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Haptic drivers promise better user experience

07 Mar 2013

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Fairchild FAH4830

Fairchild Semiconductor has unveiled a haptic driver that according to the company helps designers overcome the challenges of slow response times of touch screens and large battery drains. In addition, the FAH4830 claims to improve end-user experience through excellent recognition and a user-friendly interface, said the company.

The FAH4830 haptic driver provides a touch sensation when a user interacts with a touch screen. The sensory interaction between the user and mobile device—such as tablets, PCs, medical devices, video games systems and smartphones—creates a more local effect and assures the user of a correct "point-of-touch" on the screen.

Offering direct driving capability of eccentric rotating mass (ERM) motors and linear resonant actuators (LRA), the FAH4830 driver enables a vibrating sensation on point-of-contact. The typical driver wake-up time of the device is <30µS that helps to reduce latency and provides a fast haptic response.

The haptic driver features easy to implement, turn-key solution reduces BOM costs, low standby current (<500nA), fast wake-up time, register based I2C control for design flexibility, and filter and gain control for reduced PWM noise

Available in a 10L MLP, 3 x 3 x 0.8mm package, FAH4830 haptic driver is priced at $1.10 in 1,000 quantity pieces. Samples are available upon request with 8-12 weeks ARO delivery.

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