AS5047U-HTST datasheet(40/51 Pages) AMSCO

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[v1-00] 2018-Oct-30

AS5047U − Application Information

15. Clear the memory content by writing 0x00 in the whole

non-volatile memory

16. Set the PROGVER = 1 to set the Guard band for the guard

band test.1

17. Refresh the non-volatile memory content with the OTP

content by setting OTPREF = 1

18. Read reg(0x0016) to reg(0x001B)

→ read register step2

19. Comparison of written content (settings and angle) with

content of read register step2. If a deviation in the

comparison occurs, the guard band test was not

successful. Reprogramming is not allowed!

Mandatory: guard band test

20. New power on cycle.

21. Read reg(0x0016) to Reg(0x001B)

→ read register step3

22. Comparison of written content (settings and angle) with

content of read register step3. If a deviation in the

comparison occurs, the power on test was not

successful. Reprogramming is not allowed!

23. If point 18 is correct, the programming was successful.

1. Guard band test:

Restricted to temperature range: 25 °C ± 20 °C

Right after the programming procedure (max. 1 hour with same conditions 25°C ± 20 °C), same VDD voltage.

The guard band test is only for the verification of the burned OTP fuses during the programming sequence.

A use of the guard band in other cases is not allowed.

AS5047U-HTST 데이터시트(PDF) 40 Page - ams AG