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How to reduce VIPER17 start-up voltage (from the default 100 Vdc to 50 Vdc)

Question asked by montllo.ernest.001 on Aug 23, 2013
Latest reply on Aug 26, 2013 by montllo.ernest.001

I would like to operate a flyback converter at a wide rectified voltage range (from 50 Vdc to 380 Vdc).

Is there any way to reduce the Flyback start-up voltage of a VIPER? Although the Brown out protection can be deactivated and the flyback can effectively work at 50VDC rectified voltage (I have test it and it does work properly), it is not possible to start the driver at low voltage.

Any recommendation, external power-up circuit suggestion would be greatly appreciated.