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数据: TMP451 具有 η 因子和偏移校正、串联电阻抵消和可编程数字滤波器功能的 ±1°C 远程和本地温度传感器 数据表 (Rev. A)
这个远程温度传感器通常采用低成本离散式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 。对于本地和远程温度传感器,在典型运行范围内,温度精度为±1°C(最大值)。此两线制串口接受SMBus通信协议。
诸如串联电阻抵消,可编程非线性因子(η因子),可编程偏移,可编程温度限制和一个可编程数字滤波器等的高级特性被组合在一起以提供一个具有更佳准确度和抗扰度的稳健耐用热度监控解决方案方案。
TMP451器件适用于多个位置和多种汽车子系统中的高精度温度测量。此器件的额定运行电源电压范围为1 .7V至3.6V,额定工作温度范围为-40°C至125°C。
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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) |
TMP451 | TMP411 | TMP421 | TMP422 | TMP423 | TMP461 |
---|---|---|---|---|---|
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 |
40 | 30 | 38 | 38 | 38 | 375 |
Dynamic Averaging Programmable Alert Shutdown |
Programmable Alert Shutdown |
Shutdown | Shutdown | Shutdown |
Programmable Alert Remote diode fault detection |
Catalog | Catalog | Catalog | Catalog | Catalog | Catalog |
WSON |
SOIC VSSOP |
DSBGA SOT-23 |
SOT-23 | SOT-23 | QFN |
See datasheet (WSON) |
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) | 10QFN: 4 mm2: 2 x 2(QFN) |
35 | 400 | 400 | 400 | 400 | |