IQS398A
The IQS398A 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. The device offers an I2C mode for haptic and sensor configuration and a standalone mode with GPIO button event output.
Main Features
- Adjustable actuation point
- Up to 8 KHz Sampling
- Activation hysteresis
- Rapid trigger dynamic actuation
- Standalone Mode:
- Sensor event triggers haptic feedback
- 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 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
Applications
- Haptic Mouse Buttons