LAUNCHXL-CC3235SF: Configure Boot Mode | SOP

Brahim Salh

Part Number: LAUNCHXL-CC3235SF
Other Parts Discussed in Thread: CC3235MODSF

Hi TI,

In the CC3235MODx Typical Application Schematic (Figure 10-3 in datasheet), Does it make sense to connect SOP1,2 and 3 to VBAT_CC which can be unstable? I am asking because I am using CC3235MODSF in a PCB that I am designing so I am confused about this VBAT_CC.

Best Regards,

Brahim

over 4 years ago

0 Vincent Rodriguez over 4 years ago

TI__Mastermind 28285 points

Brahim,

The SoP pins are only sensed on power up, and you can refer to the table listed for more info. VCC should be stable for proper operation of our device.

BR,

Vince

0 Brahim Salh over 4 years ago in reply to Vincent Rodriguez

Intellectual 290 points

Hi Vince,

Vbat is not always stable so why it is connected to the SoP pins ?

BR,

Brahim

0 Vincent Rodriguez over 4 years ago in reply to Brahim Salh

TI__Mastermind 28285 points

VBAT is also supplying power the device. if this is not stable then the device will not operate properly.

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LAUNCHXL-CC3235SF: Configure Boot Mode | SOP