Tool/software:
Hi TI team,
Does it make sense to use the TPS2492 IC to parallel the input source and control, instead of ballast resistors?
- Remark : www.ti.com/.../slva250.pdf
1. Input source : 48VDC ± 2% tolerance (47.04V~48.96V)
- voltage difference : 1.92V
2. Output load 6A max per each input source.
- total 12A load
3. I want to control the output current to a maximum of 6A using the TPS2492 IC in the worst condition.
- Higher voltage case (48.96V) of the TPS2492 ICs reaches 6A, the IC activates its current limit and starts charging the Timer pin.
At this point, I have add a resistor to the Timer pin to discharge its voltage. ( = the IC can not gate off due to parallel input condition)
So, the TPS2492 still holds the gate voltage even when it reaches the current limit condition.
- Lower voltage case (47.04V) of the TPS2492 ICs is increasing output current because, the other one has power limit condition.
How about this use case of the TPS2492 IC instead of ballast resistors? If it works my intention, I expect better performance efficiency and thermal.
Thank you.
