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ASC7512M8 PDF预览

ASC7512M8

更新时间： 2024-02-24 13:02:05
品牌 Logo 应用领域
其他 - ETC 风扇传感器温度传感器
页数 文件大小 规格书
35页 343K
描述
DIGITAL TEMPERATURE SENSOR WITH INTEGRATED FAN CONTROL

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中文翻译

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ASC7512M8 技术参数

生命周期：ObsoleteReach Compliance Code：unknown
风险等级：5.84Is Samacsys：N
Base Number Matches：1

ASC7512M8 数据手册

 浏览型号ASC7512M8的Datasheet PDF文件第2页浏览型号ASC7512M8的Datasheet PDF文件第3页浏览型号ASC7512M8的Datasheet PDF文件第4页浏览型号ASC7512M8的Datasheet PDF文件第5页浏览型号ASC7512M8的Datasheet PDF文件第6页浏览型号ASC7512M8的Datasheet PDF文件第7页 
aSC7512  
DIGITAL TEMPERATURE SENSOR  
WITH INTEGRATED FAN CONTROL  
PRODUCT SPECIFICATION  
Fully Released Specification  
Product Description  
Measurement System  
Temperature:  
The aSC7512 has a two wire digital interface compatible  
with SMBus 2.0. Using a 10-bit ΣΔ- ADC, the aSC7512  
measures the temperature of a remote diode connected  
transistor as well as its own die.  
•
•
•
0.25°C resolution, ±1°C accuracy on remote diode  
0.25°C resolution, ±3°C accuracy on local sensor  
Extended temperature measurement range on  
remote sensor –55°C to +125°C using or 2’s  
complement coding.  
Using temperature information from these two zones, an  
automatic fan speed control algorithm is employed to  
minimize acoustic impact while achieving recommended  
CPU temperature under varying operational loads.  
Fan Tachometer:  
To set fan speed, the aSC7512 has a pulse width  
modulation (PWM) output that is controlled by one of two  
temperature zones. Both high- and low-frequency PWM  
ranges are supported. The aSC7512 also includes a digital  
filter that can be invoked to smooth temperature readings  
for better control of fan speed and minimum acoustic  
impact. The aSC7512 has a tachometer input to measure  
fan speed or alternatively, an alert pin that may be  
triggered by exceeding a temperature limit setting. Limit  
and status registers for all measured values are included to  
alert the system host that any measurements are outside of  
programmed limits.  
•
16-bit count of 90KHz clock periods  
Limit alarms for all measured values  
Applications  
•
Desktop Computers – Motherboards and Graphics  
Cards  
Laptop Computers  
Microprocessor based equipment (e.g. Base-  
stations, Routers, ATMs, Point of Sales)  
•
•
Connection Diagram  
Features  
•
2-wire, SMBus 2.0 compliant, serial digital  
interface  
•
•
•
10-bit ΣΔ-ADC  
Monitors internal and remote thermal diodes  
8
7
6
5
1
SMBCLK  
SMBDAT  
VDD  
Programmable autonomous fan control based on  
temperature readings  
2
3
4
D+  
D-  
•
Noise filtering of temperature reading for fan  
control  
aSC7512  
TACH /  
ALERT  
•
•
0.25°C digital temperature sensor resolution  
PWM fan speed control output for 2-, 3- or 4-wire  
fans.  
PWM  
GND  
•
Provides high and low PWM frequency ranges  
•
•
Fan tachometer input or ALERT output  
8-lead MSOP or SOIC package  
Ordering Information  
Marking  
Temperature Range  
and Operating Voltage  
Part Number  
Package  
How Supplied  
aSC7512  
Ayww  
aSC7512D8  
aSC7512M8  
8-lead SOIC  
8-lead MSOP  
-40°C to +125°C, 3.3V  
2500 units Tape & Reel  
2500 units Tape & Reel  
7512  
Ayww  
-40°C to +125°C, 3.3V  
Ayww – Assembly site, year, workweek  
- 1 -  
© Andigilog, Inc. 2006  
www.andigilog.com  
August 2006 - 70A05003  
1234567...35

中文翻译

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