- 您現在的位置：買賣IC網 > Datasheet目錄39 > ADT7476AARQZ-R (ON Semiconductor)IC REMOTE THERMAL CTLR 24QSOP Datasheet資料下載
參數資料
| 型號： | ADT7476AARQZ-R |
| 廠商： | ON Semiconductor |
| 文件頁數： | 8/66頁 |
| 文件大小： | 945K |
| 描述： | IC REMOTE THERMAL CTLR 24QSOP |
| 產品變化通告： | MFG CHG Notification ADI to ON Semi QSOP 24ld Pkg (MSL) Change 17/Jun/2010 |
| 標準包裝： | 2,500 |
| 系列： | dBCool® |
| 功能： | 風扇控制，溫度監控器 |
| 傳感器類型： | 內部和外部 |
| 感應溫度： | -40°C ~ 125°C |
| 精確度： | ±2.5% |
| 拓撲： | ADC，比較器，風扇速度計數器，多路復用器，寄存器庫 |
| 輸出類型： | SMBus? |
| 輸出警報： | 無 |
| 輸出風扇： | 是 |
| 電源電壓： | 3 V ~ 3.6 V |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 24-SSOP（0.154"，3.90mm 寬） |
| 供應商設備封裝： | 24-QSOP |
| 包裝： | 帶卷 (TR) |
| 其它名稱： | ADT7476AARQZ-R-ND ADT7476AARQZ-ROSTR |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁當前第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁
ADT7476A
http://onsemi.com
8
Product Description
The ADT7476A is a complete thermal monitor and
multiple fan controller for any system requiring thermal
monitoring and cooling. The device communicates with the
system via a serial system management bus. The serial bus
controller has a serial data line for reading and writing
addresses and data (Pin 1), and an input line for the serial
clock (Pin 2). All control and programming functions for the
ADT7476A are performed over the serial bus. In addition,
a pin can be reconfigured as an SMBALERT
output to signal
out-of-limit conditions.
Feature Comparisons Between ADT7476A
and ADT7468
?SPAN class="pst ADT7476AARQZ-R_2298076_3"> Dynamic T
MIN
, dynamic operating point, and
associated registers are no longer available in the
ADT7476A. The following related registers are gone:
?SPAN class="pst ADT7476AARQZ-R_2298076_3"> Calibration Control 1 (0x36)
?SPAN class="pst ADT7476AARQZ-R_2298076_3"> Calibration Control 2 (0x37)
?SPAN class="pst ADT7476AARQZ-R_2298076_3"> Operating Point (0x33, 0x34, and 0x35)
?SPAN class="pst ADT7476AARQZ-R_2298076_3"> Previously (in the ADT7468), T
RANGE
defined the slope
of the automatic fan control algorithm. T
RANGE
now
defines a true temperature range (in the ADT7476A).
?SPAN class="pst ADT7476AARQZ-R_2298076_3"> Acoustic filtering is now assigned to temperature zones,
not to fans. Available smoothing times have been
increased for better acoustic performance.
?SPAN class="pst ADT7476AARQZ-R_2298076_3"> Temperature measurements are now made with two
switching currents instead of three. SRC is not available
in the ADT7476A.
?SPAN class="pst ADT7476AARQZ-R_2298076_3"> High frequency PWM can now be enabled/disabled on
each PWM output individually.
?SPAN class="pst ADT7476AARQZ-R_2298076_3"> THERM
can now be enabled/disabled on each
temperature channel individually.
?SPAN class="pst ADT7476AARQZ-R_2298076_3"> The ADT7476A does not support full shutdown mode.
?SPAN class="pst ADT7476AARQZ-R_2298076_3"> The ADT7476A offers increased temperature accuracy
on all temperature channels.
?SPAN class="pst ADT7476AARQZ-R_2298076_3"> The ADT7476A defaults to twos complement
temperature measurement mode.
?SPAN class="pst ADT7476AARQZ-R_2298076_3"> Some pins have swapped/added functions.
?SPAN class="pst ADT7476AARQZ-R_2298076_3"> The powerup routine for the ADT7476A is simplified.
?SPAN class="pst ADT7476AARQZ-R_2298076_3"> The ADT7476A has a higher maximum input voltage
TACH/PWM spec, supporting a wider range of fans.
