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電感式感測器 AFE

LDC3114-Q1

現行

適用於低功耗近距與觸控按鈕感測的 4 通道電感數位轉換器

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產品規格表

LDC3114-Q1

現行
產品規格表 立即訂購

產品詳細資料

Applications Encoders/event counters, Inductive touch buttons, Metal proximity detection Number of input channels 4 Rating Automotive Vs (max) (V) 1.89 Vs (min) (V) 1.71 TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 125
Applications Encoders/event counters, Inductive touch buttons, Metal proximity detection Number of input channels 4 Rating Automotive Vs (max) (V) 1.89 Vs (min) (V) 1.71 TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 125
TSSOP (PW) 16 32 mm² (5 mm × 6.4 mm)
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C4B
  • Functional Safety-Capable
  • Multiple modes of operation:
    • Raw data mode: access pre-processed inductance measurement data to enable advanced algorithms on MCU for linear sensing
    • Button mode: button press detection with baseline tracking and advanced on-chip post processing
    • Force level measurement of touch buttons
  • Pin and register compatible to LDC2114
  • Robust EMI performance allows for CISPR 22 and CISPR 24 compliance
  • Four independent channel operation
  • Configurable scan rates:
    • 0.625 SPS to 160 SPS
    • Continuous scanning option
  • Advanced button press detection algorithms:
    • Adjustable force threshold per button
    • Environmental shift compensation
    • Simultaneous button press detection
  • Low current consumption:
    • One button: 6 µA at 0.625 SPS
    • Two buttons: 72 µA at 20 SPS
  • Interface:
    • 1.8-V and 3.3-V compliant I2C and INTB
    • 1.8-V logic output per channel for buttons
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C4B
  • Functional Safety-Capable
  • Multiple modes of operation:
    • Raw data mode: access pre-processed inductance measurement data to enable advanced algorithms on MCU for linear sensing
    • Button mode: button press detection with baseline tracking and advanced on-chip post processing
    • Force level measurement of touch buttons
  • Pin and register compatible to LDC2114
  • Robust EMI performance allows for CISPR 22 and CISPR 24 compliance
  • Four independent channel operation
  • Configurable scan rates:
    • 0.625 SPS to 160 SPS
    • Continuous scanning option
  • Advanced button press detection algorithms:
    • Adjustable force threshold per button
    • Environmental shift compensation
    • Simultaneous button press detection
  • Low current consumption:
    • One button: 6 µA at 0.625 SPS
    • Two buttons: 72 µA at 20 SPS
  • Interface:
    • 1.8-V and 3.3-V compliant I2C and INTB
    • 1.8-V logic output per channel for buttons

The LDC3114-Q1 is an inductive sensing device that enables touch button design for human machine interface (HMI) on a wide variety of materials by measuring small deflections of conductive targets using a coil that can be implemented on a small printed circuit board (PCB) located behind the panel. This technology can be used for precise linear position sensing of metal targets for automotive, consumer and industrial applications by allowing access to the raw data representing the inductance value. Inductive sensing solution is insensitive to humidity or non-conductive contaminants such as oil and dirt.

The button mode of LDC3114-Q1 is able to automatically correct for any deformation in the conductive targets. The LDC3114-Q1 offers well-matched channels, which allow for differential and ratiometric measurements which enable compensation of environmental and aging conditions such as temperature and mechanical drift. The LDC3114-Q1 includes an ultra-low power mode intended for power on/off buttons or position sensors in battery powered applications.

The LDC3114-Q1 is easily configured through an I2C interface. The LDC3114-Q1 is available in a 16-pin TSSOP package.

The LDC3114-Q1 is an inductive sensing device that enables touch button design for human machine interface (HMI) on a wide variety of materials by measuring small deflections of conductive targets using a coil that can be implemented on a small printed circuit board (PCB) located behind the panel. This technology can be used for precise linear position sensing of metal targets for automotive, consumer and industrial applications by allowing access to the raw data representing the inductance value. Inductive sensing solution is insensitive to humidity or non-conductive contaminants such as oil and dirt.

The button mode of LDC3114-Q1 is able to automatically correct for any deformation in the conductive targets. The LDC3114-Q1 offers well-matched channels, which allow for differential and ratiometric measurements which enable compensation of environmental and aging conditions such as temperature and mechanical drift. The LDC3114-Q1 includes an ultra-low power mode intended for power on/off buttons or position sensors in battery powered applications.

The LDC3114-Q1 is easily configured through an I2C interface. The LDC3114-Q1 is available in a 16-pin TSSOP package.

