
The new IQS390 is a versatile haptic driver IC designed to provide highly customizable and efficient feedback through linear resonant actuator (LRA) motors. It offers I2C and PWM operation modes, allowing engineers to select the best mode for their applications, whether they require high-speed communication, or more control options for feedback intensity and duration. I2C Mode offers high-speed communication and real-time motor frequency adjustments, while the PWM Mode allows for external pulse-width modulated (PWM) signal inputs and additional control over motor direction.
The IQS390 Haptic Driver for Linear Resonant Actuators (LRA) is ideal for applications that need fine-tuned, low-power haptic responses, such as mobile devices, wearables, and automotive controls. Key features include ultra-low power consumption for extended battery life, especially in portable devices, and flexible integration with PC software tools for easy configuration and optimization. Developers will also benefit from internal and external H-bridge configurations, real-time closed-loop auto-resonance technology, and selectable LRA drive frequencies.

The new IQS396 ccombines Azoteq's ProxFusion sensor technology with an integrated haptics driver, offering a comprehensive solution that integrates both touch sensing and haptic feedback in a single IC. The touch sensing can be either through capacitive sensing or inductive sensing. This combination makes it an ideal choice for interactive devices that require both user input sensing and responsive tactile feedback. The IQS396 supports I2C and Standalone modes, allowing event-based haptic feedback triggered by sensor actions or external commands.
The standalone Mode in the IQS396 ProxFusion Sensor allows for event-driven haptic feedback triggered by sensor actions, such as proximity detection, while the I2C Mode supports high-speed communication and real-time motor frequency adjustments. Advanced haptic features include selectable LRA drive frequency and built-in protection for the internal H-bridge. These can be implemented easily with PC software tools for configuration, debugging, and optimization.
Like the IQS390, the IQS396 supports ultra-low power, and offers automatic power mode management for optimized energy consumption. Both ICs are designed with energy efficiency in mind, ensuring long battery life in portable and battery-powered devices, and are easy to integrate into existing product platforms, with extensive developer support, including detailed datasheets, programming guides, and prototype kits. Their versatility makes them ideal for enhancing user interfaces in a wide range of products.
"The IQS390 and IQS396 are a natural expansion of our product portfolio, making Azoteq a one-stop solution provider for sense and sensation. The IQS396 is an integrated sensor and driver, providing a single IC alternative to electromechanical switches," says Jean Viljoen, Chief Sales Officer at Azoteq.
Both devices are available in QFN20 packages (3×3×0.55mm) with 0.4mm pitch for efficient PCB integration with 1.71V to 3.6V supply options. Azoteq provides developers with a comprehensive range of resources, including prototype design kits, engineering support for system integration and troubleshooting, and PC-based software tools for optimization and debugging.
With more than a decade of expertise in capacitive sensing, Azoteq offers multisensory technologies integrated into single ICs. The company's ProxFusion technology offers a unique combination of sensing modalities, including capacitive, Hall-effect, IR, PIR, inductive, and ambient-light sensors. Azoteq operates design and manufacturing centers in South Africa and Asia, with a global network of sales offices and distributors.
www.azoteq.com