buenos
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hi
in my design, there is a 13A/5V DCDC step-down converter. Other DCDC converters use this 5V as input, and also there is a lot of direct load on it.
The capacitor is 330uF/10V tantalium SMD.
So, this capacitor blown up and made short circuit, when my colleague disconnected and connected back the input power connector to the system, when it was already hot (around 80-90°C) after few hours of usage.
so, what was the cause? how to prevent this to happen in the product?
use bigger Irms capacitor? (there is already in the next version)
in my design, there is a 13A/5V DCDC step-down converter. Other DCDC converters use this 5V as input, and also there is a lot of direct load on it.
The capacitor is 330uF/10V tantalium SMD.
So, this capacitor blown up and made short circuit, when my colleague disconnected and connected back the input power connector to the system, when it was already hot (around 80-90°C) after few hours of usage.
so, what was the cause? how to prevent this to happen in the product?
use bigger Irms capacitor? (there is already in the next version)