Peak Diode Recovery dv/dt Test Circuit & Waveforms
+
DUT
VDS
_
I SD
L
Driver
RG
Same Type
as DUT
VDD
VGS
• dv/dt controlled by RG
• ISD controlled by pulse period
Gate Pulse Width
--------------------------
VGS
D =
Gate Pulse Period
10V
( Driver )
IFM , Body Diode Forward Current
I SD
di/dt
( DUT )
IRM
Body Diode Reverse Current
Body Diode Recovery dv/dt
VSD
VDS
( DUT )
VDD
Body Diode
Forward Voltage Drop
©2002 Fairchild Semiconductor Corporation
Rev. B, September 2002