參數(shù)資料
型號(hào): ADT7476AARQZ-REEL
廠商: ON Semiconductor
文件頁(yè)數(shù): 1/66頁(yè)
文件大小: 945K
描述: IC REMOTE THERMAL CTRLR 24-QSOP
產(chǎn)品變化通告: MFG CHG Notification ADI to ON Semi
標(biāo)準(zhǔn)包裝: 2,500
系列: dBCool®
功能: 風(fēng)扇控制,溫度監(jiān)控器
傳感器類(lèi)型: 內(nèi)部和外部
感應(yīng)溫度: -40°C ~ 125°C
精確度: ±2.5%
拓?fù)洌?/td> ADC,比較器,風(fēng)扇速度計(jì)數(shù)器,多路復(fù)用器,寄存器庫(kù)
輸出類(lèi)型: SMBus?
輸出警報(bào): 無(wú)
輸出風(fēng)扇:
電源電壓: 3 V ~ 3.6 V
工作溫度: -40°C ~ 125°C
安裝類(lèi)型: 表面貼裝
封裝/外殼: 24-SSOP(0.154",3.90mm 寬)
供應(yīng)商設(shè)備封裝: 24-QSOP
包裝: 帶卷 (TR)
?Semiconductor Components Industries, LLC, 2012
July, 2012  Rev. 5
1
Publication Order Number:
ADT7476A/D
ADT7476A
Remote Thermal Controller
and Voltage Monitor
The ADT7476A controller is a thermal monitor and multiple PWM
fan controller for noise-sensitive or power-sensitive applications
requiring active system cooling. The ADT7476A 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 systems thermal
solution can be monitored using the THERM
 input. The ADT7476A
also provides critical thermal protection to the system using the
bidirectional THERM
  pin as an output to prevent system or
component overheating.
Features
?SPAN class="pst ADT7476AARQZ-R_2298076_4"> Monitors Up to Five Voltages
?SPAN class="pst ADT7476AARQZ-R_2298076_4"> Improved TACH and PWM Performance
?SPAN class="pst ADT7476AARQZ-R_2298076_4"> Controls and Monitors Up to Four Fans
?SPAN class="pst ADT7476AARQZ-R_2298076_4"> High and Low Frequency Fan Drive Signal
?SPAN class="pst ADT7476AARQZ-R_2298076_4"> One On-Chip and Two Remote Temperature Sensors
?SPAN class="pst ADT7476AARQZ-R_2298076_4"> Extended Temperature Measurement Range Up to 191?/SPAN>C
?SPAN class="pst ADT7476AARQZ-R_2298076_4"> Automatic Fan Speed Control Mode Controls System Cooling Based
on Measured Temperature
?SPAN class="pst ADT7476AARQZ-R_2298076_4"> Enhanced Acoustic Mode Dramatically Reduces User Perception of
Changing Fan Speeds
?SPAN class="pst ADT7476AARQZ-R_2298076_4"> Thermal Protection Feature via THERM
 Output
?SPAN class="pst ADT7476AARQZ-R_2298076_4"> Monitors Performance Impact of Intel
?/DIV>
Pentium
?/DIV>
4 Processor
?SPAN class="pst ADT7476AARQZ-R_2298076_4"> Thermal Control Circuit via THERM
 Input
?SPAN class="pst ADT7476AARQZ-R_2298076_4"> 3-wire and 4-wire Fan Speed Measurement
?SPAN class="pst ADT7476AARQZ-R_2298076_4"> Limit Comparison of All Monitored Values
?SPAN class="pst ADT7476AARQZ-R_2298076_4"> 5.0 V Support on all TACH and PWM Channels
?SPAN class="pst ADT7476AARQZ-R_2298076_4"> Meets SMBus 2.0 Electrical Specifications
?SPAN class="pst ADT7476AARQZ-R_2298076_4"> This Device is Pb-Free, Halogen Free and is RoHS Compliant
http://onsemi.com
PIN ASSIGNMENT
See detailed ordering and shipping information in the package
dimensions section on page 65 of this data sheet.
ORDERING INFORMATION
MARKING DIAGRAMS
QSOP24 NB
CASE 492B
+2.5V
IN
/THERM
PWM1/XTO
V
CCP
+12V
IN
/VID5
+5V
IN
D1+
*TACH4/THERM
/SMBALERT
/GPIO6/ADDR SELECT
VID4/GPIO4
SDA
SCL
GND
V
CC
VID0/GPIO0
VID1/GPIO1
VID2/GPIO2
PWM2/
SMBALERT
24
23
22
21
20
19
18
17
8
7
6
5
4
3
2
1
ADT7476A
16
9
15
10
14
11
13
12
VID3/GPIO3
TACH3
TACH1
TACH2
D1
D2+
D2
PWM3/ADDREN
*
(Top View)
ADT7476AARQZ = Specific Device Code
#
= Pb-Free Package
YYWW
= Date Code
xxxx
= Assembly Lot Code
ADT7476AARQZ
#YYWW
xxxx
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ADT7476AARQZ-REEL7 功能描述:IC REMOTE THERMAL CTRLR 24-QSOP RoHS:是 類(lèi)別:集成電路 (IC) >> PMIC - 熱管理 系列:dBCool® 標(biāo)準(zhǔn)包裝:1 系列:- 功能:溫度監(jiān)控系統(tǒng)(傳感器) 傳感器類(lèi)型:內(nèi)部和外部 感應(yīng)溫度:-40°C ~ 125°C,外部傳感器 精確度:±2.5°C 本地(最大值),±5°C 遠(yuǎn)程(最大值) 拓?fù)?ADC,比較器,寄存器庫(kù) 輸出類(lèi)型:2 線 SMBus? 輸出警報(bào):無(wú) 輸出風(fēng)扇:無(wú) 電源電壓:2.7 V ~ 5.5 V 工作溫度:-40°C ~ 125°C 安裝類(lèi)型:表面貼裝 封裝/外殼:SOT-23-8 供應(yīng)商設(shè)備封裝:SOT-23-8 包裝:Digi-Reel® 其它名稱(chēng):296-22675-6
ADT7476AARQZ-RL7 功能描述:板上安裝溫度傳感器 MONITORS 5V/4 FANS RoHS:否 制造商:Omron Electronics 輸出類(lèi)型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor
ADT7476ARQH 制造商:ONSEMI 制造商全稱(chēng):ON Semiconductor 功能描述:dBCOOL Remote Thermal Controller and Voltage Monitor
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