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ADT7490ARQZ

更新时间： 2024-01-12 11:28:35
品牌 Logo 应用领域
亚德诺 - ADI 模拟IC风扇信号电路光电二极管监控控制器
页数 文件大小 规格书
76页 1623K
描述
dBCool Remote Thermal Monitor and Fan Controller with PECI Interface

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ADT7490ARQZ 技术参数

是否Rohs认证：符合生命周期：Transferred
零件包装代码：SSOP包装说明：SSOP, SSOP24,.24
针数：24Reach Compliance Code：unknown
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.04Is Samacsys：N
模拟集成电路 - 其他类型：ANALOG CIRCUITJESD-30 代码：R-PDSO-G24
JESD-609代码：e3长度：8.6614 mm
功能数量：1端子数量：24
最高工作温度：125 °C最低工作温度：-40 °C
封装主体材料：PLASTIC/EPOXY封装代码：SSOP
封装等效代码：SSOP24,.24封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, SHRINK PITCH峰值回流温度（摄氏度）：NOT SPECIFIED
电源：3.3 V认证状态：Not Qualified
座面最大高度：1.7526 mm子类别：Motion Control Electronics
最大供电电流 (Isup)：5 mA最大供电电压 (Vsup)：3.6 V
最小供电电压 (Vsup)：3 V标称供电电压 (Vsup)：3.3 V
表面贴装：YES温度等级：AUTOMOTIVE
端子形式：GULL WING端子节距：0.635 mm
端子位置：DUAL处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：3.9116 mmBase Number Matches：1

ADT7490ARQZ 数据手册

 浏览型号ADT7490ARQZ的Datasheet PDF文件第70页浏览型号ADT7490ARQZ的Datasheet PDF文件第71页浏览型号ADT7490ARQZ的Datasheet PDF文件第72页浏览型号ADT7490ARQZ的Datasheet PDF文件第74页浏览型号ADT7490ARQZ的Datasheet PDF文件第75页浏览型号ADT7490ARQZ的Datasheet PDF文件第76页 
ADT7490  
Table 87. Register 0x8E—Dynamic TMIN Control Register 1 (Power-On Default = 0x00)  
Bit No. Mnemonic R/W1  
Description  
[0]  
CYR2  
R/W  
MSB of 3-Bit Remote 2 Cycle Value. The other two bits of the code reside in the Dynamic TMIN Control  
Register 2 (0x8F). These three bits define the delay time between making subsequent TMIN  
adjustments in the control loop in terms of the number of monitoring cycles. The system has  
associated thermal time constants that need to be found to optimize the response of fans and the  
control loop.  
[1]  
VCCPLO  
R/W  
VCCPLO = 1. When the power is supplied from 3.3 V STANDBY and the core voltage (VCCP) drops below  
its VCCP low limit value (0x46), the following occurs:  
Status Bit 1 in Status Register 1 is set.  
SMBALERT is generated, if enabled.  
PROCHOT monitoring is disabled.  
Dynamic TMIN control is disabled.  
The device is prevented from entering shutdown.  
Everything is re-enabled once VCCP increases above the VCCP low limit.  
[2]  
[3]  
[4]  
PHTR1  
PHTL  
Read/write PHTR1 = 1 copies the Remote 1 current temperature to the Remote 1 operating point register if  
THERM is asserted. The operating point contains the temperature at which THERM is asserted,  
allowing the system to run as quietly as possible without affecting system performance.  
PHTR1 = 0 ignores any THERM assertions on the THERM pin. The Remote 1 operating point register  
reflects its programmed value.  
R/W  
R/W  
PHTL = 1 copies the local channel’s current temperature to the local operating point register if THERM  
is asserted. The operating point contains the temperature at which THERM is asserted. This allows the  
system to run as quietly as possible without affecting system performance.  
PHTL = 0 ignores any THERM assertions on the THERM pin. The local temperature operating point  
register reflects its programmed value.  
PHTR2 = 1 copies the Remote 2 current temperature to the Remote 2 operating point register if  
THERM is asserted. The operating point contains the temperature at which THERM is asserted,  
allowing the system to run as quietly as possible without affecting system performance.  
PHTR2  
PHTR2 = 0 ignores any THERM assertions on the THERM pin. The Remote 2 operating point register  
reflects its programmed value.  
[5]  
[6]  
[7]  
R1T  
LT  
R/W  
R/W  
R/W  
R1T = 1 enables dynamic TMIN control on the Remote 1 temperature channel. The chosen TMIN value is  
dynamically adjusted based on the current temperature, operating point, and high and low limits for  
this zone.  
R1T = 0 disables dynamic TMIN control. The TMIN value chosen is not adjusted, and the channel behaves  
as described in the Automatic Fan Control Overview section.  
LT = 1 enables dynamic TMIN control on the local temperature channel. The chosen TMIN value is  
dynamically adjusted based on the current temperature, operating point, and high and low limits for  
this zone.  
LT = 0 disables dynamic TMIN control. The TMIN value chosen is not adjusted, and the channel behaves  
as described in the Automatic Fan Control Overview section.  
R2T  
R2T = 1 enables dynamic TMIN control on the Remote 2 temperature channel. The chosen TMIN value is  
dynamically adjusted based on the current temperature, operating point, and high and low limits for  
this zone.  
R2T = 0 disables dynamic TMIN control. The TMIN value chosen is not adjusted, and the channel behaves  
as described in the Automatic Fan Control Overview section.  
1 This register becomes read-only when the Configuration Register 1 (0x40) LOCK bit is set to 1. Any subsequent attempts to write to this register fail.  
Rev. 0 | Page 73 of 76  
1...70717273747576

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