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DRV2605: Method to input setting pattern on DRV2605 EVM

Danny Kwon
Intellectual 1900 points
Part Number: DRV2605

Can you explain the method how to input setting pattern on DRV2605 EVM ?

My customer will use DRV2605 as RTP mode/open loop and the pattern is as below.

WR_REG,0xB4,0x01,0x01,0x85

WR_REG,0xB4,0x01,0x01,0x05

WR_REG,0xB4,0x01,0x1A,0x80

WR_REG,0xB4,0x01,0x17,0x55

WR_REG,0xB4,0x01,0x1D,0x81

WR_REG,0xB4,0x01,0x20,0x31

WR_REG,0xB4,0x01,0x02,0x7F

wait,12 

 

WR_REG,0xB4,0x01,0x02,0x81

wait,10

 

WR_REG,0xB4,0x01,0x17,0x2A 

WR_REG,0xB4,0x01,0x02,0x7F 

wait,10 

 

WR_REG,0xB4,0x01,0x17,0x15

WR_REG,0xB4,0x01,0x02,0x81 

wait,10 

 

WR_REG,0xB4,0x01,0x17,0x02 

WR_REG,0xB4,0x01,0x02,0x81 

wait,5 

 

WR_REG,0xB4,0x01,0x02,0x00

END_DATASET

  • 0
    TI__Guru** 108765 points

    Hi Danny,

    DRV2605 is not able to work in RTP Mode while set to Open Loop LRA, it only works in PWM input mode. Perhaps you should take a look at DRV2605L for this application.
    Below you can see the differences between the two devices in Open Loop LRA.
    DRV2605:


    DRV2605L:


    Best regards,
    -Ivan Salazar
    Applications Engineer - Low Power Audio & Actuators