DA7280 datasheet(18/76 Pages) DIALOG

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DA7280

LRA/ERM Haptic Driver with Multiple Input Triggers,

Integrated Waveform Memory and Wideband Support

Datasheet

Revision 3.0

30-Jul-2019

CFR0011-120-00

18 of 76

Small Solution Footprint

Available in an ultra-small 1.35 mm x 1.75 mm, 0.4 mm pitch, 0.545 mm height, 3 x 4 WLCSP, or a

3.0 mm x 3.0 mm, 0.65 mm pitch, 0.78 mm height, 12 lead QFN package, DA7280 minimizes the

required PCB size and overall solution cost. In the typical application case, only a single 100 nF

decoupling capacitor is required. See Section 9 and Section 10.

Additional Features

DA7280 also features:

● A temperature and supply stable (±1.5 %) internal oscillator which guarantees consistent haptic

playback in the frequency domain over a wide range of operating conditions.

● Automatic over-temperature warning and shutdown capability.

● Low pad leakage current (typ. < 50 nA, for all pads combined).

● Low idle current from VDDIO (typ. 130 nA at 1.8 V).

● I2C operation down to VDDIO = 1.35 V

● Output PWM frequency, at 187.5 kHz, is 167.5 kHz away from the audio band and at a non-audio

sample rate multiple. This prevents audible fold back via supply disturbance common in near-

audio-band switching haptic drivers.

● Easy to use Dialog SmartCanvas™ GUI with a user tab for fast device setup without the need to

directly interact with registers and an intuitive graphical environment for Waveform Memory

editing and visualization.

DA7280 Datasheet(PDF) 18 Page - Dialog Semiconductor