ADT7490ARQZ

更新时间： 2024-02-05 12:10:25

品牌	Logo	应用领域
亚德诺 - ADI		模拟IC 风扇信号电路光电二极管监控控制器
页数	文件大小	规格书
76页	1623K
描述
dBCool Remote Thermal Monitor and Fan Controller with PECI Interface

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ADT7490ARQZ 技术参数

是否Rohs认证：	符合	生命周期：	Transferred
零件包装代码：	SSOP	包装说明：	SSOP, SSOP24,.24
针数：	24	Reach Compliance Code：	unknown
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	5.04	Is Samacsys：	N
模拟集成电路 - 其他类型：	ANALOG CIRCUIT	JESD-30 代码：	R-PDSO-G24
JESD-609代码：	e3	长度：	8.6614 mm
功能数量：	1	端子数量：	24
最高工作温度：	125 °C	最低工作温度：	-40 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	SSOP
封装等效代码：	SSOP24,.24	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE, SHRINK PITCH	峰值回流温度（摄氏度）：	NOT SPECIFIED
电源：	3.3 V	认证状态：	Not Qualified
座面最大高度：	1.7526 mm	子类别：	Motion Control Electronics
最大供电电流 (Isup)：	5 mA	最大供电电压 (Vsup)：	3.6 V
最小供电电压 (Vsup)：	3 V	标称供电电压 (Vsup)：	3.3 V
表面贴装：	YES	温度等级：	AUTOMOTIVE
端子形式：	GULL WING	端子节距：	0.635 mm
端子位置：	DUAL	处于峰值回流温度下的最长时间：	NOT SPECIFIED
宽度：	3.9116 mm	Base Number Matches：	1

ADT7490ARQZ 数据手册

dBCool Remote Thermal Monitor and Fan

Controller with PECI Interface

ADT7490

FEATURES

GENERAL DESCRIPTION

Temperature measurement:

1 local on-chip temperature sensor

2 remote temperature sensors

The ADT7490 is a dBCool® thermal monitor and multiple

PWM fan controller for noise-sensitive or power-sensitive

applications requiring active system cooling. The ADT7490

3-current external temperature sensors with series

resistance cancellation (SRC)

PECI interface for CPU thermal information and support of

up to 4 PECI inputs on one pin

Fan drive and fan speed control

3 high frequency or low frequency PWM outputs for use

with 3-wire or 4-wire fans

4 TACH inputs to measure fan speed

OS independent automatic fan speed control based on

thermal information

Dynamic T_MINcontrol mode to optimize system acoustics

Default startup at 100% PWM for all fans for robust

operation

Bidirectional THERM/SMBALERT pin to flag out-of-limit and

overtemperature conditions

includes a local temperature sensor, two remote temperature

sensors including series resistance cancellation, and monitors

CPU temperature with a PECI interface. The ADT7490 can

drive a fan using either a low or high frequency drive signal,

and measure and control the speed of up to four fans so they

operate at the lowest possible speed for minimum acoustic noise.

The automatic fan speed control loop optimizes fan speed

for a given temperature using the PECI, remote, or local

temperature information. The effectiveness of the system’s

THERM

thermal solution can be monitored using the

The ADT7490 also provides critical thermal protection to

THERM SMBALERT

pin as

input.

the system using the bidirectional

an output to prevent system or component overheating.

GPIO functionality to support extra features

Can be used for loadline setting for voltage regulation,

LED control, or other functions

_MONmonitoring for CPU current and power information

Footprint and register compatible with ADT7473/ADT7475/

ADT7476/ADT7476A family of fan controllers

SMBus interface with addressing capability for up to

3 devices

APPLICATIONS

Personal Computers

Servers

Rev. 0

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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