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DA7280

Low-power high-definition Haptic Driver for next generation human-machine interfaces

da7280-system-diagram.png

Low-power, wide-bandwidth Haptic Driver

The DA7280 High-Definition (HD) Haptic Driver combines custom drive sequences, on- and off-resonance, at up to 1kHz. The DA7280 can drive both ERM and LRA (narrow and wideband) actuators and track resonance up to 300Hz to drive the most complex click/vibration touch effects in a wide range of applications.

The DA7280 combines very low idle current consumption (360nA) with low-latency trigger inputs to minimize the delay after button presses when an application process is in deep sleep.

Features

360nA idle power mode with full I2C control and memory retention

Wideband LRA driver: 25Hz to 1kHz with resonant mode

Frequency tracking support up to 300Hz

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

Constant resonance frequency tracking through continuous current drive monitoring

Ultra-low power consumption means longer battery life

Only 0.75ms latency when responding from ultra-low power state

Drives LRAs off-resonance for custom effects, or dual-resonant systems for two-dimensional vibration

Enables wide-band effects as well as supporting dual-resonant systems

Drives distinct haptic effects triggered by multiple inputs without need to wake the apps 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

Packages

WLCSP-12 (0.4mm pitch)

QFN-12 (0.65mm pitch)

Diagrams

da7280-system-diagram.png

DA7280 System Diagram

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DA7280 Block Diagram

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Product Briefs and Summaries
Name Date Version
DA7280 Product Brief (549.53 KB) 14/09/2018 1.0
Datasheets
Name Date Version
DA7280 Datasheet (1.27 MB) 30/07/2019 3.0
Schematics
Name Date Version
DA7280 EVB Build BOM (95.11 KB) 14/09/2018 1.0
DA7280 EVB PCB Layout (2 MB) 14/09/2018 1.0
DA7280 EVB Schematic (284.09 KB) 14/12/2017 1.0
Software Resources
Name Date Version
DA7280 GUI (74.25 MB) (Registered users only) 09/10/2018 0.0.20
DA7280 GUI(7.58 KB) 10/09/2018 0.0.20
User guides and manuals
Name Date Version
DA7280 Performance Board User Manual (3.96 MB) 03/10/2018 1.3
Generating an LRA Configuration Script for DA7280 User Manual (1.14 MB) 24/10/2018 1.1
Videos
Name Date Version
DA7280 Eval board to buzz in 5 minutes,(Video Tutorial) (17.06 MB) 08/03/2018 1v0
da7280-eval-board.jpg

Evaluation support

The Dialog SmartCanvas™ GUI in conjunction with the DA7280 performance evaluation board enables quick and easy evaluation of the DA7280 along with the chosen LRA or ERM. With the attached 100g mass and an analog accelerometer the board is used to evaluate, design, and fine-tune your haptic sequences.

Video thumbnail, click to open and play

DA7280 Eval board to buzz in 5 minutes