TMP421 采用 SOT23-8 封装的 +/-1degC 远程和本地温度传感器
The TMP421, TMP422, and TMP423 are remote temperature sensor monitors with a built-in local temperature sensor. The remote temperature sensor diode-connected transistors are typically low-cost, NPN- or PNP-type transistors or diodes that are an integral part of microcontrollers, microprocessors, or FPGAs.
Remote accuracy is ±1°C for multiple IC manufacturers, with no calibration needed. The two-wire serial interface accepts SMBus write byte, read byte, send byte, and receive byte commands to configure the device.
The TMP421, TMP422, and TMP423 include series resistance cancellation, porgrammable non-ideality factor, wide remote temperature measurment range (up to +150°C), and diode fault detection
|
TMP421 |
TMP422 |
TMP423 |
| Interface |
I2C, SMBus |
I2C, SMBus |
I2C, SMBus |
| Temp Resolution (Max) (bits) |
12 |
12 |
12 |
| Supply Voltage (Min) (V) |
2.7 |
2.7 |
2.7 |
| Supply Voltage (Max) (V) |
5.5 |
5.5 |
5.5 |
| Iq (Typ) (uA) |
400 |
400 |
400 |
| Rating |
Catalog |
Catalog |
Catalog |
| Remote Channel |
1 |
2 |
3 |
| Sensor Type |
Remote + Local |
Remote + Local |
Remote + Local |
| Remote Sensor Correction |
n-Factor Correction,Series Resistance Cancellation |
n-Factor Correction,Series Resistance Cancellation |
n-Factor Correction,Series Resistance Cancellation |
| Remote Sensor Accuracy (Max) (+/- C) |
1 |
1 |
1 |
| Local Sensor Accuracy (Max) (+/- C) |
1.5 |
1.5 |
1.5 |
| Operating Temperature Range (C) |
-40 to 125 |
-40 to 125 |
-40 to 125 |
| Pin/Package |
8SOT-23 |
8SOT-23 |
8SOT-23 |
TMP421 特性
- SOT23-8 PACKAGE
- ±1°C REMOTE DIODE SENSOR (MAX)
- ±1.5°C LOCAL TEMPERATURE SENSOR (MAX)
- SERIES RESISTANCE CANCELLATION
- n-FACTOR CORRECTION
- TWO-WIRE/SMBusTM SERIAL INTERFACE
- MULTIPLE INTERFACE ADDRESSES
- DIODE FAULT DETECTION
- RoHS COMPLIANT AND NO Sb/Br
- APPLICATIONS
- PROCESSOR/FPGATEMPERATURE MONITORING
- LCD/DLP(R)/LCOS PROJECTORS
- SERVERS
- CENTRAL OFFICE TELECOM EQUIPMENT
- STORAGE AREA NETWORKS (SAN)
TMP421 芯片订购指南
| 器件 |
状态 |
温度 |
价格 |
封装 | 引脚 |
封装数量 | 封装载体 |
丝印标记 |
| TMP421AIDCNR |
ACTIVE |
-40 to 125 |
0.55 | 1ku |
SOT-23 (DCN) | 8 |
3000 | LARGE T&R |
|
| TMP421AIDCNRG4 |
ACTIVE |
-40 to 125 |
0.55 | 1ku |
SOT-23 (DCN) | 8 |
3000 | LARGE T&R |
|
| TMP421AIDCNT |
ACTIVE |
-40 to 125 |
0.65 | 1ku |
SOT-23 (DCN) | 8 |
250 | SMALL T&R |
|
| TMP421AIDCNTG4 |
ACTIVE |
-40 to 125 |
0.65 | 1ku |
SOT-23 (DCN) | 8 |
250 | SMALL T&R |
|
TMP421 质量与无铅数据
| 器件 |
环保计划* |
铅/焊球涂层 |
MSL 等级/回流焊峰 |
环保信息与无铅 (Pb-free) |
DPPM / MTBF / FIT 率 |
| TMP421AIDCNR |
Green (RoHS & no Sb/Br) |
CU NIPDAUAG |
Level-2-260C-1 YEAR |
TMP421AIDCNR |
TMP421AIDCNR |
| TMP421AIDCNRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAUAG |
Level-2-260C-1 YEAR |
TMP421AIDCNRG4 |
TMP421AIDCNRG4 |
| TMP421AIDCNT |
Green (RoHS & no Sb/Br) |
CU NIPDAUAG |
Level-2-260C-1 YEAR |
TMP421AIDCNT |
TMP421AIDCNT |
| TMP421AIDCNTG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAUAG |
Level-2-260C-1 YEAR |
TMP421AIDCNTG4 |
TMP421AIDCNTG4 |
TMP421 应用技术支持与电子电路设计开发资源下载
- TMP421 数据资料 dataSheet 下载.PDF
- TI 德州仪器温度传感器产品选型与价格 . xls
- 所选封装材料的热学和电学性质 (PDF 645 KB)
- 高速数据转换 (PDF 1967 KB)
- 使您的仪器放大器设计达到最佳效果 (zhct011.PDF, 897 KB)
- 低成本电流并联监视器 IC 使动圈式仪表设计复兴 (zhct030.PDF, 1.04 MB)
- Using the TMP421 with the TMP421 to Generate 4mA to 20mA Output (PDF 167 KB)
- 在 PSPICE 中使用德州仪器 (TI) SPICE 模型 (zhca088.HTM, 8 KB)
- PowerPADTM Thermally Enhanced Package (slma002g.HTM, 8 KB)
- 运算放大器的单电源操作 (PDF 2174 KB)
- Tuning in Amplifiers (PDF 44 KB)
- Op Amp Performance Analysis (PDF 76 KB)
- An Error Analysis of the ISO102 in a Small Signal Measuring Application (PDF 29 KB)
- Level Shifting Signals with Differential Amplifiers (PDF 23 KB)
- Operational Amplifier Macromodels: A Comparison (PDF 59 KB)
TMP421 工具与软件
| 培训内容 |
型号 |
软件/工具类型 |
| TMP421EVM 评估模块 |
TMP421EVM |
开发电路板/EVM |