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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 LDC3114-Q1 4-Channel Hybrid Inductive Touch and Inductance to Digital Converter datasheet (Rev. B) PDF | HTML 2021/12/21
應用說明 Automotive Door Handle Design with Position Sensors PDF | HTML 2024/4/10
Application brief Automotive Door Handle Module Using Hall, Inductive and Capacitive Sensors PDF | HTML 2023/11/29
應用說明 Capacitive, Inductive, and Hall Sensing for HMI in Automotive Applications (Rev. A) PDF | HTML 2023/5/9
應用說明 Inductive Touch System Design Guide for HMI Button Applications (Rev. A) PDF | HTML 2023/2/13
Application brief Using Hall-Effect and Inductive Sensors in Automotive HMI Applications PDF | HTML 2022/10/10
應用說明 Electromagnetic Interference Testing Using the LDC3114 PDF | HTML 2022/6/7
應用說明 Design Considerations for Inductive Touch Buttons for Human-to-Machine Interface (Rev. B) PDF | HTML 2022/4/12
應用說明 Replacing Mechanical Switches With Inductive Sensors PDF | HTML 2022/4/8
使用指南 3D Attachments for the BOOST-LDC3114EVM PDF | HTML 2022/1/28
應用說明 Inductive Sensing for LDC3114 Metal Proximity Detection PDF | HTML 2021/8/6
應用說明 Inductive Touch – Configuring LDC2114 and LDC3114 Touch-Button Sensitivity (Rev. B) PDF | HTML 2021/7/28
應用說明 LDC211x and LDC3114 Internal Algorithm Functionality (Rev. A) PDF | HTML 2021/7/1
應用說明 Common Inductive and Capacitive Sensing Applications (Rev. B) PDF | HTML 2021/6/22
Application brief Inductive Touch Buttons for Wearables (Rev. A) PDF | HTML 2021/6/22
應用說明 Simulate Inductive Sensors Using FEMM (Finite Element Method Magnetics) (Rev. A) PDF | HTML 2021/6/16
應用說明 LDC Device Selection Guide (Rev. D) PDF | HTML 2021/6/15
應用說明 Sensor Design for Inductive Sensing Applications Using LDC (Rev. C) PDF | HTML 2021/5/21
應用說明 LDC Target Design (Rev. B) PDF | HTML 2021/5/13
功能安全資訊 LDC3114-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 2021/4/8
應用說明 EMI Considerations for Inductive Sensing 2017/2/22
技術文章 Inductive sensing: target size matters PDF | HTML 2015/11/16
技術文章 Inductive sensing: Meet the new multichannel LDCs PDF | HTML 2015/4/27

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

BOOST-LDC3114EVM — 適用於電感感測的 LDC3114 評估模組

此 EVM (評估模組) 是一款易於使用的平台，用於評估 LDC3114 的主要功能與性能。EVM 包括用來讀取和寫入暫存器，以及檢視和儲存測量結果的圖形使用者介面 (GUI)。另外隨附的整合式線圈可檢查裝置的功能及性能。

使用指南: PDF | HTML
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開發板

LDC-HALL-HMI-EVM — 適用於電感式觸控和磁性轉盤非接觸式使用者介面設計的評估模組

此評估模組 (EVM) 使用電感及霍爾效應感測技術以提供人機介面。電感式感測裝置可在無縫表面建立八個不同的觸控按鈕，而霍爾效應感測器則可用於建立磁性轉盤，其可轉動並用作額外按鈕。
使用指南: PDF | HTML
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韌體

LDC3114-CODE-EXAMPLE — LDC3114 and LDC3114-Q1 C code example

C code example for the LDC3114 and LDC3114-Q1
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韌體

LDC3114-MSPM0L1306-CODE-EXAMPLE — Example code for the BOOST-LDC3114EVM connected to the LP-MSPM0L1306

Example code for using the BOOST-LDC3114EVM with the LP-MSPM0L1306
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模擬型號

LDC3114 in Raw Data Mode PSpice Model

SNOM776.ZIP (605 KB) - PSpice 模型
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計算工具

LDC-CALCULATOR-TOOLS — Inductive Sensing Design Calculator Tool

電感感測計算機工具提供兩份 Excel 試算表，協助電感轉數位轉換器 (LDC) 裝置的設計流程。這些工具可提供線圈設計協助，以及一些裝置特有的設定。

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參考設計

TIDA-060039 — 電感式觸控及磁性轉盤非接觸式使用者介面參考設計

此參考設計採用電感及霍爾效應感測技術以提供人機介面。電感式感測裝置可在無縫表面建立八個不同的觸控按鈕，而霍爾效應感測器則可用於建立磁性轉盤，其可轉動並用作額外按鈕。

使用感應式感測觸控按鈕提供完整的解決方案，該解決方案使用按壓之力來決定按鈕的按壓動作。這使觸控按鈕可以與手套一起使用，同時忽略環境因素，如按鈕表面髒污或損壞。霍爾效應感測器轉盤可產生非接觸式旋轉，與電位計或旋轉編碼器等傳統接觸式實作方式相比，其磨損與撕裂程度有所改善。

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封裝 針腳 CAD 符號、佔位空間與 3D 模型
TSSOP (PW) 16 Ultra Librarian
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