Haptic IC Is Compact And Low Power

Dialog Semiconductor’s DA7280 haptic driver IC is capable of driving both eccentric rotating mass (ERM) and linear resonant actuators (LRA) motors, offering high definition wideband drive, 76% lower idle power consumption and a 50% reduction in external BOM count compared to existing devices on the market. Haptic systems today are limited by implementations done in standalone microcontrollers or haptic-enabled Power Management Integrated Circuits (PMICs).

 

As haptic drivers spend most of their time in standby/idle mode, the DA7280 was designed to utilize very low idle current consumption (360nA) to maximize battery life. Multiple general-purpose inputs allow low latency triggering of haptic sequences, making it an ideal solution for Android systems incorporating a sensor hub and application processor.

Fierce AI Week

Register today for Fierce AI Week - a free virtual event | August 10-12

Advances in AI and Machine Learning are adding an unprecedented level of intelligence to everything through capabilities such as speech processing and image & facial recognition. An essential event for design engineers and AI professionals, Engineering AI sessions during Fierce AI Week explore some of the most innovative real-world applications today, the technological advances that are accelerating adoption of AI and Machine Learning, and what the future holds for this game-changing technology.

 

With the DA7280, the application processor can remain in deep sleep while the sensor hub triggers up to six haptic events directly. Then, in active mode, the application processor can trigger or stream complex sequences using I2C. The device combines custom drive sequences at up to 1kHz for HD haptic effects, along with resonant frequency tracking for driving both LRA and ERM motors. This yields superior click/vibration effects in smartphone, automotive human interface systems, gaming and wearable applications, in addition to similar applications in the industrial space such as touchscreens, VR systems and personal medical devices.  

 

The DA7280 is available now in both a 12-ball, 1.5 mm x 1.5 mm x 0.6 mm WLCSP package and a 12-pin QFN package.  For more information, peruse the DA7280 datasheet.  

Read more on

Suggested Articles

Brain Corp. reported a sharp increase in autonomous robot usage in 2Q

Nvidia DGX accelerators helped train system from 150,000 chest X-rays with inference results in less than a second

One forecast from Cameron Chell: the best AI designers of the future won’t come from top universities