TPS3808: SENSE issue

Jeff YANG

Part Number: TPS3808

Tool/software:

Hi,

I encountered an issue: pin 5 (SENSE) has 1.8V, but pin 1 does not output 1.8V. Could it be that the 100k pull-down resistor R2M6 to ground needs to be removed?

Thanks!

Jeff

1 month ago

0 Jesse Villanueva 1 month ago

TI__Mastermind 18980 points

Hi Jeff,

With R2M7 10k and R2M6 100k, the expected voltage on SYS_PWROK is ~1.6V, if 1.8V is needed, the R2M6 can be removed or R2M6 can be increased into the mega ohm range if a pull down is needed.

Jesse

Clock & timing

Clock & timing forum

TPS3808: SENSE issue