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LM95235-Q1

現行

具 TruTherm™ 技術和 SMBus 的汽車級 ±2°C 遠端和本機溫度感測器

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LM95235-Q1

現行
產品規格表 立即訂購

產品詳細資料

Local sensor accuracy (max) 2 Type Remote Operating temperature range (°C) -40 to 85 Supply voltage (min) (V) 2.7 Interface type I2C, SMBus Supply voltage (max) (V) 5.5 Features ALERT, One-shot conversion Supply current (max) (µA) 350 Temp resolution (max) (Bits) 11 Remote channels (#) 1 Addresses 3 Rating Automotive
Local sensor accuracy (max) 2 Type Remote Operating temperature range (°C) -40 to 85 Supply voltage (min) (V) 2.7 Interface type I2C, SMBus Supply voltage (max) (V) 5.5 Features ALERT, One-shot conversion Supply current (max) (µA) 350 Temp resolution (max) (Bits) 11 Remote channels (#) 1 Addresses 3 Rating Automotive
VSSOP (DGK) 8 14.7 mm² 3 x 4.9
  • 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.

  • 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.

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.

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.
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類型 標題 日期
* Data sheet LM95235/235Q Precision Remote Diode Temp Sensor w/SMBus Intrface & TruTherm datasheet (Rev. F) 2013年 3月 22日
Technical article How to maximize powertrain efficiency and reliability with high-accuracy temperatu PDF | HTML 2021年 5月 10日
User guide LM95235EVAL User’s Guide 2012年 8月 24日

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LM63 — 具風扇控制的 1 個遠端與本機溫度感測器 LM64 — 具風扇控制與 5 個 GPIO 的 1 個遠端與本機溫度感測器 LM71 — 具 SPI 介面的 ±1.5°C 溫度感測器 LM71-Q1 — 具 SPI 介面的汽車級、±1.5°C 溫度感測器 LM73 — 具 I2C/SMBus 介面的 ±1°C 溫度感測器 LM86 — 具 SMBu 介面的 ±0.75°C 遠端和本機溫度感測器 LM89 — 具 SMBus 介面和 2 個匯流排分載位址的 ± 0.75 ° C 遠端和本機溫度感測器 LM90 — 具 SMBus 介面的遠端和本機溫度感測器 LM93 — 具硬體監控器和 16 個電源電壓監控器的 2 個遠端、1 個本機溫度感測器 LM95010 — 具 SensorPath 介面的 ±2°C 溫度感測器 LM95071 — 具 SPI 介面的 ±1°C 溫度感測器 LM95221 — 具 beta 補償和 SMBus、I2C 介面的 ±3°C 雙遠端和本機溫度感測器 LM95231 — 具 TruTherm™ 技術和 SMBus 介面的雙遠端和本機溫度感測器 LM95235 — 具 SMBus、beta 補償且適用 65/90nm 二極體的 ±0.75°C 遠端和本機溫度感測器 LM95235-Q1 — 具 TruTherm™ 技術和 SMBus 的汽車級 ±2°C 遠端和本機溫度感測器 LM96000 — 具風扇控制和 6 個電源電壓監控器的硬體監控器 LM96080 — 具風扇速度和電源電壓監控器的 1 個本機溫度感測器 LM96163 — 具 beta 補償和風扇控制的 1 個遠端與本機溫度感測器 LM99 — 具 TruTherm™ 技術和 SMBus 介面的遠端和本機溫度感測器
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產品
數位溫度感測器
LM63 — 具風扇控制的 1 個遠端與本機溫度感測器 LM64 — 具風扇控制與 5 個 GPIO 的 1 個遠端與本機溫度感測器 LM71 — 具 SPI 介面的 ±1.5°C 溫度感測器 LM71-Q1 — 具 SPI 介面的汽車級、±1.5°C 溫度感測器 LM73 — 具 I2C/SMBus 介面的 ±1°C 溫度感測器 LM75A — 2C 業界標準溫度感測器、I2C/SMBus 介面 LM86 — 具 SMBu 介面的 ±0.75°C 遠端和本機溫度感測器 LM89 — 具 SMBus 介面和 2 個匯流排分載位址的 ± 0.75 ° C 遠端和本機溫度感測器 LM90 — 具 SMBus 介面的遠端和本機溫度感測器 LM93 — 具硬體監控器和 16 個電源電壓監控器的 2 個遠端、1 個本機溫度感測器 LM95010 — 具 SensorPath 介面的 ±2°C 溫度感測器 LM95071 — 具 SPI 介面的 ±1°C 溫度感測器 LM95172-Q1 — 具 200°C 功能和 SPI 介面的汽車級 ±1°C 溫度感測器 LM95214 — 具 SMBus 介面的 ±2°C 四遠端和本機溫度感測器 LM95221 — 具 beta 補償和 SMBus、I2C 介面的 ±3°C 雙遠端和本機溫度感測器 LM95231 — 具 TruTherm™ 技術和 SMBus 介面的雙遠端和本機溫度感測器 LM95233 — 具 TruTherm™ 技術和 SMBus 介面的 ±2°C 雙遠端和本機溫度感測器 LM95234 — 具 TruTherm™ 技術和 SMBus 介面的 ±2°C 雙遠端和本機溫度感測器 LM95235 — 具 SMBus、beta 補償且適用 65/90nm 二極體的 ±0.75°C 遠端和本機溫度感測器 LM95235-Q1 — 具 TruTherm™ 技術和 SMBus 的汽車級 ±2°C 遠端和本機溫度感測器 LM95241 — 具 beta 補償和 SMBus、I2C 介面的 ±1.25°C 雙遠端和本機溫度感測器 LM95245 — 具 SMBus、beta 補償且適用 45nm 二極體的 ±0.75°C 遠端和本機溫度感測器 LM96000 — 具風扇控制和 6 個電源電壓監控器的硬體監控器 LM96080 — 具風扇速度和電源電壓監控器的 1 個本機溫度感測器 LM96163 — 具 beta 補償和風扇控制的 1 個遠端與本機溫度感測器 LM99 — 具 TruTherm™ 技術和 SMBus 介面的遠端和本機溫度感測器
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