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这个远程温度传感器通常采用低成本分立式NPN或PNP晶体管,或者基板热晶体管或二极管,这些器件都是微处理器,微控制器或现场可编程门阵列(FPGA)的组成部件。本地和远程传感器均用12位数字编码表示温度,分辨率为0.0625°C。此两线制串口接受SMBus通信协议,以及多达9个不同的引脚可编程地址。
该器件将诸如串联电阻抵消,可编程非理想性因子(η因子),可编程偏移,可编程温度限制和可编程数字滤波器等高级特性完美结合,提供了一套准确度和抗扰度更高且稳健耐用的温度监控解决方案。
TMP461非常适合各类通信,计算,仪器仪表和工业应用中的多位置,高精度温度测量。该器件的额定电源电压范围为1.7V至3.6 V,额定工作温度范围为-40°C至125°C。
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) |
TMP461 | TMP411 | TMP421 | TMP422 | TMP423 | TMP451 |
---|---|---|---|---|---|
I2C SMBus |
I2C SMBus |
I2C SMBus |
I2C SMBus |
I2C SMBus |
I2C SMBus |
1 | 2.5 | 2.5 | 2.5 | 2.5 | 1 |
12 | 12 | 12 | 12 | 12 | 12 |
-40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 |
1.7 | 2.7 | 2.7 | 2.7 | 2.7 | 1.7 |
3.6 | 5.5 | 5.5 | 5.5 | 5.5 | 3.6 |
35 | 400 | 400 | 400 | 400 | 35 |
375 | 30 | 38 | 38 | 38 | 40 |
Programmable Alert Remote diode fault detection |
Programmable Alert Shutdown |
Shutdown | Shutdown | Shutdown |
Dynamic Averaging Programmable Alert Shutdown |
Catalog | Catalog | Catalog | Catalog | Catalog | Catalog |
QFN |
SOIC VSSOP |
DSBGA SOT-23 |
SOT-23 | SOT-23 | WSON |
10QFN: 4 mm2: 2 x 2(QFN) |
8SOIC: 29 mm2: 6 x 4.9(SOIC) 8VSSOP: 15 mm2: 4.9 x 3(VSSOP) |
See datasheet (DSBGA) 8SOT-23: 8 mm2: 2.8 x 2.9(SOT-23) |
8SOT-23: 8 mm2: 2.8 x 2.9(SOT-23) | 8SOT-23: 8 mm2: 2.8 x 2.9(SOT-23) | See datasheet (WSON) |
400 | 400 | 400 | 400 | 35 | |