Texas Instruments DRV8662 Piezo Haptic Driver

Texas Instruments announced their DRV8662 piezo haptic driver for mobile consumer and industrial designs. The TI DRV8662 features an integrated 105-V boost converter, power diode, and 50-V to 200-V peak-to-peak (Vpp) fully-differential amplifier. The DRV8662 is available now in a 4mm x 4mm x 0.9mm QFN package It is priced at $1.75 in quantities of 1,000. The DRV8662 haptics driver makes it easy to include effects like localized vibrations and frequency variations in both touch screen-input devices and those without a touch screen. The driver is ideal for mobile phones, tablets, computer accessories, home appliances, and industrial automation consoles.

Texas Instruments (TI) DRV8662 piezo haptic driver for mobile consumer and industrial designs

TI DRV8662 Piezo Haptic Driver Features

  • Drives up to 100 nF at 200 VPP and 300 Hz
  • Drives up to 330 nF at 100 VPP and 300 Hz
  • Drives up to 680 nF at 50 VPP and 300 Hz
  • Differential output
  • Integrated 105-V boost converter
  • Adjustable boost voltage
  • Adjustable current limit
  • Integrated power FET and power diode
  • Fast start up time of 1.5ms
  • Wide supply voltage range of 3.0 V to 5.5 V
  • 50-V to 200-V peak-to-peak (Vpp) fully-differential amplifier
  • 50% smaller than competitors
  • Lowers total solution cost by 40% compared to competing solutions
  • Efficient, transformer-less design
  • Enables fast start-up time (1.5 milliseconds)
  • Thin form-factor and high bandwidth
  • Drives piezo actuator capacitances from 50 to 680 nanofarad (nF) at 300 Hz
  • 1.8 V compatible digital pins
  • Thermal protection
  • Available in a 4 mm x 4 mm x 0.9 mm QFN package (RGP)

More info: Texas Instruments