参数资料
型号: ADT7481ARMZ-R7
厂商: ON Semiconductor
文件页数: 2/20页
文件大小: 237K
描述: IC TEMP SENSOR 2CH ALARM 10MSOP
产品变化通告: MFG CHG Notification ADI to ON Semi
Product Discontinuation 30/Sept/2011
标准包装: 1,000
功能: 温度监控系统(传感器)
传感器类型: 内部和外部
感应温度: -40°C ~ 120°C,外部传感器
精确度: ±2.5°C(最小值)
拓扑: ADC,比较器,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 ~ 120°C
安装类型: 表面贴装
封装/外壳: 10-TFSOP,10-MSOP(0.118",3.00mm 宽)
供应商设备封装: 10-MSOP
包装: 带卷 (TR)
ADT7481
http://onsemi.com
2
Figure 1. Functional Block Diagram
ON-CHIP
TEMPERATURE
SENSOR
ANALOG
MUX
BUSY
11-BIT A-TO-D
CONVERTER
LOCAL TEMPERATURE
VALUE REGISTER
REMOTE 1 AND 2 TEMP
OFFSET REGISTER
RUN/STANDBY
EXTERNAL DIODE OPEN-CIRCUIT
STATUS REGISTERS
SMBUS INTERFACE
INTERRUPT
MASKING
SDATA
SCLK
10
9
ONE-SHOT
REGISTER
CONVERSION RATE
REGISTER
LOCAL TEMPERATURE
THERM
 LIMIT REGISTER
LOCAL TEMPERATURE
LOW LIMIT REGISTER
LOCAL TEMPERATURE
HIGH LIMIT REGISTER
REMOTE 1 & 2 TEMP.
THERM
 LIMIT REG.
REMOTE 1 & 2 TEMP.
LOW LIMIT REGISTERS
REMOTE 1 & 2 TEMP.
HIGH LIMIT REGISTERS
CONFIGURATION
REGISTER
4
8
GND
5
V
DD
1
ADT7481
D1+
ALERT
/THERM2
THERM
2
D1
3
D2+
7
D2
6
REMOTE 1 AND 2 TEMP
VALUE REGISTER
ADDRESS POINTER
REGISTER
Table 1. ABSOLUTE MAXIMUM RATINGS
Parameter
Rating
Unit
Positive Supply Voltage (V
DD
) to GND
0.3 to +3.6
V
D+
0.3 to V
DD
 + 0.3
V
D to GND
0.3 to +0.6
V
SCLK, SDATA, ALERT
, THERM
0.3 to +3.6
V
Input Current, SDATA, THERM
1 to +50
mA
Input Current, D
?
mA
ESD Rating, All Pins (Human Body Model)
1,500
V
Maximum Junction Temperature (T
J
 
MAX
)
150
Storage Temperature Range
65 to +150
IR Reflow Peak Temperature
220
IR Reflow Peak Temperature for Pb-Free
260
Lead Temperature, Soldering (10 sec)
300
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
Package Type
q
JA
q
JC
Unit
10-lead MSOP
142
43.74
癈/W
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