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Description

The DRV2605L device offers a licensed version of TouchSense 2200 software from Immersion which 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.

The smart-loop architecture inside the DRV2605L device allows simple auto-resonant drive for the LRA as well as feedback-optimized ERM drive allowing for automatic overdrive and braking. This architecture creates a simplified input waveform interface as well as reliable motor control and consistent motor performance. The DRV2605L device also features automatic transition to an open-loop system in the event that an LRA actuator is not generating a valid back-EMF voltage. When the LRA generates a valid back-EMF voltage, the DRV2605L device automatically synchronizes with the LRA.

Features

1. Flexible Haptic and Vibration Driver

  (1) LRA (Linear Resonance Actuator)

  (2) ERM (Eccentric Rotating Mass)

2. I2C-Controlled Digital Playback Engine

  (1) Waveform Sequencer and Trigger

  (2) Real-Time Playback Mode through I2C

http://www.ti.com/product/drv2605l