产品详细信息

Applications Inductive touch buttons, Encoders/event counters, Metal proximity detection Number of input channels 4 Vs (Max) (V) 1.89 Vs (Min) (V) 1.71 Operating temperature range (C) -40 to 125 TI functional safety category Functional Safety-Capable
Applications Inductive touch buttons, Encoders/event counters, Metal proximity detection Number of input channels 4 Vs (Max) (V) 1.89 Vs (Min) (V) 1.71 Operating temperature range (C) -40 to 125 TI functional safety category Functional Safety-Capable
TSSOP (PW) 16 22 mm² 5 x 4.4
  • 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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技术文档

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类型 标题 下载最新的英文版本 日期
* 数据表 LDC3114-Q1 4-Channel Hybrid Inductive Touch and Inductance to Digital Converter 数据表 (Rev. A) 2021年 12月 3日
用户指南 BOOST-LDC3114EVM User's Guide (Rev. A) 2021年 9月 17日
应用手册 Inductive Sensing for Metal Proximity Detection 2021年 8月 6日
应用手册 Inductive Touch Buttons for HMIs (Rev. A) 2021年 7月 20日
应用手册 Simulate Inductive Sensors Using FEMM (Finite Element Method Magnetics) (Rev. A) 2021年 6月 16日
应用手册 LDC1xxx LDC Target Design (Rev. B) 2021年 5月 13日
功能安全信息 LDC3114-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA 2021年 4月 8日
应用手册 EMI Considerations for Inductive Sensing 2017年 2月 22日
技术文章 Inductive sensing: target size matters 2015年 11月 16日

设计与开发

有关其他条款或所需资源,请点击下面的任何链接来查看详情页面。

评估板

BOOST-LDC3114EVM — LDC3114 感应评估模块

此 EVM(评估模块)是一个易于使用的平台,用于评估 LDC3114 的主要特性和性能。此 EVM 包含图形用户界面 (GUI),用于读取和写入寄存器以及查看和保存测量结果。还包括一个集成线圈,用于检查器件的功能和性能。

现货
数量限制: 5
计算工具

Inductive Sensing Design Calculator Tool (Rev. G)

SLYC137G.ZIP (3737 KB)
封装 引脚 下载
TSSOP (PW) 16 了解详情

订购与质量

包含信息:
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/FIT 估算
  • 材料成分
  • 认证摘要
  • 持续可靠性监测

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