ADT7476ARQZ-R7 datasheet(1/67 Pages) ONSEMI

Part #	ADT7476ARQZ-R7

Description	dBCOOL Remote Thermal Controller and Voltage Monitor

PDF	67 Pages

Scroll/Zoom	100%

Manufacturer	ONSEMI [ON Semiconductor]

Direct Link	http://www.onsemi.com

Logo

1 / 67 page

May, 2010 − Rev. 6

1

Publication Order Number:

ADT7476/D

ADT7476

dBCOOLR Remote Thermal

Controller and Voltage

Monitor

The ADT7476 dBCOOL controller is a thermal monitor

and multiple PWM fan controller for noise−sensitive or

power−sensitive applications requiring active system cooling. The

ADT7476 can drive a fan using either a low or high frequency drive

signal and can monitor the temperature of up to two remote sensor

diodes plus its own internal temperature. The part also measures and

controls the speed of up to four fans, so the fans 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 ADT7476

also provides critical thermal protection to the system using the

bidirectional THERM pin as an output to prevent system or

component overheating.

Features

• Monitors Up to Five Voltages

• Controls and Monitors Up to Four Fans

• High and Low Frequency Fan Drive Signal

• One On−Chip and Two 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

• Pb−Free Package is Available

• Halide−Free Packages are Available

http://onsemi.com

PIN ASSIGNMENT

QSOP−24 NB

CASE 492B

XX

= Specific Device Code

#

= Pb−Free Package

YYWW = Date Code

xxxx

= Assembly Lot Code

See detailed ordering and shipping information in the package

dimensions section on page 66 of this data sheet.

ORDERING INFORMATION

MARKING DIAGRAMS

ADT7476RQZ

#YYWW

xxxx

+2.5VIN/THERM

PWM2/

SMBALERT

PWM3/ADDREN

1

2

3

4

5

6

7

8

20

21

22

23

24

19

18

17

14

13

12

11

SCL

GND

VCC

VID2/GPIO2

VID1/GPIO1

VID0/GPIO0

SDA

VCCP

+12VIN/VID5

D1+

VID4/GPIO4

+5VIN

VID3/GPIO3

TACH3

TACH2

TACH1

PWM1/XTO

ADT7476

TACH4/THERM/SMBALERT/

GPIO6/ADDR SELECT

9

10

16

15

D1−

D2+

D2−

Similar Part No. - ADT7476ARQZ-R7

Manufacturer	Part #	Datasheet	Description
Analog Devices	ADT7476ARQZ-REEL	1Mb / 72P	dBCool Remote Thermal Controller and Voltage Monitor 3/06-Rev. 0 to Rev. A
ON Semiconductor	ADT7476ARQZ-REEL	543Kb / 68P	Remote Thermal Controller and Voltage Monitor February, 2016 ??Rev. 10

More results

Similar Description - ADT7476ARQZ-R7

Manufacturer	Part #	Datasheet	Description
Analog Devices	ADT7466	1Mb / 48P	dBCool Remote Thermal Controller and Voltage Monitor 6/05-Revision 0
	ADM1027	1,008Kb / 56P	dBCOOL-TM Remote Thermal Controller and Voltage Monitor 3/03-Data Sheet changed from REV. 0 to REV. A.
	ADT7468	1,021Kb / 80P	dBCool??Remote Thermal Controller and Voltage Monitor 4/04-Revision 0
	ADT7476	1Mb / 72P	dBCool Remote Thermal Controller and Voltage Monitor 3/06-Rev. 0 to Rev. A
	ADT7467	1Mb / 80P	dBCool Remote Thermal Monitor and Fan Controller 4/04-Revision 0
	ADT7473	1Mb / 76P	dBCool Remote Thermal Monitor and Fan Controller 2/06-Rev. 0 to Rev. A.
	ADT7476A	1Mb / 72P	dBCool Remote Thermal Controller and Voltage Monitor 1/06-Revision 0
ON Semiconductor	ADM1027	1Mb / 56P	dBCOOL??Remote Thermal Controller and Voltage Monitor May 2010 - Rev. 3
	ADT7476A	613Kb / 67P	dBCOOL Remote Thermal Controller and Voltage Monitor May, 2010 ??Rev. 3
	ADT7475_1110	639Kb / 58P	dbCOOL Remote Thermal Monitor and Fan Controller October, 2011 ??Rev. 5

More results

ADT7476ARQZ-R7 Datasheet(PDF) 1 Page - ON Semiconductor

ADT7476ARQZ-R7 Datasheet(HTML) 1 Page - ON Semiconductor

Similar Part No. - ADT7476ARQZ-R7

Similar Description - ADT7476ARQZ-R7

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67

Datasheet Download

Link URL