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ADT7490

更新时间: 2024-02-12 06:22:52
品牌 Logo 应用领域
亚德诺 - ADI 风扇监控控制器
页数 文件大小 规格书
76页 1623K
描述
dBCool Remote Thermal Monitor and Fan Controller with PECI Interface

ADT7490 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

ADT7490 数据手册

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ADT7490  
SPECIFICATIONS  
TA = TMIN to TMAX, VCC = VMIN to VMAX, unless otherwise noted. All voltages are measured with respect to GND, unless otherwise specified.  
Typical voltages are TA = 25°C and represent a parametric norm. Logic inputs accept input high voltages up to VMAX, even when the device  
is operating down to VMIN. Timing specifications are tested at logic levels of VIL = 0.8 V for a falling edge, and VIH = 2.0 V for a rising edge.  
Table 1.  
Parameter  
Min  
Typ  
Max  
Unit  
Test Conditions/Comments  
POWER SUPPLY  
Supply Voltage  
Supply Current, ICC  
3.0  
3.3  
1.5  
3.6  
5
V
mA  
Interface inactive, ADC active  
TEMPERATURE-TO-DIGITAL CONVERTER  
Local Sensor Accuracy  
0.5  
1.5  
2.5  
°C  
°C  
0°C ≤ TA ≤ 85°C  
−40°C ≤ TA ≤ +125°C  
Resolution  
Remote Diode Sensor Accuracy  
0.25  
0.5  
°C  
°C  
1.5  
2.5  
0°C ≤ TA ≤ 85°C  
°C  
−40°C ≤ TA ≤ +125°C  
Resolution  
Remote Sensor Source Current  
0.25  
12  
72  
°C  
μA  
μA  
μΑ  
kΩ  
Low level  
Mid level  
High level  
192  
Series Resistance Cancellation1  
1.5  
The ADT7490 cancels up to 2 kΩ in series  
with the remote thermal sensor  
ANALOG-TO-DIGITAL CONVERTER  
(INCLUDING MUX AND ATTENTUATORS)  
Total Unadjusted Error (TUE)  
2
1.5  
%
%
For all channels: −40°C ≤ TA ≤ +125°C  
For all other channels except +12VIN:  
0°C ≤ TA ≤ +125°C  
Differential Nonlinearity (DNL)  
Power Supply Sensitivity  
Conversion Times1  
1
LSB  
%/V  
8 bits  
0.1  
2
Voltage Inputs  
VTT Voltage Input2  
Local Temperature  
11  
12  
12  
38  
169  
19  
200  
100  
13  
14  
14  
43  
193  
ms  
ms  
ms  
ms  
ms  
ms  
kΩ  
kΩ  
Averaging enabled, all channels excluding VTT  
Averaging enabled  
Averaging enabled  
Averaging enabled  
Averaging enabled  
Averaging disabled  
For +12VIN channel  
For all other channels  
Remote Temperature  
Total Monitoring Cycle Time  
Input Resistance  
150  
70  
FAN RPM-TO-DIGITAL CONVERTER  
Accuracy  
10  
%
%
0°C ≤ TA ≤ 85°C  
14  
−40°C ≤ TA ≤ +125°C  
Full-Scale Count  
65,535  
Nominal Input RPM  
109  
329  
5000  
10,000  
RPM  
RPM  
RPM  
RPM  
Fan count = 0xBFFF  
Fan count = 0x3FFF  
Fan count = 0x0438  
Fan count = 0x021C  
OPEN-DRAIN DIGITAL OUTPUTS,  
PWM1 TO PWM3, XTO  
Current Sink, IOL  
Output Low Voltage, VOL  
High Level Output Current, IOH  
8.0  
0.4  
20  
mA  
V
μA  
IOUT = −8.0 mA  
VOUT = VCC  
0.1  
Rev. 0 | Page 4 of 76  
 

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