?SPAN class="pst ADT7476AARQZ-R_2298076_3"> V
CORE_LOW_ENABLE
has been reallocated to Bit 7 of
Configuration Register 1 (0x40).
Recommended Implementation
Configuring the ADT7476A as shown in Figure 13 allows
the system designer to use the following features:
?SPAN class="pst ADT7476AARQZ-R_2298076_3"> Two PWM outputs for fan control of up to three fans
(the front and rear chassis fans are connected in
parallel).
?SPAN class="pst ADT7476AARQZ-R_2298076_3"> Three TACH fan speed measurement inputs.
?SPAN class="pst ADT7476AARQZ-R_2298076_3"> V
CC
measured internally through Pin 4.
?SPAN class="pst ADT7476AARQZ-R_2298076_3"> CPU temperature measured using Remote 1
temperature channel.
?SPAN class="pst ADT7476AARQZ-R_2298076_3"> Remote temperature zone measured through Remote 2
temperature channel.
?SPAN class="pst ADT7476AARQZ-R_2298076_3"> Local temperature zone measured through the internal
temperature channel.
?SPAN class="pst ADT7476AARQZ-R_2298076_3"> Bidirectional THERM
pin. This feature allows
Intel
?/DIV>
Pentium
?/DIV>
4 PROCHOT
monitoring and can
function as an overtemperature THERM
output. It can
alternatively be programmed as an SMBALERT
system
interrupt output.
Figure 13. ADT7476A Configuration
AMBIENT
TEMPERATURE
FRONT
CHASSIS
FAN
REAR
CHASSIS
FAN
ADT7476A
PWM1
SMBALERT
TACH2
PROCHOT
TACH1
GND
VID[0:4]/VID[0:5]
D2+
D2
THERM
SDA
SCL
TACH3
PWM3
D1
D1+
V
CC
+5V
IN
+12V
IN
/VID5
5(VRM9)/6(VRM10)
相關PDF資料 |
PDF描述 |
|---|---|
| ADT7481ARMZ-1RL | IC SENSOR TEMP 2CH ALARM 10MSOP |
| ADT7482ARMZ-REEL | IC SENSOR TEMP 2CH ALARM 10MSOP |
| ADT7485AARMZ-R | IC TEMP/VOLT DGL SENS SST 10MSOP |
| ADT7486AARMZ-RL | IC TEMP SENS DGTL 2CH SST 10MSOP |
| ADT7488AARMZ-RL | IC TEMP/VOLT DGTL W/SST 10MSOP |
相關代理商/技術參數 |
參數描述 |
|---|---|
| ADT7476AARQZ-REEL | 功能描述:IC REMOTE THERMAL CTRLR 24-QSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 熱管理 系列:dBCool® 標準包裝:1 系列:- 功能:溫度監控系統（傳感器） 傳感器類型:內部和外部 感應溫度:-40°C ~ 125°C，外部傳感器 精確度:±2.5°C 本地（最大值），±5°C 遠程（最大值） 拓撲:ADC，比較器，寄存器庫 輸出類型:2 線 SMBus? 輸出警報:無 輸出風扇:無 電源電壓:2.7 V ~ 5.5 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-8 供應商設備封裝:SOT-23-8 包裝:Digi-Reel® 其它名稱:296-22675-6 |
| ADT7476AARQZ-REEL7 | 功能描述:IC REMOTE THERMAL CTRLR 24-QSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 熱管理 系列:dBCool® 標準包裝:1 系列:- 功能:溫度監控系統（傳感器） 傳感器類型:內部和外部 感應溫度:-40°C ~ 125°C，外部傳感器 精確度:±2.5°C 本地（最大值），±5°C 遠程（最大值） 拓撲:ADC，比較器，寄存器庫 輸出類型:2 線 SMBus? 輸出警報:無 輸出風扇:無 電源電壓:2.7 V ~ 5.5 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-8 供應商設備封裝:SOT-23-8 包裝:Digi-Reel® 其它名稱: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 輸出類型:Digital 配置: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數字輸出 - 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 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor |
| ADT7476ARQH | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:dBCOOL Remote Thermal Controller and Voltage Monitor |
| ADT7476ARQH-REEL | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:dBCOOL Remote Thermal Controller and Voltage Monitor |
發布緊急采購，3分鐘左右您將得到回復。