DataSheetWiki


ADT7473 fiches techniques PDF

ON Semiconductor - Remote Thermal Monitor and Fan Control

Numéro de référence ADT7473
Description Remote Thermal Monitor and Fan Control
Fabricant ON Semiconductor 
Logo ON Semiconductor 





1 Page

No Preview Available !





ADT7473 fiche technique
ADT7473
Remote Thermal Monitor
and Fan Control
The ADT7473/ADT7473−1 controller is a thermal monitor and
multiple PWM fan controller for noise sensitive or power sensitive
applications requiring active system cooling. The
ADT7473/ADT7473−1 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 they operate at the lowest
possible speed for minimum acoustic noise.
The automatic fan speed control loop optimizes fan speed for a
given temperature. A unique dynamic TMIN control mode enables the
system thermals/acoustics to be intelligently managed. The
effectiveness of the system’s thermal solution can be monitored using
the THERM input. The ADT7473/ADT7473−1 also provide critical
thermal protection to the system using the bidirectional THERM pin
as an output to prevent system or component overheating.
Features
Controls and Monitors Up to 4 Fans
High and Low Frequency Fan Drive Signal
1 On-Chip and 2 Remote Temperature Sensors
Series Resistance Cancellation on the Remote Channel
Extended Temperature Measurement Range, Up to 191°C
Dynamic TMIN Control Mode Intelligently Optimizes System
Acoustics
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
www.onsemi.com
QSOP−16
CASE 492
PIN ASSIGNMENTS
SCL 1
GND 2
VCC 3
TACH3
PWM2/
SMBALERT
TACH1
4
5
6
TACH2 7
PWM3 8
ADT7473
(Top View)
16 SDA
15 PWM1/XTO
14 VCCP
13 D1+
12 D1−
11 D2+
10 D2−
9 TACH4/GPIO/
THERM/
SMBALERT
SCL 1
GND 2
VCC
TACH3/
ADDR SELECT
PWM2/
THERM_LATCH
TACH1
3
4
5
6
TACH2 7
PWM3/ 8
ADDREN
16 SDA
15 PWM1/XTO
14 VCCP
ADT7473−1 13 D1+
(Top View) 12 D1−
11 D2+
10 D2−
9 TACH4/GPIO/
THERM/
SMBALERT
MARKING DIAGRAMS
ADT747
3ARQZ
#YYWW
ADT
7473−1
ARQZ
#YYWW
© Semiconductor Components Industries, LLC, 2015
April, 2015 − Rev. 10
ADT7473
ADT7473−1
ADT7473ARQZ = Specific Device Code
ADT7473−1ARQZ = Specific Device Code
# = Pb-Free Package
YYWW
= Date Code
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 72 of this data sheet.
1 Publication Order Number:
ADT7473/D

PagesPages 30
Télécharger [ ADT7473 ]


Fiche technique recommandé

No Description détaillée Fabricant
ADT7470 Temperature Sensor Hub and Fan Controller Analog Devices
Analog Devices
ADT7473 Remote Thermal Monitor and Fan Control ON Semiconductor
ON Semiconductor
ADT7473 dBCool Remote Thermal Monitor and Fan Controller Analog Devices
Analog Devices
ADT7475 Remote Thermal Monitor and Fan Controller ON Semiconductor
ON Semiconductor

US18650VTC5A

Lithium-Ion Battery

Sony
Sony
TSPC106

PCI Bus Bridge Memory Controller

ATMEL
ATMEL
TP9380

NPN SILICON RF POWER TRANSISTOR

Advanced Semiconductor
Advanced Semiconductor


www.DataSheetWiki.com    |   2020   |   Contactez-nous  |   Recherche