LM95235中文资料具有 SMBus 接口、采用 β 补偿技术、适用于 65/90nm 处理器二极管的 ±0.75°C 远程和本地温度传感器数据手册TI规格书

描述 Description

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.

特性 Features

• Remote and Local Temperature Channels
• LM95235Q is AEC-Q100 Grade 3 Compliant and is Manufactured on an Automotive Grade Flow
• Two Formats: -128°C to 127.875°C and 0°C to 255.875°C
• Programmable TCRIT and OS Thresholds
• Diode Fault Detection
• SMBus 2.0 Compatible Interface, Supports TIMEOUT
• Three-Level Address Pin
• Pin-for-Pin Compatible With the LM86 and LM89
• Supply Voltage 3.0 to 3.6 V
• Remote Diode Temperature Accuracy
• TA = 25°C to 90°C; TD = 40°C to 125°C, ±1.5 °C (max)
• Local Temperature Accuracy
• Conversion Rate, Both Channels 16 to 0.4 Hz

简介

LM95235属于传感器变送器的温度传感器-模拟数字输出。由TI制造生产的LM95235温度传感器 - 模拟和数字输出模拟和数字输出温度传感器可用于测量环境热能量。特征包括传感器类型、本地感测温度、远程感测温度、输出类型、电源电压和分辨率。传感器类型为模拟本地/远程/红外、模拟数字、本地/远程、数字本地/远程/红外或内部，感应温度范围为 -55°C 至 200°C。