Texas Instruments DRV2605L Haptic Drivers

Texas Instruments DRV2605L Haptic Drivers are a low-voltage haptic driver that includes a haptic-effect library and provides a closed-loop actuator-control system for high-quality haptic feedback for ERM and LRA. This schema helps improve actuator performance in terms of acceleration consistency, start time, and brake time and is accessible through a shared I2C compatible bus or PWM input signal. The Texas Instruments DRV2605L offers a licensed version of TouchSense 2200 software from Immersion that eliminates the need to design haptic waveforms because the software includes over 100 licensed effects (6 ERM libraries and 1 LRA library) and audio-to-vibe features. Additionally, the real-time playback mode allows the host processor to bypass the library playback engine and play waveforms directly from the host through I2C.

Features

  • Flexible haptic and vibration driver
    • LRA (Linear Resonance Actuator)
    • ERM (Eccentric Rotating Mass)
  • I2C-controlled digital playback engine
    • Waveform sequencer and trigger
    • Real-time playback mode through I2C
    • I2C dual-mode drive (open and closed loop)
  • Smart-loop architecture
    • Automatic overdrive and braking
    • Automatic resonance tracking and reporting (LRA only)
    • Automatic actuator diagnostic
    • Automatic level calibration
    • Wide support for actuator models
  • Licensed Immersion TouchSense® 2200 features
    • Integrated Immersion effect library
    • Audio-to-vibe
  • Drive compensation over battery discharge
  • Wide voltage operation (2V to 5.2V)
  • Efficient differential switching output drive
  • PWM input with 0% to 100% duty-cycle
  • Control range
  • Hardware trigger input
  • Fast start-up time
  • 1.8V compatible, VDD-tolerant digital interface

Applications

  • Mobile phones and tablets
  • Watches and wearable technology
  • Remote controls, mice, and peripheral devices
  • Touch-enabled devices
  • Industrial human-machine interfaces
  • Electronic Point of Sale (ePOS)

Functional Block Diagram

Texas Instruments DRV2605L Haptic Drivers
Inilathala: 2014-11-04 | Na-update: 2022-03-11