I'm using TPS40210 to boost 24V to 58V, but the load is purely capacitive, a 8100uF 100V capacitor. The application is about pulsing a very strong pulse to a coil.
The circuit works very fine with resistive load and with optimal efficiency up to 97% at 0.3A output.
But when i replace the load with the big capacitor, the device keeps restarting at a period around 1 second (i can measure the voltage on the SS capacitor (pin 2) gets charge and discharge at this rate. and the voltage of the loading capacitor rises slowly, step by step.
Now a started to think that a boost converter like this is not suitable for this job. Could someone give me some advice?