PCF85063A: OS bit goes high when there is a dip in supply.

[monishkora]

We are using PCF85063A modularly. The problem we are facing is  - the OS bit becomes high even for the slightest dip in supply. Please suggest some solution to fix it.

[guoweisun]

Please share with us your schematic firstly!

[monishkora]

PFA schematic.

[monishkora]

Our yearly consumption is 5000 pieces and we have already released the purchase order. So please look into this as soon as possible.

[guoweisun]

For your schematic:

1:Selectable integrated oscillator load

capacitors for CL = 7 pF or CL = 12.5 pF,you can use them instead your 10pF.

2: what do you mean slightest dip in supply? You use the battery do you monitor this voltage of battery? Can you catch the VBAT/INT/ CLKOUT when issue happened?