Post Go back to editing

LT8611 damaged with absent input voltage


we are using the LT8611 for charging a 12V lead acid battery.

When the  24V input voltage is removed the LT8611 will be destroyed. 

We added a diode like the recommendation from the LT8611 datasheet (page 18, figure 5) but this didn´t prevent the fault of the LT8611 when the input voltage is absent.

The schematic is attached below.

Any help is greatly appreciated,



correct spelling of Subject "damaged"
[edited by: ThomasStunder at 10:49 AM (GMT 0) on 3 Jul 2020]