GENERAL DESCRIPTION
DA7280 offers wideband operation that fully utilizes the capabilities of newer wideband and multi-directional LRAs. Featuring wake-up on General Purpose Input (GPI) sequence triggers and/or I2C activity, DA7280 automatically returns to a low quiescent current state (typically 0.36 µA) between playbacks. At only 20 % of the idle current of the nearest alternative solution, DA7280 significantly extends battery life in mobile systems. To reduce system complexity, an integrated Waveform Memory allows haptic sequences to be preloaded to DA7280. Independent sequences can be triggered, with low-latency (0.75 ms), by up to three separate input pins without host interaction. Haptic sequences can also be streamed to DA7280 from an external source via I2C or pulse width modulated (PWM) signal. DA7280 actively monitors the back electromotive force (BEMF) while continuously driving and applies closed-loop Active Acceleration and Rapid Stopping for sharper clicks and a higher fidelity user experience.
Renesas Electronics
