参数资料
型号: ADT7475EBZEVB
厂商: ON Semiconductor
文件页数: 1/58页
文件大小: 0K
描述: BOARD EVALUATION FOR ADT7475
产品变化通告: MFG CHG Notification ADI to ON Semi
标准包装: 1
系列: dBCool®
类型: 温度传感器
适用于相关产品: ADT7475
所含物品: 评估板
其它名称: EVAL-ADT7475EB
EVAL-ADT7475EB-ND
ADT7475
Remote Thermal Monitor
and Fan Controller
The ADT7475 controller is a thermal monitor and multiple PWM
fan controller for noise-sensitive or power-sensitive applications
requiring active system cooling. The ADT7475 can drive a fan using
either a low or high frequency drive signal, monitor the temperature of
up to two remote sensor diodes plus its own internal temperature, and
measure and control the speed of up to four fans so that they operate at
the lowest possible speed for minimum acoustic noise.
The automatic fan speed control loop optimizes fan speed for a
given temperature. The effectiveness of the system’s thermal solution
can be monitored using the THERM input. The ADT7475 also
provides critical thermal protection to the system using the
bidirectional THERM pin as an output to prevent system or
component overheating.
http://onsemi.com
QSOP ? 16
CASE 492
PIN ASSIGNMENT
Features
SCL
1
16
SDA
ADT7475
(Top View)
D1 ?
PWM2/
SMBALERT
?
?
?
?
?
?
?
?
?
?
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?
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Controls and Monitors Up to 4 Fans
High and Low Frequency Fan Drive Signal
1 On-Chip and 2 Remote Temperature Sensors
Extended Temperature Measurement Range, Up to 191 ° C
Automatic Fan Speed Control Mode Controls System Cooling Based
on Measured Temperature
Enhanced Acoustic Mode Dramatically Reduces User Perception of
Changing Fan Speeds
Thermal Protection Feature via THERM Output
Monitors Performance Impact of Intel ? Pentium ? 4 Processor
Thermal Control Circuit via THERM Input
3-wire and 4-wire Fan Speed Measurement
Limit Comparison of All Monitored Values
Meets SMBus 2.0 Electrical Specifications
(Fully SMBus 1.1 Compliant)
These Devices are Pb-Free, Halogen Free/BFR Free and are RoHS
Compliant
GND 2 15 PWM1/XTO
V CC 3 14 V CCP
TACH3 4 13 D1+
5 12
TACH1 6 11 D2+
TACH2 7 10 D2 ?
PWM3 8 9 TACH4/GPIO/
THERM/
SMBALERT
MARKING DIAGRAM
ADT7475
ARQZ
#YYWW
ADT7475ARQZ
= Specific Device Code
#
= Pb-Free Package
YYWW
= Date Code
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 57 of this data sheet.
? Semiconductor Components Industries, LLC, 2013
August, 2018 ? Rev. 8
1
Publication Order Number:
ADT7475/D
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