DA7282 Datasheet PDF | Renesas Electronics

Renesas Electronics DA7282

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. The differential output drive architecture and continuous actuator motion sensing enable efficient, calibration-free playback and minimize software complexity.

Part No.	DA7282
Datasheet	DA7282 Download
Manufacturer	Renesas Electronics
Description	LRA/ERM Ultra-Low Power Haptic Driver
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GENERAL DESCRIPTION

DA7282 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, DA7282 automatically returns to a low quiescent current state (typically 0.68 µA) between playbacks. In OFF mode the device consumes only 5 nA making it suitable for low power applications. To reduce system complexity, an integrated Waveform Memory allows haptic sequences to be preloaded to DA7282. 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 DA7282 from an external source via I2C or pulse width modulated (PWM) signals. DA7282 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. This offers signif...