參數(shù)資料
型號(hào)： ASC7512M8
廠商： Electronic Theatre Controls, Inc.
元件分類： 溫度/濕度傳感器
英文描述： DIGITAL TEMPERATURE SENSOR WITH INTEGRATED FAN CONTROL
中文描述： 數(shù)字溫度傳感器整合了風(fēng)扇控制
文件頁(yè)數(shù)： 1/35頁(yè)
文件大小： 337K
代理商： ASC7512M8
Fully Released Specification
Product Description
- 1 -
Andigilog, Inc. 2006
www.andigilog.com
August 2006 - 70A05003
D
IGITAL
T
EMPERATURE
S
ENSOR
W
ITH
I
NTEGRATED
F
AN
C
ONTROL
P
RODUCT
S
PECIFICATION
aSC7512
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.
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.
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.
Features
2-wire, SMBus 2.0 compliant, serial digital
interface
10-bit
ΣΔ
-ADC
Monitors internal and remote thermal diodes
Programmable autonomous fan control based on
temperature readings
Noise filtering of temperature reading for fan
control
0.25
°
C digital temperature sensor resolution
PWM fan speed control output for 2-, 3- or 4-wire
fans.
Provides high and low PWM frequency ranges
Fan tachometer input or
ALERT
output
8-lead MSOP or SOIC package
Measurement System
Temperature:
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.
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)
Connection Diagram
Ordering Information
Part Number
Package
Temperature Range
and Operating Voltage
Marking
How Supplied
aSC7512D8
8-lead SOIC
-40°C to +125°C, 3.3V
aSC7512
Ayww
2500 units Tape & Reel
aSC7512M8
8-lead MSOP
-40°C to +125°C, 3.3V
7512
Ayww
2500 units Tape & Reel
Ayww – Assembly site, year, workweek
1
2
3
4
5
6
7
8
GND
SMBCLK
SMBDAT
V
DD
D+
aSC7512
D-
PWM
TACH /
ALERT
相關(guān)PDF資料
PDF描述
ASC7521A LOW- OLTAGE 1-WIRE DIGITAL TEMPERATURE SENSOR
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ASC7521A 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LOW- OLTAGE 1-WIRE DIGITAL TEMPERATURE SENSOR
ASC7521AM8 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LOW- OLTAGE 1-WIRE DIGITAL TEMPERATURE SENSOR
ASC7531A 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LOW-VOLTAGE 1-WIRE DIGITAL TEMPERATURE SENSOR AND VOLTAGE MONITOR
ASC7531AM10 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LOW-VOLTAGE 1-WIRE DIGITAL TEMPERATURE SENSOR AND VOLTAGE MONITOR
ASC7531B 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LOW-VOLTAGE 1-WIRE DIGITAL TEMPERATURE SENSOR AND VOLTAGE MONITOR
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