DA7282 datasheet(3/75 Pages) RENESAS

3 / 75 page

LRA/ERM Ultra-Low Power Haptic Driver with Multiple Input Triggers and Integrated Waveform Memory

R15DS0041EE0330 Rev.3.30

June 16, 2026

CFR0011-120-00

Page 3

Contents

Features .................................................................................................................................................................. 1

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

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

Contents ................................................................................................................................................................. 3

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

Tables...................................................................................................................................................................... 5

Terms and Definitions ................................................................................................................................... 8

Product Family............................................................................................................................................... 8

Block Diagram................................................................................................................................................ 9

Pinout............................................................................................................................................................ 10

Specifications............................................................................................................................................... 11

5.1

Absolute Maximum Ratings................................................................................................................. 11

5.2

Recommended Operating Conditions ................................................................................................. 11

5.3

Electrical Specifications....................................................................................................................... 12

5.4

Timing Specifications........................................................................................................................... 13

5.5

Thermal Specifications ........................................................................................................................ 14

Functional Description................................................................................................................................ 15

6.1

Features Description............................................................................................................................ 15

6.1.1

Driving LRA and ERM Actuators........................................................................................... 15

6.1.2

Automatic LRA Resonant Frequency Tracking..................................................................... 15

6.2

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

6.2.1

System States ....................................................................................................................... 19

6.2.2

Operating Modes................................................................................................................... 20

6.2.3

Inactive Mode ........................................................................................................................ 20

6.2.4

Direct Register Override Mode.............................................................................................. 20

6.2.5

Pulse Width Modulation Mode .............................................................................................. 21

6.2.6

6.2.7

Edge Triggered Waveform Memory Mode............................................................................ 22

6.3

Resonant Frequency Tracking ............................................................................................................ 22

6.4

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

6.5

Wideband Frequency Control.............................................................................................................. 24

6.6

Device Configuration and Playback..................................................................................................... 24

6.6.1

Boot ....................................................................................................................................... 24

6.6.2

Actuator Setup....................................................................................................................... 25

6.6.3

Automatic Output Control...................................................................................................... 26

6.6.4

Waveform Memory Setup ..................................................................................................... 26

6.6.5

Mode Configuration............................................................................................................... 26

6.6.6

Events and Diagnostics......................................................................................................... 32

6.7

Advanced Operation............................................................................................................................ 33

6.7.1

Frequency Tracking .............................................................................................................. 33

6.7.2

Rapid Stop............................................................................................................................. 33

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