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数据: LM82 Remote Diode and Local Digital Temperature Sensor with Two-Wire Interface 数据表
LM82是一款数字温度传感器,带有2线串行接口,可使用Delta-Sigma模拟信号检测电压,从而检测远程二极管的温度带数字超温检测器的数字转换器。 LM82可以精确地检测其自身的温度以及外部设备的温度,例如奔腾II处理器或二极管连接的2N3904。只要芯片上有专用二极管(半导体结),就可以使用LM82检测任何ASIC的温度。使用SMBus接口,主机可以随时访问LM82的寄存器。当任何温度高于可编程比较器限值T_CRIT时,会激活 T_CRIT_A 输出。当任何温度高于其相应的可编程比较器HIGH限值时,会激活 INT 输出。
主机可以编程以及回读T_CRIT寄存器和2个T_HIGH寄存器的状态。三个状态逻辑输入允许两个引脚(ADD0,ADD1)为LM82选择多达9个SMBus地址位置。对于T_CRIT和所有T_HIGH,传感器的默认阈值为127°C。 LM82引脚和寄存器引脚兼容LM84,Maxim MAX1617和ADI公司ADM1021。
所有商标均为其各自所有者的财产。
Interface |
Local Sensor Accuracy (Max) (+/- C) |
Temp Resolution (Max) (bits) |
Operating Temperature Range (C) |
Supply Voltage (Min) (V) |
Supply Voltage (Max) (V) |
Supply Current (Typ) (uA) |
Supply Current (Max) (uA) |
Features |
Rating |
Package Group |
Package Size: mm2:W x L (PKG) |
Iq (Typ) (uA) |
LM82 | LM95213 | LM95214 | LM95235 | LM95235-Q1 |
---|---|---|---|---|
I2C SMBus |
I2C SMBus |
I2C SMBus |
I2C SMBus |
I2C SMBus |
3 | 2 | 2 | 2 | 2 |
8 | 11 | 11 | 11 | 11 |
-40 to 125 | -40 to 140 | -40 to 140 |
-40 to 90 0 to 90 |
-40 to 85 |
3 | 3 | 3 | 3 | 2.7 |
3.6 | 3.6 | 3.6 | 5.5 | 5.5 |
800 | 570 | 570 | 350 | 350 |
800 | 800 | 800 | 650 | 350 |
Programmable Alert Remote diode fault detection |
One shot conversion control Programmable Alert Programmable conversion rate Remote diode fault detection Shutdown Thermal diode input stage filtering |
One shot conversion control Programmable Alert Programmable conversion rate Remote diode fault detection Shutdown Thermal diode input stage filtering |
One shot conversion control Programmable Alert Programmable conversion rate Remote diode fault detection Shutdown Thermal diode input stage filtering |
One shot conversion control Programmable Alert Programmable conversion rate Remote diode fault detection Shutdown Thermal diode input stage filtering |
Catalog | Catalog | Catalog | Catalog | Automotive |
SSOP | WSON | WSON | VSSOP | VSSOP |
16SSOP: 29 mm2: 6 x 4.9(SSOP) | See datasheet (WSON) | See datasheet (WSON) | 8VSSOP: 15 mm2: 4.9 x 3(VSSOP) | 8VSSOP: 15 mm2: 4.9 x 3(VSSOP) |
800 | 570 | 570 | 350 | 350 |