SLOS825E December 2012 – April 2018 DRV2605
The typical application for a haptic driver is in a touch-enabled system that already has an application processor which makes the decision on when to execute haptic effects.
The DRV2605 device can be used fully with I2C communications (either using RTP or the memory interface). A system designer can chose to use external triggers to play low-latency effects (such as from a physical button) or can decide to use the PWM interface. Figure 54 shows a typical haptic system implementation. The system designer should not use the internal regulator (REG) to power any external load.
A system designer can also implement audio-to-vibe. Figure 55 shows a typical haptic system implementation supporting audio-to-vibe.