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Problem generating +100 V and -100 V using LT8301

Question asked by nitish111 on Aug 4, 2018
Latest reply on Aug 13, 2018 by George.Qian

I am trying to make a circuit that can generate +100V and -100V using LT8301 which can sink up to 20 mA. I am using one of the circuit used in the datasheet (LT8301_datasheet_schematics.PNG). For transformer I used VPH1-0076-R and connected such that I get 1:2 ratio from primary to secondary. I have attached my schematics (LT8301_Flyback.PNG) for the converter. I have also attached my PCB layout (LT8301_Flyback_Layout.PNG). When I soldered the component and power the circuit it shorted and LT8301 heated. I am not sure what I am doing wrong with the circuit. Input voltage of the circuit is 5 - 8 V. Any help would be appreciated.