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參數資料
型號: ADT7476AARQZ-R
廠商: ON Semiconductor
文件頁數: 45/66頁
文件大?。?/td> 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:
輸出風扇:
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
ADT7476A
http://onsemi.com
45
Fan Sync
When two ADT7476As are used in a system, it is possible
to synchronize them so that one PWM channel from each
device can be effectively ORed together to create a PWM
output that reflects the maximum speed of the two ORed
PWMs. This ORed PWM can in turn be used to drive a
chassis fan.
Standby Mode
The ADT7476A has been specifically designed to
respond to the STBY supply. In computers that support S3
and S5 states, the core voltage of the processor is lowered in
these states. When monitoring THERM
, the THERM
 timer
should be disabled during these states.
When the V
CCP
 voltage drops below the V
CCP
 low limit,
the following occurs:
1. Status Bit 1 (V
CCP
) in Interrupt Status Register 1
is set.
2. SMBALERT
 is generated, if enabled.
3. THERM
 monitoring is disabled. The THERM
timer should hold its value prior to the S3 or S5
state.
Once the core voltage, V
CCP
, goes above the V
CCP
 low
limit, everything is re-enabled and the system resumes
normal operation.
XNOR Tree Test Mode
The ADT7476A includes an XNOR tree test mode. This
mode is useful for in-circuit test equipment at board-level
testing. By applying stimulus to the pins included in the
XNOR tree, it is possible to detect opens, or shorts, on the
system board.
The XNOR tree test is invoked by setting Bit 0 (XEN) of
the XNOR Tree Test Enable Register (0x6F).
Figure 66 shows the signals that are exercised in the
XNOR tree test mode.
Figure 66. XNOR Tree Test
TACH1
TACH2
TACH3
TACH4
PWM2
PWM3
PWM1/XTO
VID4
VID3
VID2
VID1
VID0
Power-On Default
When the ADT7476A is powered up, monitoring is off by
default and the PWM outputs go to 100%. All necessary
registers then need to be configured via the SMBus for the
appropriate functions to operate.
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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
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