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ASC7611QS24 PDF预览

ASC7611QS24

更新时间： 2024-02-16 02:55:08
品牌 Logo 应用领域
其他 - ETC 风扇监控监视器
页数 文件大小 规格书
40页 509K
描述
HARDWARE MONITOR WITH INTEGRATED FAN CONTROL

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中文翻译

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ASC7611QS24 技术参数

生命周期：Obsolete包装说明：,
Reach Compliance Code：unknown风险等级：5.83
Is Samacsys：NBase Number Matches：1

ASC7611QS24 数据手册

 浏览型号ASC7611QS24的Datasheet PDF文件第2页浏览型号ASC7611QS24的Datasheet PDF文件第3页浏览型号ASC7611QS24的Datasheet PDF文件第4页浏览型号ASC7611QS24的Datasheet PDF文件第5页浏览型号ASC7611QS24的Datasheet PDF文件第6页浏览型号ASC7611QS24的Datasheet PDF文件第7页 
aSC7611  
HARDWARE MONITOR  
WITH INTEGRATED FAN CONTROL  
Preliminary Specification  
Product Description  
PRODUCT SPECIFICATION  
Measurement System  
Temperature:  
The aSC7611 has a two wire digital interface compatible  
with SMBus 2.0. Using a 10-bit ΣΔ- ADC, the aSC7611  
measures the temperature of two remote diode connected  
transistors as well as its own die.  
•
•
•
0.25°C resolution, ±2°C accuracy on remote diode  
0.25°C resolution, ±3°C accuracy on local sensor  
Temperature measurement range on remote  
sensor –55°C to +125°C using 2’s complement  
coding.  
Using temperature information from these three zones, an  
automatic fan speed control algorithm is employed to  
minimize acoustic impact while achieving recommended  
CPU temperature under varying operational loads.  
Voltage:  
To set fan speed, the aSC7611 has three independent  
pulse width modulation (PWM) outputs that are controlled  
by one, or a combination of three, temperature zones.  
Both high- and low-frequency PWM ranges are supported.  
The aSC7611 also includes a digital filter that can be  
invoked to smooth temperature readings for better control  
of fan speed and minimum acoustic impact. The aSC7611  
has tachometer inputs to measure fan speed on up to four  
fans. Limit and status registers for all measured values are  
included to alert the system host that any measurements  
are outside of programmed limits via status registers.  
•
10-bit Resolution, ±2% of Full Scale  
Fan Tachometer:  
•
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)  
System voltages of VCCP, 2.5V, 3.3V, 5.0V, and 12V  
motherboard power are monitored efficiently with internal  
scaling resistors.  
•
•
Features  
Connection Diagram  
•
•
•
•
2-wire, SMBus 2.0 compliant, serial interface  
10-bit ΣΔ-ADC  
1
2
SMBDAT  
SMBCLK  
GND  
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
14  
13  
PWM1/  
XTESTOUT  
VCCP  
Monitors internal and remote thermal diodes  
Monitors VCCP, 2.5V, 3.3V, 5.0V, and 12V  
motherboard/processor supplies  
3
2.5V  
•
•
Programmable autonomous fan control based on  
temperature readings  
3.3V  
4
12V  
VID0  
5
5V  
Noise filtering of temperature reading for fan  
control  
VID1  
6
VID4  
aSC7611  
•
•
0.25°C digital temperature sensor resolution  
3 PWM fan speed control outputs for 2-, 3- or 4-  
wire fans.  
7
VID2  
REMOTE 1+  
REMOTE 1-  
REMOTE 2+  
REMOTE 2-  
8
VID3  
9
TACH3  
PWM2  
TACH1  
TACH2  
•
•
•
•
•
Provides high and low PWM frequency ranges  
4 fan tachometer inputs  
10  
11  
12  
Monitors 5 VID control lines  
24-Lead QSOP package  
TACH4/  
AddressSelect  
PWM3/  
XOR-tree test mode  
AddressEnable  
Ordering Information  
Temperature Range  
and Operating Voltage  
Part Number  
Package  
Marking  
How Supplied  
aSC7611  
Ayww  
aSC7611QS24  
24-lead QSOP  
0°C to +120°C, 3.3V  
2500 units Tape & Reel  
Ayww – Assembly site, year, workweek  
- 1 -  
© Andigilog, Inc. 2006  
www.andigilog.com  
October 2006 - 70A05007  
1234567...40

中文翻译

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