IQS396
The IQS396 is a ProxFusion® sensing device with an integrated haptics driver capable of driving Linear Resonant Actuator (LRA) motors. A ProxFusion channel event will trigger the haptic driver to allow effective feedback to the user. Standalone operation allows basic configuration via external strap options. The I2C mode features a closed-loop autoresonance algorithm. The autoresonance algorithm matches the resonant frequency of the driven motor in real time. Power consumption is optimised by automatic power mode management and an ultra-low power mode.
Main Features
- Standalone Mode
- Sensor event triggers haptic feedback
- Strap options allow for:
- Sensitivity adjustment
- Report rate adjustment
- Digital output (active low, push-pull)
- I2C Mode
- I2C interface - Up to Fast Mode Plus (1 MHz)
- Convert to a standalone mode after power-on configuration
- Fire-and-forget interface
- Trigger haptic via sensor event or I2C command
- Real-time closed-loop autoresonance
- Internal or external H-bridge
- Selectable LRA drive frequency
- Internal H-bridge protections
- Ultra-low power mode
- Automatic power mode management
- Design simplicity
- PC software for configuration and debugging
- Supply Voltage: 1.71 V to 3.6 V
- QFN20 Package: (3 × 3 × 0.55 mm) - 0.4 mm pitch
1.2 Applications
- User interface touch buttons
- Doorbells and keypads