홈 센서 전문 센서 유도성 센서 AFE
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센서
전문 센서
유도성 센서 AFE

LDC2112

활성

저전력 터치 버튼에 대한 기준 추적을 지원하는 2채널 인덕턴스-디지털 컨버터

지금 주문하기
데이터 시트

LDC2112

활성
데이터 시트 지금 주문하기

제품 상세 정보

Applications Inductive touch buttons Number of input channels 2 Rating Catalog Vs (max) (V) 1.89 Vs (min) (V) 1.71 Operating temperature range (°C) -40 to 85
Applications Inductive touch buttons Number of input channels 2 Rating Catalog Vs (max) (V) 1.89 Vs (min) (V) 1.71 Operating temperature range (°C) -40 to 85
DSBGA (YFD) 16 3.24 mm² 1.8 x 1.8 TSSOP (PW) 16 32 mm² 5 x 6.4
  • Low Power Consumption:
    • One Button: 6 µA at 0.625 SPS
    • Two Buttons: 72 µA at 20 SPS
  • Configurable Button Scan Rates:
    • 0.625 SPS to 80 SPS
  • Force Level Measurement of Touch Buttons
  • Independent Channel Operation:
    • Two Channels for LDC2112
    • Four Channels for LDC2114
  • Integrated Algorithms to Enable:
    • Adjustable Force Threshold per Button
    • Environmental Shift Compensation
    • Simultaneous Button Press Detection
  • Supports Independent Operation without MCU
  • Robust EMI Performance:
    • Allows for CISPR 22 and CISPR 24 Compliance
  • Operating Voltage Range: 1.8 V ± 5%
  • Temperature Range: –40 °C to +85 °C
  • Interface:
    • I2C
    • Dedicated Logic Output per Channel
  • Low Power Consumption:
    • One Button: 6 µA at 0.625 SPS
    • Two Buttons: 72 µA at 20 SPS
  • Configurable Button Scan Rates:
    • 0.625 SPS to 80 SPS
  • Force Level Measurement of Touch Buttons
  • Independent Channel Operation:
    • Two Channels for LDC2112
    • Four Channels for LDC2114
  • Integrated Algorithms to Enable:
    • Adjustable Force Threshold per Button
    • Environmental Shift Compensation
    • Simultaneous Button Press Detection
  • Supports Independent Operation without MCU
  • Robust EMI Performance:
    • Allows for CISPR 22 and CISPR 24 Compliance
  • Operating Voltage Range: 1.8 V ± 5%
  • Temperature Range: –40 °C to +85 °C
  • Interface:
    • I2C
    • Dedicated Logic Output per Channel

Inductive sensing technology enables touch button design for human machine interface (HMI) on a wide variety of materials such as metal, glass, plastic, and wood, by measuring small deflections of conductive targets. The sensor for an inductive touch system is a coil that can be implemented on a small PCB located behind the panel and protected from the environment. Inductive sensing solution is insensitive to humidity or non-conductive contaminants such as oil and dirt. It is able to automatically correct for any deformation in the conductive targets.

The LDC2112/LDC2114 is a multi-channel low-noise inductance to digital converter with integrated algorithms to implement inductive touch applications. The device employs an innovative LC resonator that offers high rejection of noise and interference. The LDC2112/LDC2114 can reliably detect material deflections of less than 200 nm.

The LDC2112/LDC2114 includes an ultra-low power mode intended for power on/off buttons in battery powered applications.

The LDC2112/LDC2114 is available in a 16-pin DSBGA or TSSOP package. The 0.4 mm pitch DSBGA package has a very small 1.6 × 1.6 mm nominal body size with a maximum height of 0.4 mm. The 0.65 mm pitch TSSOP package has a 5.0 × 4.4 mm nominal body size with a maximum height of 1.2 mm.

Inductive sensing technology enables touch button design for human machine interface (HMI) on a wide variety of materials such as metal, glass, plastic, and wood, by measuring small deflections of conductive targets. The sensor for an inductive touch system is a coil that can be implemented on a small PCB located behind the panel and protected from the environment. Inductive sensing solution is insensitive to humidity or non-conductive contaminants such as oil and dirt. It is able to automatically correct for any deformation in the conductive targets.

The LDC2112/LDC2114 is a multi-channel low-noise inductance to digital converter with integrated algorithms to implement inductive touch applications. The device employs an innovative LC resonator that offers high rejection of noise and interference. The LDC2112/LDC2114 can reliably detect material deflections of less than 200 nm.

The LDC2112/LDC2114 includes an ultra-low power mode intended for power on/off buttons in battery powered applications.

The LDC2112/LDC2114 is available in a 16-pin DSBGA or TSSOP package. The 0.4 mm pitch DSBGA package has a very small 1.6 × 1.6 mm nominal body size with a maximum height of 0.4 mm. The 0.65 mm pitch TSSOP package has a 5.0 × 4.4 mm nominal body size with a maximum height of 1.2 mm.

