LM95221 具有 SMBus 接口的双路远程二极管数字温度传感器
The LM95221 is a dual remote diode temperature sensor in an 8-lead MSOP package. The 2-wire serial interface of the LM95221 is compatible with SMBus 2.0. The LM95221 can sense three temperature zones, it can measure the temperature of its own die as well as two diode connected transistors. The diode connected transistors can be a thermal diode as found in Pentium and AMD processors or can simply be a diode connected MMBT3904 transistor. The LM95221 resolution format for remote temperature readings can be programmed to be 10-bits plus sign or 11-bits unsigned. In the unsigned mode the LM95221 remote diode readings can resolve temperatures above 127°C. Local temperature readings have a resolution of 9-bits plus sign.
|
LM95221 |
| Temp Resolution (Max) (bits) |
11 |
| Supply Voltage (Min) (V) |
3 |
| Supply Voltage (Max) (V) |
3.6 |
| Iq (Typ) (uA) |
2000 |
| Interface |
2-Wire Serial |
| Sensor Type |
Remote + Local |
| Remote Channel |
2 |
| Remote Sensor Accuracy (Max) (+/- C) |
1 |
| Local Sensor Accuracy (Max) (+/- C) |
3 |
| Pin/Package |
8VSSOP |
| Approx. Price (US$) |
1.05 | 1ku |
| Rating |
Catalog |
LM95221 特性
- Accurately senses die temperature of remote ICs or diode junctions
- Remote diode fault detection
- On-board local temperature sensing
- Remote temperature readings:
- 0.125 °C LSb
- 10-bits plus sign or 11-bits programmable resolution
- 11-bits resolves temperatures above 127 °C
- Local temperature readings:
- Status register support
- Programmable conversion rate allows user optimization of power consumption
- Shutdown mode one-shot conversion control
- SMBus 2.0 compatible interface, supports TIMEOUT
- 8-pin MSOP package
LM95221 器件用途
- Processor/Computer System Thermal Management (e.g. Laptop, Desktop, Workstations, Server)
- Electronic Test Equipment
- Office Electronics
LM95221 工具和软件
LM95221 应用手册
LM95221 应用技术支持与电子电路设计开发资源下载
- LM95221 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
