[CYBT-333032-02] Power control of BT module

Tip / Sign in to post questions, reply, level up, and achieve exciting badges. Know more

cross mob
YoJa_3107936
Level 5
Level 5
Distributor - Macnica (Japan)
100 sign-ins 50 sign-ins First like given

Hi everyone

Customer wants to confirm below information:

When dropping the power supply (VDDIN) voltage of the BT module,

is it OK to drop the VDDIN power supply immediately without setting a reset?

(* At power-on, after VDDIN stabilizes, wait for + 50ms to release reset.)

Thanks

Yang

0 Likes
1 Solution
AnjanaM_61
Moderator
Moderator
Moderator
10 questions asked 5 comments on KBA First comment on KBA

Hi YoJa_3107936 ,

It is OK only if VDDIN is driven to real low. If VDDIN isn’t driven to real low and then driven to high, the chip is possible in uncertain status (“At power-on, after VDDIN stabilizes, wait for + 50ms to release reset” won’t be met with).

Regards,

Anjana

View solution in original post

1 Reply
AnjanaM_61
Moderator
Moderator
Moderator
10 questions asked 5 comments on KBA First comment on KBA

Hi YoJa_3107936 ,

It is OK only if VDDIN is driven to real low. If VDDIN isn’t driven to real low and then driven to high, the chip is possible in uncertain status (“At power-on, after VDDIN stabilizes, wait for + 50ms to release reset” won’t be met with).

Regards,

Anjana