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DA7280 - LRA/ERM Haptic Driver

Description

DA7280 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.

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 = 0.36 µA.
  • No software requirements with embedded operation.
  • Differential PWM output drive.
  • Current driven system to deliver constant actuator power.
  • Configurable EMI suppression.
  • Automatic short circuit protection.
  • Ultra-low latency (0.1.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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DA7280 LRA/ERM Haptic Driver with Multiple Input Triggers, Integrated Waveform Memory and Wideband Support General Description DA7280 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. DA7280 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 complexity.
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