Hi All;
I have issue at ceramic capacitor in my design.
The capacitor is, 1uF, 50VDC, 0603, X5R Samsung capacitor (CL10A105KB8NNNC)
Let me clarify issue.
- I have a power supply, 24VDC output, max current capacity is 15A.
- I have loads which are LED Drivers that can be controlled by a sytem. Each load is max. 2W, total max. qty of load is 150 qty. Loads are connected as parallel to power supply.
- Loads's can be controlled by system, thus a load can be 2W, 1.7W, 1.2W, 0.8W, 0.3W at any time.
- My capacitor is placed as decoupling cap(MLCC) at VCC-GND terminals at input side of loads. ,
- Distance between LED Drivers and power supply has 50 meters.
When I set load power to 0.5W, everything is fine. Total power is max 75W.
When I set load power to 2W, input capacitor blows and it becomes short-circuited. Total max power is 300W
So, when total power consumption of load is low, everything is fine.
However, when total power consumption becomes higler as drive with 2W, the cap at input side of LED driver very randomly.
What can cause this? And do you have any solution to eliminate of given issue.
Best Regards;
I have issue at ceramic capacitor in my design.
The capacitor is, 1uF, 50VDC, 0603, X5R Samsung capacitor (CL10A105KB8NNNC)
Let me clarify issue.
- I have a power supply, 24VDC output, max current capacity is 15A.
- I have loads which are LED Drivers that can be controlled by a sytem. Each load is max. 2W, total max. qty of load is 150 qty. Loads are connected as parallel to power supply.
- Loads's can be controlled by system, thus a load can be 2W, 1.7W, 1.2W, 0.8W, 0.3W at any time.
- My capacitor is placed as decoupling cap(MLCC) at VCC-GND terminals at input side of loads. ,
- Distance between LED Drivers and power supply has 50 meters.
When I set load power to 0.5W, everything is fine. Total power is max 75W.
When I set load power to 2W, input capacitor blows and it becomes short-circuited. Total max power is 300W
So, when total power consumption of load is low, everything is fine.
However, when total power consumption becomes higler as drive with 2W, the cap at input side of LED driver very randomly.
What can cause this? And do you have any solution to eliminate of given issue.
Best Regards;