Ultra-Low-Power, Wide-Bandwidth Haptic Driver
DA7282超低功率触觉司机,结合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
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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
Packages
WLCSP-12 (0.4mm pitch)
QFN-12 (0.65mm pitch)
Diagrams
DA7282 System Diagram
DA7282 Block Diagram
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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.