• State
  • Replies 1 reply
  • Subscribers 38 subscribers
  • Views 73 views
  • Users 0 members are here
Support feedback
Options
Options
Related

TIDA-010949: About Power consumption

JO
Prodigy 10 points
Part Number: TIDA-010949


Tool/software:

Hello,

I am working with the TIDA-010949 optimizer and I have some questions:

Question 1. The device’s current/voltage specifications seem to support more than 600 W, but the maximum power is limited to 600 W. What is the reason for this limitation? Is it safe to operate at 700 W?

Question 2. For testing purposes, I would like to change the MPPT maximum power value during debugging. Which parameter in the firmware should I modify? It seems that adjusting the recovery value might be enough—do I only need to change that value?

Question 3. I am currently testing with Lab1. The input voltage is set to 20 V with a 2 A current limit. In debug mode, I am toggling OPTIMIZER_Converter_EN = 1,0, OPTIMIZER_BUCK_Config = 1, OPTIMIZER_short_mode = 1,0, and adjusting OPTIMIZER_Duty_new. Under these test conditions, the L1 inductor sometimes starts smoking. What could be the cause of this issue?

Thank you.

  • 0
    TI__Intellectual 1430 points

    Hi Jo,

    Sorry for the late reply.

    For Q1, the thermal of FETs limits the board for 700W, but if you add a heatsink to the board, it may be able to support this.

    For Q2, For MPPT, i think you don't need to change. 

    For Q3, it could be the reason that L1 is overheating, please use a thermal camera to see the temperature. But for this voltage and current, it should be okay, but also please check if other components are smoking. 

    Thanks,

    Bowen