[Urgent] LTC6813 V+

Hi

I'm a DFAE in Japan. Our customer develops BMS with LTC6813. I receive questions from him as follows. Could you please let me know the answers?

Q1. When V+ become below +16V, what would LTC6813 happen?

Q2. Under below +16V condition, is it OK to continue to supply +5V to VREG?

I'm sorry, but we are in a hurry to answer because the customer's development schedule is short.
Regards,
Hiroyuki
  • +1
    •  Analog Employees 
    on Jan 9, 2020 1:05 PM

    Hi ,

    A1: As mentioned in the datasheet, range for V+ is from 16-90V. Behavior of IC would be unpredictable below 16V and we don't recommend to operate it in that range.

    A2 It is okay to supply +5V on Vreg. but this will keep the iso-SPI/SPI comm woke-up and you will have higher current consumption in sleep state.

    Regards