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LMT88

現行

具有 -11.77-mV/°C 增益的 ±4°C 類比輸出溫度感測器

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產品規格表

LMT88

現行
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產品詳細資料

Local sensor accuracy (max) 4 Rating Catalog Operating temperature range (°C) -55 to 130 Supply current (max) (µA) 7 Interface type Analog output Sensor gain (mV/°C) -11.77 Features Industry standard pinout
Local sensor accuracy (max) 4 Rating Catalog Operating temperature range (°C) -55 to 130 Supply current (max) (µA) 7 Interface type Analog output Sensor gain (mV/°C) -11.77 Features Industry standard pinout
SOT-SC70 (DCK) 5 4.2 mm² (2 mm × 2.1 mm)
  • Cost-Effective Alternative to Thermistors
  • Rated for Full −55°C to 130°C Range
  • Available in an SC70 Package
  • Predictable Curvature Error
  • Suitable for Remote Applications
  • Cost-Effective Alternative to Thermistors
  • Rated for Full −55°C to 130°C Range
  • Available in an SC70 Package
  • Predictable Curvature Error
  • Suitable for Remote Applications

The LMT88 device is a precision analog output CMOS integrated-circuit temperature sensor that operates over a temperature range of −55°C to 130°C . The power supply operating range is 2.4 V to 5.5 V. The transfer function of LMT88 is predominately linear, yet has a slight predictable parabolic curvature. The accuracy of the LMT88 when specified to a parabolic transfer function is typically ±1.5°C at an ambient temperature of 30°C. The temperature error increases linearly and reaches a maximum of ±2.5°C at the temperature range extremes. The temperature range is affected by the power supply voltage. At a power supply voltage of 2.7 V to 5.5 V, the temperature range extremes are 130°C and −55°C. Decreasing the power supply voltage to 2.4 V changes the negative extreme to −30°C, while the positive remains at 130°C.

The LMT88 quiescent current is less than 10 μA. Therefore, self-heating is less than 0.02°C in still air. Shutdown capability for the LMT88 is intrinsic because its inherent low power consumption allows it to be powered directly from the output of many logic gates or does not necessitate shutdown at all.

The LMT88 is a cost-competitive alternative to thermistors.

The LMT88 device is a precision analog output CMOS integrated-circuit temperature sensor that operates over a temperature range of −55°C to 130°C . The power supply operating range is 2.4 V to 5.5 V. The transfer function of LMT88 is predominately linear, yet has a slight predictable parabolic curvature. The accuracy of the LMT88 when specified to a parabolic transfer function is typically ±1.5°C at an ambient temperature of 30°C. The temperature error increases linearly and reaches a maximum of ±2.5°C at the temperature range extremes. The temperature range is affected by the power supply voltage. At a power supply voltage of 2.7 V to 5.5 V, the temperature range extremes are 130°C and −55°C. Decreasing the power supply voltage to 2.4 V changes the negative extreme to −30°C, while the positive remains at 130°C.

The LMT88 quiescent current is less than 10 μA. Therefore, self-heating is less than 0.02°C in still air. Shutdown capability for the LMT88 is intrinsic because its inherent low power consumption allows it to be powered directly from the output of many logic gates or does not necessitate shutdown at all.

The LMT88 is a cost-competitive alternative to thermistors.
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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 LMT88 2.4-V, 10-µA, SC-70 Temperature Sensor datasheet (Rev. A) PDF | HTML 2015/1/31
應用說明 SC Temp Sensors Challenge Precision RTDs and Thermistors in Build Automation (Rev. A) 2019/5/8
技術文章 It may be small, but it’s powerful PDF | HTML 2016/10/27
更多文件說明 Analog Temperature Sensors 2013/4/18

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開發板

LMT88-9EVM — LMT88 和 LMT89 溫度感測器 EVM

The Texas Instruments LMT88-9EVM evaluation module (EVM) helps designers evaluate the operation and performance of the LMT88 and LMT87 analog temperature sensors.

使用指南: PDF
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參考設計

TIDA-01292 — 適用於低頻離線 UPS 和逆變器且不帶散熱器的 650W 功率級參考設計

此參考設計為 650-W 逆變器功率級，專為低頻（基於變壓器）、單相 UPS（由 12-V 電池供電）而設計。此設計利用 SON5x6 封裝且具有極低 RDS (on) 與低閘極電荷 (Qg) 的 TI SMD MOSFET，實現小外型尺寸與高效率實作方案。透過在全橋式功率級的各腳上並聯使用兩個裝置，該功率級消除了散熱器的需求，進而降低整體系統成本。

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