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Renesas Electronics DA7282 Wide-Bandwidth Haptic Drivers

Renesas Electronics DA7282 Wide-Bandwidth Haptic Drivers provide precise and consistent tactile feedback. The Renesas Electronics DA7282 is a cutting-edge linear resonant actuator (LRA) and eccentric rotating mass (ERM) haptic driver. The device offers automatic closed-loop LRA resonant frequency tracking, ensuring uniformity across various production tolerances. The DA7282 delivers a wideband operation, fully exploiting the potential of newer wideband and multi-directional LRAs.

Features

  • LRA or ERM drive capability
  • Automatic LRA resonant frequency tracking
  • Wideband LRA support
  • I2C and PWM input streaming
  • Low latency (0.75 ms) I2C/GPI wake-up from low power consumption IDLE state, IQ = 0.68µA
  • Ultra-low latency (0.15ms) wake-up from STANDBY state, IQ = 0.8mA
  • Three GPI pins for triggering up to six independent haptic sequences
  • On-board Waveform Memory with amplitude, time, and frequency control
  • Actuator diagnostics and fault handling
  • Configurable EMI suppression
  • Differential PWM output drive
  • Active Acceleration and Rapid Stop technology for high-fidelity haptic feedback
  • No software requirements with embedded operation
  • Current driven system to deliver constant actuator power
  • Automatic short circuit protection
  • Ultra-low power consumption, IQ = 5nA, when the device is disabled
  • Ultra-low power consumption, IQ = 0.68µA, with state retention in IDLE state
  • Supply monitoring, reporting, and automatic output limiting
  • Open- and closed-loop modes
  • Custom wave drive support
  • Small solution footprint requiring only one decoupling capacitor in WLCSP and QFN

Applications

  • Smartphones, wearables, and hearables
  • Computer peripherals
  • Gaming
  • Automotive and Industrial
  • Virtual and augmented reality controllers
  • Disposable consumer products

Block Diagram

Block Diagram - Renesas Electronics DA7282 Wide-Bandwidth Haptic Drivers

Videos

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Evaluation Board

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Flexible enough to be used stand-alone or wired into an existing application and allows to evaluate.

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Additional Resources

Publicado: 2023-03-16 | Actualizado: 2023-03-29