ADN8835 supply curren?

Dear sirs:

The datasheet page4 Ivdd=5mA(max) , the condition was PWM not switching, 

Consider the power trace, My customer hope to know the Ivdd =? if TEC 3A driver, PWM is switching

could you please bring it?

best regards

Jack.C

Top Replies

    •  Analog Employees 
    Nov 3, 2020 +1 suggested

    Hi ,

    Just to add, the supply current will be different depending on the input voltage, output load operating condition. Just to confirm, does the customer intend to have it measured with TEC current…

  • 0
    •  Analog Employees 
    on Oct 25, 2020 7:05 AM 30 days ago

    Hi ,

    Guaranteed by characterization, based on the datasheet the PWM is operating with minimum duty cycle of 6%, thus we can measure the supply current with PWM is switching. I will help verify it on bench and advise.

    Thanks!

    Noel

  • 0
    •  Analog Employees 
    on Nov 3, 2020 2:29 AM 21 days ago

    Hi ,

    Just to add, the supply current will be different depending on the input voltage, output load operating condition. Just to confirm, does the customer intend to have it measured with TEC current = 3A? With the said condition, it can be measured on 2 modes of operation - the cooling and heating mode. In cooling mode the PWM duty cycle is minimal compared with the heating mode as the switching regulator output is higher at heating mode. The minimum duty is 6% and maximum is 93% guaranteed by characterization. Thus, you can measure the range of the supply current.

    Thanks!

    Noel