Can I change the OTP register even temporarily after burned OTP fuse? (Specially, FS84/PF71)

[111kmw]

Hi,

Some FuSa PMIC' OTP register can be adjusted (even temporarily), so we can test the PMIC by changing the saftey option or detect range.

How about FS84 and PF71? IS this PMICs' OTP register also chagned?

If can, how to change or what document shoud I read?

Thanks,

[111kmw]

Hi, guoweisun!

Thanks for your reply.

I already recognized DEBUG mode and TBB mode.

PF71XX OTP register can be changed after OTP fuse burned?

AND PF71XX OTP register can't be changed on normal mode using I2C?

Please give me kindly answer!

Thanks,

[guoweisun]

That’s meaningless to change OTP register after finished OTP,in TBB mode OTP registers content can be changed to verify desired value of customers.

[guoweisun]

FS85 has similar function called DEBUG mode.

PF71XX has similar function called TBB mode.

You can search this KEY words in datasheet or EVB user guide.