DA7280 datasheet(3/76 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

3 of 76

Contents

General Description ............................................................................................................................ 1

Key Features ........................................................................................................................................ 1

Applications ......................................................................................................................................... 1

System Diagrams ................................................................................................................................ 2

Figures.................................................................................................................................................. 4

Tables ................................................................................................................................................... 4

Legal ..................................................................................................................................................... 6

Product Family..................................................................................................................................... 6

Terms and Definitions................................................................................................................... 7

Block Diagram ............................................................................................................................... 8

Pinout ............................................................................................................................................. 9

Characteristics ............................................................................................................................ 10

4.1

Absolute Maximum Ratings ................................................................................................ 10

4.2

Recommended Operating Conditions ................................................................................. 10

4.3

Electrical Characteristics..................................................................................................... 11

4.4

Timing Characteristics......................................................................................................... 12

4.5

Thermal Characteristics ...................................................................................................... 13

Functional Description ............................................................................................................... 14

5.1

Features Description ........................................................................................................... 14

5.2

Functional Modes ................................................................................................................ 19

5.3

Resonant Frequency Tracking ............................................................................................ 23

5.4

Active Acceleration and Rapid Stop.................................................................................... 23

5.5

Wideband Frequency Control ............................................................................................. 25

5.6

Device Configuration and Playback .................................................................................... 25

5.7

Advanced Operation ........................................................................................................... 34

5.8

Waveform Memory.............................................................................................................. 42

5.9

General Data Format .......................................................................................................... 48

5.10 I2C Control Interface............................................................................................................ 51

Register Overview ....................................................................................................................... 54

6.1

Register Map ....................................................................................................................... 54

6.2

Register Descriptions .......................................................................................................... 56

Package Information ................................................................................................................... 71

7.1

WLCSP Package Outline .................................................................................................... 71

7.2

QFN Package Outline ......................................................................................................... 72

7.3

Moisture Sensitivity Level.................................................................................................... 73

7.4

WLCSP Handling ................................................................................................................ 73

7.5

Soldering Information .......................................................................................................... 73

Ordering Information .................................................................................................................. 74

Application Information .............................................................................................................. 74

10 Layout Guidelines ....................................................................................................................... 75

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