Piezo Haptic Drivers Deliver Improved Gaming and Feedback

Aug. 22, 2022

Marc-Andre Morin from Boréas Technologies highlights haptic support that can improve applications such as gaming in mobile devices.

William G. Wong

Related To: Electronic Design

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Boréas Technologies produces a range of low-power piezo drivers for mobile haptic applications such as smartphones and handheld gaming devices. The BOS1901 high-voltage, low-power piezo driver is one example that's highlighted by Marc-Andre Morin is this video.

The BOS1901 (see figure) can drive 100 nF at 190 V p-p and 300 Hz using only 350 mW of power. It can handle a drive capacitive load up to 820 nF and supports energy recovery. In addition, the driver has an integrated digital front end with SPI interface. The chip includes a 64-sample internal FIFO Interface. Startup is under 300 µs.

The BOS1901 is a low-power, high-voltage piezo haptic driver.

The WLCSP chip has a 2.1- × 2.2-mm footprint and is also available in a QFN 4- × 4-mm package.

William G. Wong | Senior Content Director - Electronic Design and Microwaves & RF

I am Editor of Electronic Design focusing on embedded, software, and systems. As Senior Content Director, I also manage Microwaves & RF and I work with a great team of editors to provide engineers, programmers, developers and technical managers with interesting and useful articles and videos on a regular basis. Check out our free newsletters to see the latest content.

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I earned a Bachelor of Electrical Engineering at the Georgia Institute of Technology and a Masters in Computer Science from Rutgers University. I still do a bit of programming using everything from C and C++ to Rust and Ada/SPARK. I do a bit of PHP programming for Drupal websites. I have posted a few Drupal modules.

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