Datasheet Texas Instruments LDC2112

ManufacturerTexas Instruments
SeriesLDC2112
Datasheet Texas Instruments LDC2112

2-Channel HMI Inductive Touch Buttons for Consumer and Low-Power Applications

Datasheets

LDC2112, LDC2114 Inductive Touch Solution for Low-Power HMI Button Applications datasheet
PDF, 1.8 Mb, Revision: B, File published: Apr 4, 2017
Extract from the document

Prices

Status

LDC2112PWRLDC2112PWTLDC2112YFDRLDC2112YFDT
Lifecycle StatusPreview (Device has been announced but is not in production. Samples may or may not be available)Preview (Device has been announced but is not in production. Samples may or may not be available)Preview (Device has been announced but is not in production. Samples may or may not be available)Preview (Device has been announced but is not in production. Samples may or may not be available)
Manufacture's Sample AvailabilityNoNoNoNo

Packaging

LDC2112PWRLDC2112PWTLDC2112YFDRLDC2112YFDT
N1234
Pin16161616
Package TypePWPWYFDYFD
Industry STD TermTSSOPTSSOPDSBGADSBGA
JEDEC CodeR-PDSO-GR-PDSO-GS-XBGA-NS-XBGA-N
Package QTY20002503000250
CarrierLARGE T&RSMALL T&RLARGE T&RSMALL T&R
Width (mm)4.44.42.22.2
Length (mm)552.22.2
Thickness (mm)11.4.4
Pitch (mm).65.65.4.4
Max Height (mm)1.21.2.4.4
Mechanical DataDownloadDownloadDownloadDownload
Device Marking17M17M

Parametrics

Parameters / ModelsLDC2112PWR
LDC2112PWR
LDC2112PWT
LDC2112PWT
LDC2112YFDR
LDC2112YFDR
LDC2112YFDT
LDC2112YFDT
# Input Channels2222
Active Supply Current(Typ), mA3.663.663.663.66
Analog Supply (V), Min1.81.81.81.8
InterfaceGPIOs & I2CGPIOs & I2CGPIOs & I2CGPIOs & I2C
L (Inductance) Resolution, Bits12121212
Operating Temperature Range, C-40 to 85-40 to 85-40 to 85-40 to 85
Oscillation Amplitude(Max), V1.11.11.11.1
Oscillation Amplitude(Min), V0.850.850.850.85
Package GroupTSSOPTSSOPDSBGADSBGA
Package Size: mm2:W x L, PKG16TSSOP: 32 mm2: 6.4 x 5(TSSOP)16TSSOP: 32 mm2: 6.4 x 5(TSSOP)See datasheet (DSBGA)See datasheet (DSBGA)
RatingCatalogCatalogCatalogCatalog
Response Time(Max), 1/fsensorN/AN/AN/AN/A
Rp (Parallel Resonance Impedance) Resolution, BitsN/AN/AN/AN/A
Sensor Frequency, Hz1MHz to 30MHz1MHz to 30MHz1MHz to 30MHz1MHz to 30MHz
Sensor Rp Range(Max), Ohms10K10K10K10K
Sensor Rp Range(Min), Ohms35353535
Stand-By Current(Typ), uA5555

Eco Plan

LDC2112PWRLDC2112PWTLDC2112YFDRLDC2112YFDT
RoHSSee ti.comSee ti.comCompliantCompliant

Application Notes

  • LDC2112/LDC2114 Inductive Touch System Design Guide
    PDF, 3.0 Mb, File published: Feb 2, 2017
    The Inductive Touch System Design Guide presents an overview of the typical sensor mechanicalstructure and sensor electrical design for human machine interface (HMI) button applications. Themechanical design chapter discusses several factors that impact button sensitivity, including metalselection, sensor geometry, sensitivity dependence on target-to-coil distance, and mechanical isolation
  • Inductive Touch - Configuring LDC2114 Touch-Button Sensitivity
    PDF, 771 Kb, File published: Mar 16, 2017
    Erroneous or unintended button presses can result in a frustrating user experience in a human machine interface (HMI). Capacitive touch buttons trigger anytime a grounded object is brought close to the button; this can often cause false or erroneous button presses. One advantage mechanical buttons have over capacitive touch buttons is that a certain amount of force must be applied on the buttons f
  • EMI Considerations for Inductive Sensing
    PDF, 151 Kb, File published: Feb 22, 2017
    This application note explains various EMI reduction techniques to help improve EMI performance for TI'sInductance-to-Digital Converters (LDC). Each section details a general technique with references to otheruseful online documents. A list of relevant EMI reduction techniques is provided for specific devices withinthe LDC family of products.

Model Line

Manufacturer's Classification

  • Semiconductors> Sensing Products> Inductive Sensing> Inductance to Digital Converters