The LM95235 is an 11-bit digital temperature sensor with a 2-wire System Management Bus (SMBus) interface and TruTherm technology that can monitor the temperature of a remote diode as well as its own temperature. The LM95235 can be used to very accurately monitor the temperature of external devices such as microprocessors, graphics processors, or a diode-connected MMBT3904 transistor. For automotive applications the LM95235Q is available that is AEC-Q100 Grade3 compliant and is manufactured on an Automotive Grade Flow. TruTherm BJT (transistor) beta compensation technology allows the LM95235 to precisely monitor thermal diodes found in 90 nm and smaller geometry processes. LM95235 reports temperature in two different formats for +127.875°C/-128°C range and 0°C/255°C range. The LM95235 T_CRIT and OS outputs are asserted when either unmasked channel exceeds its programmed limit and can be used to shutdown the system, to turn on the system fans, or as a microcontroller interrupt function. The current status of the T_CRIT and OS pins can be read back from the status registers via the SMBus interface. All limits have a shared programmable hysteresis register.

The remote temperature channel of the LM95235 has a programmable digital filter. The LM95235 contains a diode model selection bit to select between a typical Intel® processor on a 65 nm or 90 nm process or MMBT3904, as well as an offset register for maximum flexibility and best accuracy.

The LM95235 has a three-level address pin to connect up to 3 devices to the same SMBus master, that is shared with the OS output. The LM95235 has a programmable conversion rate register and a standby mode to save power. One conversion can be triggered in standby mode by writing to the one-shot register.

• Remote and Local Temperature Channels
• TruTherm BJT Beta Compensation Technology
• LM95235Q is AEC-Q100 Grade 3 Compliant and is Manufactured on an Automotive Grade Flow
• Diode Model Selection Bit - MMBT3904 or 65/90-nm Processor Diodes
• Two Formats: -128°C to 127.875°C and 0°C to 255.875°C
• Digital Filter for Remote Channel
• Programmable TCRIT and OS Thresholds
• Programmable Shared Hysteresis Register
• Diode Fault Detection
• Mask, Offset, and Status Registers
• SMBus 2.0 Compatible Interface, Supports TIMEOUT
• Programmable Conversion Rate for Best Power Consumption
• Three-Level Address Pin
• Standby Mode One-Shot Conversion Control
• Pin-for-Pin Compatible With the LM86 and LM89
• 8-Pin VSSOP Package

Key Specifications

• Supply Voltage 3.0 to 3.6 V
• Supply Current, Conv. Rate = 1 Hz 350 μA (typ)
• Remote Diode Temperature Accuracy
  • TA = 25°C to 85°C; TD = 60°C to 100°C, ±0.75 °C (max)
  • TA = 25°C to 90°C; TD = 40°C to 125°C, ±1.5 °C (max)
• Local Temperature Accuracy
  • TA = 25°C to 100°C, ±2.0 °C (max)
• Conversion Rate, Both Channels 16 to 0.4 Hz

All trademarks are the property of their respective owners.

• Local sensor accuracy (Max) (+/- C)
• 2
• Type
• Remote
• Operating temperature range (C)
• -40 to 90, 0 to 90
• Supply voltage (Min) (V)
• 3
• Interface type
• I2C, SMBus
• Supply voltage (Max) (V)
• 5.5
• Supply current (Max) (uA)
• 650
• Temp resolution (Max) (bits)
• 11
• Features
• One-shot conversion, ALERT
• Remote channels (#)
• 1
• Addresses
• 3
• Rating
• Catalog

LM95235的完整型号有：LM95235CIMM/NOPB、LM95235CIMMX/NOPB、LM95235DIMM/NOPB、LM95235DIMMX/NOPB、LM95235EIMM/NOPB，以下是这些产品的关键参数及官网采购报价：

LM95235CIMM/NOPB，工作温度：0 to 90，封装：VSSOP (DGK)-8，包装数量MPQ：1000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SN，TI官网LM95235CIMM/NOPB的批量USD价格：1.043（1000+）

LM95235CIMMX/NOPB，工作温度：0 to 90，封装：VSSOP (DGK)-8，包装数量MPQ：3500个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SN，TI官网LM95235CIMMX/NOPB的批量USD价格：.869（1000+）

LM95235DIMM/NOPB，工作温度：-40 to 90，封装：VSSOP (DGK)-8，包装数量MPQ：1000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SN，TI官网LM95235DIMM/NOPB的批量USD价格：1.521（1000+）

LM95235DIMMX/NOPB，工作温度：-40 to 90，封装：VSSOP (DGK)-8，包装数量MPQ：3500个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SN，TI官网LM95235DIMMX/NOPB的批量USD价格：1.347（1000+）

LM95235EIMM/NOPB，工作温度：-40 to 90，封装：VSSOP (DGK)-8，包装数量MPQ：1000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SN，TI官网LM95235EIMM/NOPB的批量USD价格：1.347（1000+）

DIGITALTEMPSENSORSEVM-SW — 用于硬件监控器和数字温度传感器的评估板软件

Evaluation Board Software for Hardware Monitors and Digital Temperature Sensors

LM95245SW-LINUX — 用于 LM95245 的 Linux 驱动程序

Linux 驱动程序支持 LM95245 系列远程和本地温度传感器。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：

• lm95235
• lm95245

Linux 源文件

与该器件关联的文件为：

drivers/hwmon/lm95245.c

Documentation/hwmon/lm95245

源文件

drivers/hwmon/lm95245.c

其他文件

Documentation/hwmon/lm95245

启用驱动程序支持 使用“make (...)

SENSOREVAL — 用于硬件监控器和数字温度传感器的评估板软件

SensorEval
SensorEval 软件支持通过 USB 接口连接的 TI 最新温度传感器和硬件监控器评估板。此外，该软件还允许访问直接安装在支持 Intel 芯片组的主板上的传感器。

• 下载 SensorEval 软件和手册
• 为以下各项提供 Windows XP 支持：
  • USB 评估板（LM93 除外）
  • Intel ICHx 接口（ADCS9888、LM32、LM40、LM41、LM71、LM95010 和 LM95071 除外）
  • “无硬件”模式支持在没有任何硬件的情况下运行软件