LC717A30UJ: Capacitance-Digital-Converter for Electrostatic Capacitive Touch Sensors

The LC717A30UJ is a high performance, low cost, and highly usable capacitance converter for electrostatic capacitive touch and proximity sensors. 8 capacitance-sensing input channels ideal for use in any end products that needs an array of switches. The LC717A30J facilitates a short system development time through its automatic calibration function and minimal external components. The detection result (ON/OFF) for each sensor is read out by the serial interface (I2C or SPI).

Features

Detection system: Differential capacitive detection using mutual capacitance
Sensor input pads: Operates with small to large capacitance sensor input pads
Input capacitance resolution: Capacitance detection down to femto-Farad level
Measurement time 16 ms for 8 sensors
Minimal external components
Selectable interface : I2C or SPI
Current consumption : 0.8 mA (VDD = 5.5 V)
Supply voltage : 2.6 to 5.5 V
AEC-Q100 qualified and PPAP capable

Benefits

Superior sensitivity performance - even not only wearing multiple layers of gloves, air gap, or thick materials but also gesture.
Reducing cost because of being unnecessary to supplement sensitivity.
Achieving layout freely because of receiving hardly from parasitic capacitance.
High adaptability by internal both noise reduction and correspondence system for environment changing.
Advantage tolerance for malfunction prevention of water.

Applications

Automotive
Consumer
Industrial
Computing
Lighting

End Products

Smart key, Control switches, Car audio and Proximity
Home Appliance, White goods and Induction Cooking
Security lock
PC Peripherals, Audio Visual equipment
Remote control switches

Software (3)

Document Title	Document ID/Size	Revision	Revision Date
LC717A Capacitance Checking Application (Zip Format)	LC717ACapChecker2.exe (570kB)	0
LC717A30 Application (Zip Format)	LC717A30App.exe (298kB)	0
Parameter Files for LC717A30App.exe on LC717A30UJGEVK (Zip Format)	LC717A30UJGEVK_PARAMETER (10kB)	0

Package Drawings (1)

Document Title	Document ID/Size	Revision
SSOP30 (225 mil)	565AZ (59.1kB)	A

Application Notes (3)

Document Title	Document ID/Size	Revision	Revision Date
LC717A Series Capacitance Checker 2 Software User’s Manual	AND9543/D (624kB)	0	Dec, 2016
LC717A30 Application Note	AND9346/D (1106kB)	0	Jan, 2017
LC717A30 Evaluation Application Software User's Manual	AND9367/D (1378kB)	1	Jan, 2017

Data Sheets (1)

Document Title	Document ID/Size	Revision	Revision Date
Capacitance-Digital-Converter for Electrostatic Capacitive Touch Sensors	LC717A30UJ/D (329kB)	0	Dec, 2016

Evaluation Board Documents (4)

Document Title	Document ID/Size	Revision Date
LC717A30UJGEVK Bill of Materials ROHS Compliant (Zip Format)	LC717A30UJGEVK_BOM_ROHS (177kB)
LC717A30UJGEVK Electrostatic Capacitive Sensor Evaluation Kit User's Manual	EVBUM2493/D (3193kB)	Nov, 2016
LC717A30UJGEVK Gerber Layout Files (Zip Format)	LC717A30UJGEVK_GERBER (162kB)
LC717A30UJGEVK Schematic (Zip Format)	LC717A30UJGEVK_SCHEMATIC (570kB)