DA7282
Description
DA7282 is a linear resonant actuator (LRA) and eccentric rotating mass (ERM) haptic driver offering automatic closed-loop LRA resonant frequency tracking. The feature guarantees consistency across LRA production tolerances, operating temperature, aging, and mechanical coupling. DA7282 offers wideband operation that fully utilizes the capabilities of newer wideband and multi-directional LRAs.
The differential output drive architecture and continuous actuator motion sensing enable efficient, calibration-free playback and minimize software plexity. Featuring wake-up on General Purpose Input (GPI) sequence triggers and/or I2C activity, DA7282 automatically returns to a low quiescent current state (typically 0.68 µA) between playbacks. In OFF mode the device consumes only 5 n A making it suitable for low power applications.
To reduce system plexity, an integrated Waveform Memory allows haptic sequences to be preloaded to DA7282. Independent sequences can be triggered, with...
