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DA7282

DA7282

Ultra-Low-Power, Wide-Bandwidth Haptic Driver

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Ultra-Low-Power, Wide-Bandwidth Haptic Driver

The DA7282 ultra-low power haptic driver, combines custom drive sequences, on- and off-resonance, at up to 1 kHz. The DA7282 drives both ERM and LRA (narrow and wideband) actuators and track resonance up to 300 Hz producing highly complex click/vibration touch effects in a wide range of applications.

The DA7282 differs from the DA7280 and DA7281 by providing the capability to go into a full standby mode, lowering current consumption to 5 nA.

 

 

Features

  • 5 nA standby current consumption
  • Wideband LRA driver: 25 Hz to 1 kHz with resonant mode
  • Frequency tracking support up to 300 Hz
  • Low-latency direct drive for haptics
  • On-the-fly diagnostics
  • Custom waveform sequences
  • Three methods of drive with Linux and C-like driver (HAL)

Benefits

  • 20x lower standby current, minimizing the drain on small battery systems
  • Constant resonance frequency tracking through continuous current drive monitoring
  • Ultra-low power consumption meaning longer battery life
  • Only 0.75 ms latency when responding from ultra-low power state
  • Drives LRAs off-resonance for custom effects, or dual-resonant systems for two-dimensional vibration
  • Enables wideband effects as well as supporting dual-resonant systems
  • Drives distinct haptic effects triggered by multiple inputs without need to wake the host processor
  • Detects issues with motor automatically
  • Frequency, time, amplitude triplets to program the waveform
  • Quick and easy software development using Dialog’s SmartCavas™ GUI

Applications

  • Smartphone
  • Gaming
  • Wearables
  • Portable computing systems (POS, Barcode Scanners etc.)
  • Computing – all-in-ones (display), Notebook PC
  • Any display driven consumer product
  • Automotive
  • Industrial
  • Medical
Package
12-pin WLCSP Package (0.4mm pitch)
12-pin QFN Package (0.65mm pitch)

Resources

Datasheets
Date Version
DA7282 datasheet

Diagrams

DA7282 System Diagram
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DA7282 Block Diagram

Evaluation support

The Dialog SmartCanvas™ advanced GUI tool can be used in conjunction with the DA7282 evaluation board to enable quick and easy configuration of the DA7282 along with a connected LRA or ERM. TheDA7282 evaluation kit is flexible enough to be used stand alone or wired into an existing customer application allowing it to be used to evaluate, design, and fine-tune haptic sequences easing system integration.

For technical support or information on how to buy, contact us directly.

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