The document introduces the WearMax chip, which is a sensor fusion device that can detect wear or presence through capacitive sensing. It has applications in detecting when headphones, earbuds, or wearables are being worn in order to automatically control functions like playing audio or saving power. The chip supports up to 9 sensor connections, integrated tuning and filtering, and programming for custom configurations.

1. MEET THE WEARMAX® CHIP
This time we were first
Pioneer in single chip, multi-sensor solutions.
Two decades of capacitive sensing and LED driver expertise.

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MEET THE WEARMAX® CHIP
IQS7223A >
The IQS7223 chip is a sensor fusion device for various long-term wear or
presence detection purposes. The sensor is fully I2C compatible and on-chip
calculations enable the IC to respond effectively even in lowest power modes.

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THE
HEADPHONES SOLUTION
Detect whether headset is in use to automatically
play or pause sound and save power.

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THE
WEARABLE SOLUTION
Detect whether the wearable is being warn to automatically save
power. Includes a reference channel and on-chip temperature tracking
to compensate for any temperature or humidity drift that might
influence capacitive sensing.

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THE
EARBUD SOLUTION
Our capacitive sensor can detect whether
earbuds are being worn to automatically play or
pause music to save power.

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THE SPECS
DATASHEET >
> Highly flexible ProxFusion® device
> 9 sensor pad connections (QFN-20) / 8 sensor pad connections (WLCSP-18)
> Dedicated WearMax™ Sensor implementation for optimal wear / presence
detection
> Built-in basic functions:
• Dedicated Intelligent Wear Output
• Differential measurements (Advanced reference channel capabilities)
• Automatic tuning
• Noise filtering
• Debounce & hysteresis
> Design simplicity
• PC Software for debugging and obtaining optimal settings and
performance
• One-time programmable settings for custom power-on IC configuration
• Auto-run from programmed settings for simplified integration

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THE OTHER CHIPS
The
Trackpad Chip
The
Earbud Chip
The
Keypad Chip
The
Champion Chip
The
Wearable Chip
The
Appliance Chip

9. THANK YOU