Datasheet Texas Instruments LDC2112 — 数据表

制造商	Texas Instruments
系列	LDC2112

适用于消费类和低功耗应用的2通道HMI感应式触摸按钮

数据表

PDF, 1.8 Mb, 修订版: B, 档案已发布: Apr 4, 2017

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	LDC2112PWR	LDC2112PWT	LDC2112YFDR	LDC2112YFDT
Lifecycle Status	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)	Preview (Device has been announced but is not in production. Samples may or may not be available)
Manufacture's Sample Availability	No	No	No	No

	LDC2112PWR	LDC2112PWT	LDC2112YFDR	LDC2112YFDT
N	1	2	3	4
Pin	16	16	16	16
Package Type	PW	PW	YFD	YFD
Industry STD Term	TSSOP	TSSOP	DSBGA	DSBGA
JEDEC Code	R-PDSO-G	R-PDSO-G	S-XBGA-N	S-XBGA-N
Package QTY	2000	250	3000	250
Carrier	LARGE T&R	SMALL T&R	LARGE T&R	SMALL T&R
Width (mm)	4.4	4.4	2.2	2.2
Length (mm)	5	5	2.2	2.2
Thickness (mm)	1	1	.4	.4
Pitch (mm)	.65	.65	.4	.4
Max Height (mm)	1.2	1.2	.4	.4
Mechanical Data	下载	下载	下载	下载
Device Marking			17M	17M

Parameters / Models	LDC2112PWR	LDC2112PWT	LDC2112YFDR	LDC2112YFDT
# Input Channels	2	2	2	2
Active Supply Current(Typ), mA	3.66	3.66	3.66	3.66
Analog Supply (V), Min	1.8	1.8	1.8	1.8
Interface	GPIOs & I2C	GPIOs & I2C	GPIOs & I2C	GPIOs & I2C
L (Inductance) Resolution, Bits	12	12	12	12
Operating Temperature Range, C	-40 to 85	-40 to 85	-40 to 85	-40 to 85
Oscillation Amplitude(Max), V	1.1	1.1	1.1	1.1
Oscillation Amplitude(Min), V	0.85	0.85	0.85	0.85
Package Group	TSSOP	TSSOP	DSBGA	DSBGA
Package Size: mm2:W x L, PKG	16TSSOP: 32 mm2: 6.4 x 5(TSSOP)	16TSSOP: 32 mm2: 6.4 x 5(TSSOP)	See datasheet (DSBGA)	See datasheet (DSBGA)
Rating	Catalog	Catalog	Catalog	Catalog
Response Time(Max), 1/fsensor	N/A	N/A	N/A	N/A
Rp (Parallel Resonance Impedance) Resolution, Bits	N/A	N/A	N/A	N/A
Sensor Frequency, Hz	1MHz to 30MHz	1MHz to 30MHz	1MHz to 30MHz	1MHz to 30MHz
Sensor Rp Range(Max), Ohms	10K	10K	10K	10K
Sensor Rp Range(Min), Ohms	35	35	35	35
Stand-By Current(Typ), uA	5	5	5	5

	LDC2112PWR	LDC2112PWT	LDC2112YFDR	LDC2112YFDT
RoHS	See ti.com	See ti.com	Compliant	Compliant

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LDC2112/LDC2114 Inductive Touch System Design Guide
PDF, 3.0 Mb, 档案已发布: 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
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Inductive Touch - Configuring LDC2114 Touch-Button Sensitivity
PDF, 771 Kb, 档案已发布: 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
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EMI Considerations for Inductive Sensing
PDF, 151 Kb, 档案已发布: 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.

系列: LDC2112 (4)

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