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기술 자료

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검색된 결과가 없습니다. 검색어를 지우고 다시 시도하세요.
17개 모두 보기
상위 문서 유형 직함 형식 옵션 날짜
* Data sheet LDC2112, LDC2114 Inductive Touch Solution for Low-Power HMI Button Applications datasheet (Rev. B) PDF | HTML 2017/04/04
Application note Inductive Touch System Design Guide for HMI Button Applications (Rev. A) PDF | HTML 2023/02/13
Application note Design Considerations for Inductive Touch Buttons for Human-to-Machine Interface (Rev. B) PDF | HTML 2022/04/12
Application note Inductive Touch – Configuring LDC2114 and LDC3114 Touch-Button Sensitivity (Rev. B) PDF | HTML 2021/07/28
Application note LDC211x and LDC3114 Internal Algorithm Functionality (Rev. A) PDF | HTML 2021/07/01
Application note Common Inductive and Capacitive Sensing Applications (Rev. B) PDF | HTML 2021/06/22
Application brief Inductive Touch Buttons for Wearables (Rev. A) PDF | HTML 2021/06/22
Application note Simulate Inductive Sensors Using FEMM (Finite Element Method Magnetics) (Rev. A) PDF | HTML 2021/06/16
Application note LDC Device Selection Guide (Rev. D) PDF | HTML 2021/06/15
Application note Sensor Design for Inductive Sensing Applications Using LDC (Rev. C) PDF | HTML 2021/05/21
Application note LDC Target Design (Rev. B) PDF | HTML 2021/05/13
Application note EMI Considerations for Inductive Sensing 2017/02/22
User guide LDC2114 Evaluation Module for Inductive Touch Inductance to Digital Converter 2016/12/14
Technical article How to use the LDC calculations tool PDF | HTML 2016/11/10
Technical article Inductive sensing: target size matters PDF | HTML 2015/11/16
Application note Measuring Rp of an L-C Sensor for Inductive Sensing 2015/10/01
Technical article Inductive sensing: Meet the new multichannel LDCs PDF | HTML 2015/04/27

설계 및 개발

추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.

평가 보드

LDC2114EVM — LDC2114 1.8V 4채널 인덕티브 터치 평가 모듈

LDC2114EVM(평가 모듈)은 유도성 센서를 사용하여 모놀리식 금속 조각의 버튼 누름을 감지하는 방법을 보여줍니다. 이 EVM은 LDCTOUCHCOMCOILEVM을 또는 Webench를 통해 설계된 사용자 지정 코일을 사용하여 최대 4개의 버튼을 연결할 수 있습니다. 버튼 누름 및 압력 수준은 온보드 LED로 표시됩니다. 또한 이 장치는 다양한 듀티 사이클에서 구성할 수 있으므로 전력 소비를 줄일 수 있습니다.
사용 설명서: PDF
TI.com에서 구매할 수 없음
평가 보드

LDCTOUCHCOMCOILEVM — 인덕티브 터치 센서 코일 평가 보드

The LDCTOUCHCOMCOILEVM is designed to provide maximum flexibility for system prototyping in inductive touch applications and allows experimentation with different coil sizes.  It includes 5 sets of different sized PCB coils with integrated spacers & perforations such that the coils can be (...)
사용 설명서: PDF
TI.com에서 구매할 수 없음
평가 모듈(EVM)용 GUI

SNOC028 — Sensing Solutions EVM GUI Tool v1.10.0

지원되는 제품 및 하드웨어

지원되는 제품 및 하드웨어
다운로드
시뮬레이션 모델

LDC2112 IBIS Model

SNOM612.ZIP (27 KB) - IBIS Model
다운로드
계산 툴

LDC-CALCULATOR-TOOLS — Inductive Sensing Design Calculator Tool

The inductive sensing calculator tools provide two Excel spreadsheets to assist in the design process for inductive-to-digital converter (LDC) devices. These tools provide coil design assistance as well as some device-specific configurations.

지원되는 제품 및 하드웨어

지원되는 제품 및 하드웨어
다운로드
패키지 핀 CAD 기호, 풋프린트 및 3D 모델
DSBGA (YFD) 16 Ultra Librarian
TSSOP (PW) 16 Ultra Librarian
TI의 평가 항목에 대한 표준 약관이 적용됩니다.

주문 및 품질

포함된 정보:
  • RoHS
  • REACH
  • 디바이스 마킹
  • 납 마감/볼 재질
  • MSL 등급/피크 리플로우
  • MTBF/FIT 예측
  • 물질 성분
  • 인증 요약
  • 지속적인 신뢰성 모니터링
포함된 정보:
  • 팹 위치
  • 조립 위치

권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.

지원 및 교육

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포럼 주제 모두 보기(영문)

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