancellation on the remote channel

Extended temperature measurement range, up to 191°C

Dynamic T_MINcontrol mode optimizes system acoustics

intelligently

Automatic fan speed control mode controls system cooling

based on measured temperature

Enhanced acoustic mode dramatically reduces user

perception of changing fan speeds

Thermal protection feature via THERM output

Monitors performance impact of Intel® Pentium®4 processor

Thermal control circuit via THERM input

The automatic fan speed control loop optimizes fan speed for a

given temperature. A unique dynamic T_MINcontrol mode

enables the system thermals/acoustics to be intelligently

managed. The effectiveness of the system’s thermal solution can

be monitored using the

input. The ADT7473 also

THERM

provides critical thermal protection to the system using the

bidirectional pin as an output to prevent system or

3-wire and 4-wire fan speed measurement

Limit comparison of all monitored values

Meets SMBus 2.0 electrical specifications

(fully SMBus 1.1 compliant)

THERM

component overheating.

Fully ROHS compliant

FUNCTIONAL BLOCK DIAGRAM

SCL SDA SMBALERT

ADT7473

SERIAL BUS

INTERFACE

PWM

PWM1

REGISTERS

AND

ACOUSTIC

ENHANCEMENT

CONTROL

AUTOMATIC

FAN SPEED

CONTROL

PWM2

PWM3

CONTROLLERS

(HF AND LF)

ADDRESS

POINTER

DYNAMIC

MIN

CONTROL

PWM

TACH1

TACH2

TACH3

TACH4

CONFIGURATION

REGISTERS

FAN

SPEED

COUNTER

INTERRUPT

MASKING

PERFORMANCE

MONITORING

INTERRUPT

STATUS

THERMAL

THERM

PROTECTION

REGISTERS

TOADT7473

SRC

D1+

D1–

D2+

D2–

INPUT

SIGNAL

LIMIT

COMPARATORS

10-BIT

ADC

CONDITIONING

AND

ANALOG

MULTIPLEXER

VALUE AND

LIMIT

REGISTERS

CCP

BAND GAP

REFERENCE

BAND GAP

TEMP SENSOR

GND

Figure 1.

Rev. A

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registeredtrademarks arethe property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

Fax: 781.461.3113

www.analog.com

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ADT7473ARQZ-REEL7 替代型号

型号	品牌	替代类型	描述	数据表
ADT7473ARQZ	ONSEMI	功能相似	dBCOOL Remote Thermal Monitor and Fan Control
ADT7473ARQZ-RL7	ONSEMI	功能相似	dBCOOL Remote Thermal Monitor and Fan Control
ADT7473ARQZ	ADI	功能相似	dBCool Remote Thermal Monitor and Fan Controller

与ADT7473ARQZ-REEL7相关器件

型号	品牌	获取价格	描述	数据表
ADT7473ARQZ-RL7	ONSEMI	获取价格	dBCOOL Remote Thermal Monitor and Fan Control
ADT7475	ADI	获取价格	dBCool Remote Thermal Monitor and Fan Controller
ADT7475	ONSEMI	获取价格	dbCOOL Remote Thermal Monitor and Fan Controller
ADT7475_1110	ONSEMI	获取价格	dbCOOL Remote Thermal Monitor and Fan Controller
ADT7475_13	ONSEMI	获取价格	Remote Thermal Monitor and Fan Controller
ADT7475_18	ONSEMI	获取价格	Remote Thermal Monitor and Fan Controller
ADT7475ARQ	ADI	获取价格	ADT7475ARQ
ADT7475ARQ-REEL	ADI	获取价格	ADT7475ARQ-REEL
ADT7475ARQ-REEL7	ADI	获取价格	ADT7475ARQ-REEL7
ADT7475ARQZ	ONSEMI	获取价格	dBCOOL Remote Thermal Monitor and Fan Controller

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