Reference Designs
Capacitive Touch Operated Automotive LED Dome Light with Haptics Feedback
Texas Instruments
This TIDA-00156 reference design is a capacitive touch / haptic feedback automotive interior lighting solution optimized for automotive Dome light / Map light applications. The solution features a haptic driver with extensive integrated library (100+ effects) for ERM actuators: constant current LED driver with integrated PWM input permitting LED brightness regulation: low power MCU optimized for capacitive touch: and LIN interface communication.
Features
- Wide input voltage range: 12V Typical: 8-18V Continuous: 42V Load DumpLow system quiescent current consumption (400 kHz buck converter switching frequency utlilized in order to stay out of the AM bandDesign capable of supplying constant LED current and controlled LED current using a PWM signalEasily accessible integrated library of waveforms via I2C communication for a variety of haptic feedback effectsAbility to implement cap touch detection without external components other than the on-board MSP430
Applications
- Interior light
Product Categories
- Amplifiers
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