LDC2112

활성

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

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데이터 시트

document-pdfAcrobat LDC2112, LDC2114 Inductive Touch Solution for Low-Power HMI Button Applications datasheet (Rev. B) (영어) PDF | HTML

LDC2112

활성

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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 (0 mm × 0 mm)

TSSOP (PW)

16

32 mm² (5 mm × 6.4 mm)

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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17개 모두 보기

상위 문서	유형	직함	형식 옵션
*	데이터 시트	LDC2112, LDC2114 Inductive Touch Solution for Low-Power HMI Button Applications datasheet (Rev. B)	PDF \| HTML	2017. 4. 4
	애플리케이션 노트	Inductive Touch System Design Guide for HMI Button Applications (Rev. A)	PDF \| HTML	2023. 2. 13
	애플리케이션 노트	Design Considerations for Inductive Touch Buttons for Human-to-Machine Interface (Rev. B)	PDF \| HTML	2022. 4. 12
	애플리케이션 노트	Inductive Touch – Configuring LDC2114 and LDC3114 Touch-Button Sensitivity (Rev. B)	PDF \| HTML	2021. 7. 28
	애플리케이션 노트	LDC211x and LDC3114 Internal Algorithm Functionality (Rev. A)	PDF \| HTML	2021. 7. 1
	애플리케이션 노트	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
	애플리케이션 노트	Simulate Inductive Sensors Using FEMM (Finite Element Method Magnetics) (Rev. A)	PDF \| HTML	2021. 6. 16
	애플리케이션 노트	LDC Device Selection Guide (Rev. D)	PDF \| HTML	2021. 6. 15
	애플리케이션 노트	Sensor Design for Inductive Sensing Applications Using LDC (Rev. C)	PDF \| HTML	2021. 5. 21
	애플리케이션 노트	LDC Target Design (Rev. B)	PDF \| HTML	2021. 5. 13
	애플리케이션 노트	EMI Considerations for Inductive Sensing		2017. 2. 22
	사용 설명서	LDC2114 Evaluation Module for Inductive Touch Inductance to Digital Converter		2016. 12. 14
	기술 문서	How to use the LDC calculations tool	PDF \| HTML	2016. 11. 10
	기술 문서	Inductive sensing: target size matters	PDF \| HTML	2015. 11. 16
	애플리케이션 노트	Measuring Rp of an L-C Sensor for Inductive Sensing		2015. 10. 1
	기술 문서	Inductive sensing: Meet the new multichannel LDCs	PDF \| HTML	2015. 4. 27

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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.

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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