LM83
- Accurately senses die temperature of 3 remote ICs, or diode junctions
- On-board local temperature sensing
- SMBus and I2C compatible interface, supports SMBus 1.1 TIMEOUT
- Two interrupt outputs: INT# and T_CRIT_A#
- Register readback capability
- 7 bit plus sign temperature data format, 1 °C resolution
- 2 address select pins allow connection of 9 LM83s on a single bus
Key Specifications
[Solid_Square] Supply Voltage | 3.0V to 3.6V |
[Solid_Square] Supply Current | 0.8mA (max) |
[Solid_Square] Local Temp Accuracy (includes quantization error) | |
0°C to +85°C | ±3.0°C (max) |
[Solid_Square] Remote Diode Temp Accuracy (includes quantization error) | |
+25°C to +100°C | ±3°C (max) |
0°C to +125°C | ±4°C (max) |
The LM83 is a digital temperature sensor with a 2 wire serial interface that senses the voltage and thus the temperature of three remote diodes using a Delta-Sigma analog-to-digital converter with a digital over-temperature detector. The LM83 accurately senses its own temperature as well as the temperature of three external devices, such as Pentium II® Processors or diode connected 2N3904s. The temperature of any ASIC can be detected using the LM83 as long as a dedicated diode (semiconductor junction) is available on the die. Using the SMBus interface a host can access the LM83's registers at any time. Activation of a T_CRIT_A# output occurs when any temperature is greater than a programmable comparator limit, T_CRIT. Activation of an INT# output occurs when any temperature is greater than its corresponding programmable comparator HIGH limit.
The host can program as well as read back the state of the T_CRIT register and the four T_HIGH registers. Three state logic inputs allow two pins (ADD0, ADD1) to select up to 9 SMBus address locations for the LM83. The sensor powers up with default thresholds of 127°C for T_CRIT and all T_HIGHs. The LM83 is pin for pin and register compatible with the LM84 as well as the Maxim MAX1617 and the Analog Devices ADM1021.
技术文档
类型 | 标题 | 下载最新的英语版本 | 日期 | |||
---|---|---|---|---|---|---|
* | 数据表 | Triple-Diode Input & Local Digital Temp Sensor w/Two-Wire Interface 数据表 (Rev. A) | 2004年 5月 3日 |
设计和开发
如需其他信息或资源,请点击以下任一标题进入详情页面查看(如有)。
LM83SW-LINUX — 用于 LM83 的 Linux 驱动程序
Linux 主线状态
在 Linux 主线中提供:是
可通过 git.ti.com 获取:不适用
- lm83
- lm82
与该器件关联的文件为:
- drivers/hwmon/lm83.c
- Documentation/hwmon/lm83
启用驱动程序支持
使用“make menuconfig”(也可以使用“make (...)
封装 | 引脚 | CAD 符号、封装和 3D 模型 |
---|---|---|
SSOP (DBQ) | 16 | Ultra Librarian |
订购和质量
- RoHS
- REACH
- 器件标识
- 引脚镀层/焊球材料
- MSL 等级/回流焊峰值温度
- MTBF/时基故障估算
- 材料成分
- 鉴定摘要
- 持续可靠性监测
- 制造厂地点
- 封装厂地点