产品详情

Local sensor accuracy (max) 3 Type Remote Operating temperature range (°C) -40 to 125 Supply voltage (min) (V) 3 Interface type I2C, SMBus Supply voltage (max) (V) 3.6 Features ALERT Supply current (max) (µA) 800 Temp resolution (max) (Bits) 8 Remote channels (#) 3 Addresses 9 Rating Catalog
Local sensor accuracy (max) 3 Type Remote Operating temperature range (°C) -40 to 125 Supply voltage (min) (V) 3 Interface type I2C, SMBus Supply voltage (max) (V) 3.6 Features ALERT Supply current (max) (µA) 800 Temp resolution (max) (Bits) 8 Remote channels (#) 3 Addresses 9 Rating Catalog
SSOP (DBQ) 16 29.4 mm² 4.9 x 6
  • 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)

  • 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.


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.


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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)。

驱动程序或库

LM83SW-LINUX — 用于 LM83 的 Linux 驱动程序

Linux 驱动程序支持 LM83 系列的系统硬件监测计。Linux 驱动程序支持通过 I2C 总线和接口与硬件监控子系统进行通信。
Linux 主线状态

在 Linux 主线中提供:是
可通过 git.ti.com 获取:不适用

支持的器件:
  • lm83
  • lm82
Linux 源文件

与该器件关联的文件为:

  1. drivers/hwmon/lm83.c
  2. Documentation/hwmon/lm83
源文件

drivers/hwmon/lm83.c

其他文件

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

包含信息:
  • 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
包含信息:
  • 制造厂地点
  • 封装厂地点

支持和培训

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