onsemi LC717A30UJ
LC717A30UJ is a high performance, low cost, and highly usable capacitance converter for electrostatic capacitive touch, proximity sensors and liquid level sensing. 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).
Benefits
- Differential capacitive detection using mutual capacitance
- Operates with small to large capacitance sensor input pads
- 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 V to 5.5 V
- AEC-Q100 qualified and PPAP capable
Applications
- Automotive : Smart key, Control switches, Car audio, Proximity
- Consumer : Home Appliance, White goods, Induction Cooking
- Industrial : Security lock
- Computing : PC Peripherals, Audio Visual equipment
- Lighting : Remote control switches
Evaluation Kit available: LC717A30UJGEVK
Demonstrate many applications including liquid level sensing
Block Diagram
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