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ADT7490ARQZ-RL7U1 PDF预览

ADT7490ARQZ-RL7U1

更新时间： 2024-11-26 20:01:43
品牌 Logo 应用领域
安森美 - ONSEMI 光电二极管
页数 文件大小 规格书
75页 723K
描述
SPECIALTY ANALOG CIRCUIT, PDSO24, ROHS COMPLIANT, MO-137AE, QSOP-24

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中文翻译

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ADT7490ARQZ-RL7U1 技术参数

生命周期：Obsolete零件包装代码：SSOP
包装说明：SSOP,针数：24
Reach Compliance Code：unknownHTS代码：8542.39.00.01
风险等级：5.06模拟集成电路 - 其他类型：ANALOG CIRCUIT
JESD-30 代码：R-PDSO-G24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
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, SHRINK PITCH
认证状态：Not Qualified座面最大高度：1.7526 mm
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
宽度：3.9116 mmBase Number Matches：1

ADT7490ARQZ-RL7U1 数据手册

 浏览型号ADT7490ARQZ-RL7U1的Datasheet PDF文件第2页浏览型号ADT7490ARQZ-RL7U1的Datasheet PDF文件第3页浏览型号ADT7490ARQZ-RL7U1的Datasheet PDF文件第4页浏览型号ADT7490ARQZ-RL7U1的Datasheet PDF文件第5页浏览型号ADT7490ARQZ-RL7U1的Datasheet PDF文件第6页浏览型号ADT7490ARQZ-RL7U1的Datasheet PDF文件第7页 
ADT7490  
Remote Thermal Monitor  
and Fan Controller with  
PECI Interface  
The ADT7490 is a thermal monitor and multiple PWM fan  
controller for noise-sensitive or power-sensitive applications requiring  
active system cooling. The ADT7490 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 thermal solution can be  
monitored using the THERM input. The ADT7490 also provides  
critical thermal protection to the system using the bidirectional  
THERM/SMBALERT pin as an output to prevent system or  
component overheating.  
http://onsemi.com  
QSOP−24 NB  
CASE 492B  
PIN ASSIGNMENT  
1
2
24  
23  
22  
21  
20  
19  
18  
SDA  
SCL  
GND  
PWM1/XTO  
V
CCP  
3
+2.5V /THERM  
IN  
Features  
V
CC  
4
+12V  
IN  
Temperature Measurement  
GPIO1  
GPIO2  
PECI  
5
+5V  
IN  
MON  
1 Local On-Chip Temperature Sensor  
2 Remote Temperature Sensors  
6
I
ADT7490  
7
D1+  
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 1 Pin  
V
8
17 D1−  
16 D2+  
15 D2−  
TT  
TACH3  
PWM2/  
SMBALERT  
TACH1  
9
10  
11  
12  
14  
13  
*
Fan Drive and Fan Speed Control  
TACH2  
PWM3/ADDREN  
3 High Frequency or Low Frequency PWM Outputs for Use with  
3-wire or 4-wire Fans  
*TACH4/THERM/SMBALERT/ADDR SELECT  
4 TACH Inputs to Measure Fan Speed  
OS Independent Automatic Fan Speed Control Based on Thermal  
Information  
MARKING DIAGRAMS  
Dynamic T  
Control Mode to Optimize System Acoustics  
MIN  
Default Startup at 100% PWM for All Fans for Robust Operation  
Bidirectional THERM/SMBALERT Pin to Flag Out-of-Limit and  
Overtemperature Conditions  
1
ADT7490  
ARQZ  
Assembly Lot  
#DateCode  
GPIO Functionality to Support Extra Features  
Can be Used for Loadline Setting for Voltage Regulation, LED  
Control, or Other Functions  
TOP MARKING  
BOTTOM MARKING  
I  
Monitoring for CPU Current and Power Information  
MON  
# = Pb-Free Package  
Footprint and Register Compatible with ADT7473/ADT7475/  
ADT7476/ADT7476A Family of Fan Controllers  
ORDERING INFORMATION  
See detailed ordering and shipping information in the package  
dimensions section on page 74 of this data sheet.  
SMBus Interface with Addressing Capability for Up to 3 Devices  
Applications  
Personal Computers  
Servers  
Semiconductor Components Industries, LLC, 2012  
1
Publication Order Number:  
July, 2012 − Rev. 5  
ADT7490/D  
1234567...75

中文翻译

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