產品詳細資料

Local sensor accuracy (max) 2.7 Operating temperature range (°C) -50 to 150 Supply voltage (min) (V) 2.7 Supply voltage (max) (V) 5.5 Supply current (max) (µA) 8.1 Interface type Analog output Sensor gain (mV/°C) -13.6 Rating Catalog Features Industry standard pinout
Local sensor accuracy (max) 2.7 Operating temperature range (°C) -50 to 150 Supply voltage (min) (V) 2.7 Supply voltage (max) (V) 5.5 Supply current (max) (µA) 8.1 Interface type Analog output Sensor gain (mV/°C) -13.6 Rating Catalog Features Industry standard pinout
SOT-SC70 (DCK) 5 4.2 mm² 2 x 2.1 TO-92 (LP) 3 19.136 mm² 5.2 x 3.68 TO-92 (LPG) 3 6.08 mm² 4 x 1.52
  • LMT87LPG (TO-92S package) has a Fast Thermal Time Constant, 10-s Typical (1.2 m/s Airflow)
  • Very Accurate: ±0.4°C Typical
  • Low 2.7-V Operation
  • Average Sensor Gain of -13.6 mV/°C
  • Low 5.4-µA Quiescent Current
  • Wide Temperature Range: –50°C to 150°C
  • Output is Short-Circuit Protected
  • Push-Pull Output With ±50-µA Drive Capability
  • Footprint Compatible With the Industry-Standard LM20/19 and LM35 Temperature Sensors
  • Cost-Effective Alternative to Thermistors
  • LMT87LPG (TO-92S package) has a Fast Thermal Time Constant, 10-s Typical (1.2 m/s Airflow)
  • Very Accurate: ±0.4°C Typical
  • Low 2.7-V Operation
  • Average Sensor Gain of -13.6 mV/°C
  • Low 5.4-µA Quiescent Current
  • Wide Temperature Range: –50°C to 150°C
  • Output is Short-Circuit Protected
  • Push-Pull Output With ±50-µA Drive Capability
  • Footprint Compatible With the Industry-Standard LM20/19 and LM35 Temperature Sensors
  • Cost-Effective Alternative to Thermistors

The LMT87 device is a precision CMOS temperature sensor with ±0.4°C typical accuracy (±2.7°C maximum) and a linear analog output voltage that is inversely proportional to temperature. The 2.7-V supply voltage operation, 5.4-µA quiescent current, and 0.7-ms power-on time enable effective power-cycling architectures to minimize power consumption for battery-powered applications such as drones and sensor nodes. The LMT87LPG through-hole TO-92S package fast thermal time constant supports off-board time-temperature sensitive applications such as smoke and heat detectors. The accuracy over the wide operating range and other features make the LMT87 an excellent alternative to thermistors.

For devices with different average sensor gains and comparable accuracy, refer to Comparable Alternative Devices for alternative devices in the LMT8x family.

The LMT87 device is a precision CMOS temperature sensor with ±0.4°C typical accuracy (±2.7°C maximum) and a linear analog output voltage that is inversely proportional to temperature. The 2.7-V supply voltage operation, 5.4-µA quiescent current, and 0.7-ms power-on time enable effective power-cycling architectures to minimize power consumption for battery-powered applications such as drones and sensor nodes. The LMT87LPG through-hole TO-92S package fast thermal time constant supports off-board time-temperature sensitive applications such as smoke and heat detectors. The accuracy over the wide operating range and other features make the LMT87 an excellent alternative to thermistors.

For devices with different average sensor gains and comparable accuracy, refer to Comparable Alternative Devices for alternative devices in the LMT8x family.

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類型 標題 日期
* Data sheet LMT87 2.7-V, SC70/TO-92/TO-92S, Analog Temperature Sensors With Class-AB Output datasheet (Rev. E) PDF | HTML 2017年 10月 20日
Application note SC Temp Sensors Challenge Precision RTDs and Thermistors in Build Automation (Rev. A) 2019年 5月 8日
Technical article How to use temperature sensors to achieve linear thermal foldback in automotive LE PDF | HTML 2017年 3月 1日
More literature Analog Temperature Sensors 2013年 4月 18日
EVM User's guide Using the LMT84-7 Evaluation Board 2013年 2月 6日

設計與開發

如需其他條款或必要資源,請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

LMT84-7EVM — 適用於 LMT84、LMT85、LMT86 和 LMT87 溫度感測器的 EVM

The Texas Instruments LMT84-7EVM evaluation module (EVM) helps designers evaluate the operation and performance of the LMT84, LMT85, LMT86, and LMT87 analog temperature sensors.

