参数资料
型号: ADT7476AARQZ
厂商: ON Semiconductor
文件页数: 3/66页
文件大小: 945K
描述: IC REMOTE THERM CTRLR 5V 24QSOP
产品变化通告: MFG CHG Notification ADI to ON Semi
QSOP 24ld Pkg (MSL) Change 17/Jun/2010
Product Discontinuation 30/Sept/2011
标准包装: 56
系列: dBCool®
功能: 风扇控制,温度监控器
传感器类型: 内部和外部
感应温度: -40°C ~ 125°C
精确度: ±2.5%
拓扑: ADC,比较器,风扇速度计数器,多路复用器,寄存器库
输出类型: SMBus?
输出警报:
输出风扇:
电源电压: 3 V ~ 3.6 V
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 24-SSOP(0.154",3.90mm 宽)
供应商设备封装: 24-QSOP
包装: 管件
产品目录页面: 1118 (CN2011-ZH PDF)
ADT7476A
http://onsemi.com
3
Table 1. ABSOLUTE MAXIMUM RATINGS
Parameter
Rating
Unit
Positive Supply Voltage (V
CC
)
3.6
V
Maximum Voltage on +12V
IN
 Pin
16
V
Maximum Voltage on +5.0V
IN
 Pin
6.25
V
Maximum Voltage on SDA, SCL, THERM
 (Pin 22) and GPIO15 Pins
3.6
V
Maximum Voltage on all Tach and PWM Pins
+5.5
V
Voltage on Remaining Input or Output Pins
0.3 to +4.2
V
Input Current at Any Pin
?
mA
Package Input Current
?0
mA
Maximum Junction Temperature (T
J
 
MAX
)
150
Storage Temperature Range
65 to +150
Lead Temperature, Soldering
IR Reflow Peak Temperature
Pb-Free Peak Temperature
Lead Temperature (Soldering, 10 sec)
220
260
300
ESD Rating
1,500
V
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
NOTE:   This device is ESD sensitive. Use standard ESD precautions when handling.
Table 2. THERMAL CHARACTERISTICS (Note 1)
Package Type
q
JA
q
JC
Unit
24-lead QSOP
122
31.25
癈/W
1.
JA
 is specified for the worst-case conditions, that is, a device soldered in a circuit board for surface-mount packages.
Table 3. ELECTRICAL CHARACTERISTICS  
(T
A
= T
MIN
 to T
MAX
, V
CC
= V
MIN
 to V
MAX
, unless otherwise noted) (Note 1)
Parameter
Conditions
Min
Typ
Max
Unit
Power Supply
Supply Voltage
3.0
3.3
3.6
V
Supply Current, I
CC
Interface Inactive, ADC Active
1.5
3.0
mA
Temperature-to-Digital Converter
Local Sensor Accuracy
Resolution
0癈 ?T
A
?85癈
40癈 ?T
A
?125癈



?.5

0.25
?.5
?.5

Remote Diode Sensor Accuracy
Resolution
0癈 ?T
A
 ?85癈
40癈 ?T
A
?125癈



?.5

0.25
?.5
?.5

Remote Sensor Source Current
Low Level
High Level


11
180


mA
Analog-to-Digital Converter (Including MUX and Attentuators)
Total Unadjusted Error (TUE)
For 12 V Channel
For All Other Channels




?
?.5
%
Differential Non-Linearity (DNL)
8 Bits


?
LSB
Power Supply Sensitivity

?.1

%/V
Conversion Time
Voltage Input
Local Temperature
Remote Temperature
Averaging Enabled




11
12
38




ms
Total Monitoring Cycle Time
Averaging Enabled
Averaging Disabled


145
19


ms
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