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TMP421,TMP422和TMP423是带有内置本地温度传感器的远程温度传感器监视器。远程温度传感器二极管连接的晶体管通常是低成本,NPN或PNP型晶体管或二极管,是微控制器,微处理器或FPGA的组成部分。
远程精度为±1°C适用于多个IC制造商,无需校准。双线串行接口接受SMBus写字节,读字节,发送字节和接收字节命令来配置器件。
TMP421,TMP422和TMP423包括串联电阻消除,可编程非理想因子,远程温度测量范围广(最高+ 150°C)和二极管故障检测。
TMP421,TMP422和TMP423均采用SOT23-8封装。 TMP421C还提供DSBGA(WCSP)封装。
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) |
TMP423 | LM95234 | TMP411 | TMP421 | TMP422 | TMP451 | TMP461 | TMP468 |
---|---|---|---|---|---|---|---|
I2C SMBus |
I2C SMBus |
I2C SMBus |
I2C SMBus |
I2C SMBus |
I2C SMBus |
I2C SMBus |
I2C SMBus |
2.5 | 2 | 2.5 | 2.5 | 2.5 | 1 | 1 | 0.35 |
12 | 11 | 12 | 12 | 12 | 12 | 12 | 13 |
-40 to 125 | -40 to 140 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 |
2.7 | 2.7 | 2.7 | 2.7 | 2.7 | 1.7 | 1.7 | 1.7 |
5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 3.6 | 3.6 | 3.6 |
400 | 570 | 400 | 400 | 400 | 35 | 35 | 67 |
38 | 800 | 30 | 38 | 38 | 40 | 375 | 375 |
Shutdown |
One shot conversion control Programmable Alert Programmable conversion rate Remote diode fault detection Shutdown Thermal diode input stage filtering |
Programmable Alert Shutdown |
Shutdown | Shutdown |
Dynamic Averaging Programmable Alert Shutdown |
Programmable Alert Remote diode fault detection |
One shot conversion control Programmable Alert Programmable conversion rate Remote diode fault detection |
Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog |
SOT-23 | WSON |
SOIC VSSOP |
DSBGA SOT-23 |
SOT-23 | WSON | QFN |
DSBGA VQFN |
8SOT-23: 8 mm2: 2.8 x 2.9(SOT-23) | 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) | See datasheet (WSON) | 10QFN: 4 mm2: 2 x 2(QFN) |
See datasheet (DSBGA) 16VQFN: 9 mm2: 3 x 3(VQFN) |
400 | 570 | 400 | 400 | 400 | 35 | 67 | |