使用指南: PDF
TI.com 無法提供
計算工具

SNIC009 LMT87 Look-Up Table

支援產品和硬體

支援產品和硬體

產品
類比溫度感測器
LMT87 具 -13.6 mV/°C 增益的 ±2°C 2.7V 至 5.5V 類比輸出溫度感測器 LMT87-Q1 具 -13.6 mV/°C 增益的車用 ±2.7°C 2.7V 至 5.5V 類比輸出溫度感測器
參考設計

TIDA-010210 — 以 GaN 為基礎的 11-kW、雙向、三相 ANPC 參考設計

此參考設計提供實作三階三相氮化鎵 (GaN) 型 ANPC 逆變器功率級的設計範本。使用快速切換功率裝置可在更高的 100 kHz 頻率進行切換、減少濾波器的磁性元件尺寸,以及提升功率級的功率密度。多階拓撲允許在高達 1000 V 的較高 DC 匯流排電壓下使用 600-V 額定電源裝置。低切換電壓應力減少切換損耗,導致峰值效率達 98.5%。
Design guide: PDF
電路圖: PDF
參考設計

TIDA-01606 — 10-kW、雙向三相三級 (T 型) 逆變器和 PFC 參考設計

This verified reference design provides an overview on how to implement a three-level three-phase SiC based DC:AC T-type inverter stage. Higher switching frequency of 50KHz reduces the size of magnetics for the filter design and enables higher power density. The use of SiC MOSFETs with switching (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-010054 — 適合於 Level 3 電動車充電站的雙向有源電橋參考設計

此參考設計提供單相雙主動橋式 (DAB) DC/DC 轉換器實作概覽。DAB 拓撲結構提供軟切換通訊、減少裝置數量與高效率等優勢。此設計的優勢在於功率密度、成本、重量、電隔離、高電壓轉換比與可靠性,這些都是關鍵要素,因此非常適合應用於 EV 充電站和儲能。DAB 中的模組化與對稱架構可堆疊轉換器,達到高功率傳輸速率,並有利於雙向運作模式來支援電池充電與放電應用。
Design guide: PDF
電路圖: PDF
參考設計

TIDA-00472 — 大型電容器縮減 30% 的 230V/250W、Hi-η 無感測器無刷 DC 馬達驅動器參考設計

The TIDA-00472 is a discrete IGBT-based three-phase inverter for driving brushless DC (BLDC) motors rated up to 250 W, for example, used in cooker hoods, using a sensor-less, trapezoidal control method. The design provides software implementation for DC bus voltage ripple compensation resulting in (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-00771 — 效率高達 97% 且具有堵轉電流限制的 10.8V/250W 精巧型無刷 DC 馬達驅動器參考設計

The TIDA-00771 is a 20 A RMS drive for a three phase brushless DC (BLDC) motor in power tools operating from a 3-cell Li-ion battery with a voltage range of 5 V to 12.6 V. This design is a 45 x 50 mm compact drive implementing sensor-based trapezoidal control. The design uses a discrete, compact (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-00774 — 效率大於 98% 的 18V/1kW、160A 峰值電流、高功率密度無刷馬達驅動參考設計

The TIDA-00774 is a 1kW drive for a three-phase brushless DC (BLDC) motor in power tools operating from a 5-cell Li-ion battery with a voltage up to 21 V. The design is a 65mm x 60mm compact drive, implementing sensor-based trapezoidal control. The design takes advantage of TI's MOSFET Power Block (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-00661 — 適用於空氣斷路器的高解析度、快速啟動類比前端參考設計

TIDA-00661 參考設計具備訊號處理前端子系統,適用於空氣斷路器 (ACB) 或模製外殼斷路器 (MCCB) 中使用的電子跳脫裝置 (ETU)。此子系統由具有 24 位元解析度和快速啟動 (< 3ms)、±2.5V 穩壓器、FRAM 架構微控制器 (MCU) 的 Delta-Sigma ADC 組成,用於介接 ADC 和處理輸入。子系統的設計用途為啟動、計算全週期 RMS 電流、做出決策,並在 30 ms 內為電磁閥提供跳脫訊號。
Design guide: PDF
電路圖: PDF
參考設計

PMP8740 — 具有 92% 全負載效率的 2-kW 工業用交流/直流電池充電器參考設計

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Test report: PDF
電路圖: PDF
參考設計

TIDA-00498 — 適用於斷路器應用 (ACB/MCCB) 的訊號處理子系統和電流輸入架構自我供電

TIDA-00498 參考設計具備適合在斷路器中所用電子跳脫單元 (ETU) 的訊號處理前端和自行供電模組。  基於 FRAM 的微控制器,用於處理來自訊號調節放大器的 3 相、中性和接地電流輸入。利用兩個增益來延伸相位電流量測的範圍。

此參考設計也可利用整流電流輸入自行供電。TIDA-00498 採用專屬設計,適用於廣泛電流與溫度範圍的快速可重複跳電 (30mS 內)。

Design guide: PDF
電路圖: PDF
參考設計

TIDA-00772 — 效率高達 98% 且具有堵轉電流限制的 18V/400W 精巧型無刷 DC 馬達驅動器參考設計

The TIDA-00772 is a 18 A RMS drive for a three phase brushless DC (BLDC) motor in power tools operating from a 5-cell Li-ion battery with a voltage up to 21 V. This design is a 45 x 50 mm compact drive implementing sensor-based trapezoidal control. The design uses a discrete, compact MOSFET-based (...)
Design guide: PDF
電路圖: PDF
封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOT-SC70 (DCK) 5 Ultra Librarian
TO-92 (LP) 3 Ultra Librarian
TO-92 (LPG) 3 Ultra Librarian

訂購與品質

內含資訊:
  • RoHS
  • REACH
  • 產品標記
  • 鉛塗層/球物料
  • MSL 等級/回焊峰值
  • MTBF/FIT 估算值
  • 材料內容
  • 認證摘要
  • 進行中持續性的可靠性監測
內含資訊:
  • 晶圓廠位置
  • 組裝地點

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