IQS7229
The IQS7229 ProxFusion® IC is both a standalone and I2C sensing device for multi-channel proximity or touch sensing requirements. The sensor is fully I2C compatible, and on-chip calculations enable the IC to respond effectively even in the lowest power modes.
Main Features
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- Highly flexible ProxFusion® device
- 8 Self-Capacitive external sensor pad connections
- Configure up to 8 Channels using the external connections
- Built-in basic functions:
- Automatic tuning
- Noise filtering
- Debounce & Hysteresis
- Built-in Signal processing options:
- 6 Standalone touch output pins for a robust output in a noisy environment
- Design simplicity:
- PC Software for debugging and obtaining optimal settings and performance
- Auto-run from programmed settings for simplified integration
- Automated system power modes for optimal response vs consumption
- I2C communication interface with IRQ/RDY
- Standalone, event, and streaming modes
- Effective response times for critical trigger requirements:
- Proximity: 177 ms
- Touch: 216 ms
- Supply Voltage 1.71V to 3.5V
- Small package:
- QFN20 (3.00 x 3.00 x 0.55 mm) - 0.40 mm pitch
Applications
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- Appliance user interface (Buttons)
- Low power Wake-up Buttons/Proximity
- Door open/close switch