ALPHA & OMEGA S E M I C O N D U C T O R AOK065V120X2Test Circuits and Waveforms Gate Charge Test Circuit & Waveform Gate Charge Test Circuits and Waveforms Vgs Qg + 10V VDC +Vds Qgs Qgd VDC - DUT - Vgs Ig Charge Resistive Switc Resistive Switching T hing Test Circuit & est Circuit and W Waveform aveforms s RL Vds Vds + 90% Vgs DUT Vdd VDC Rg - 10% Vgs Vgs t t d(on) r td(off) tf ton toff Unclamped Inductive Switching Unclamped Inductive Switching (UIS) T (UIS) Test Circuit est Circuit and W & Wavefor aveforms ms L 2 Vds E = 1/2 LI AR AR BVDSS Id Vds Vgs + Vgs I VDC Vdd AR Rg - Id DUT Vgs Vgs Diode Recover Gate Charge T y Test Circuit & Wav est Circuits and W eforms aveforms Vds + Qrr = - Idt DUT Vgs Vds - L Isd trr Isd IF dI/dt + Vgs IRM Vdd VDC- Vdd Ig Vds Rev. 1.0 March 2020 www.aosmd.com Page 7 of 9