Data Sheet

FDB14N30 — N-Channel UniFET
TM
MOSFET
©2007 Fairchild Semiconductor Corporation
FDB14N30 Rev. C1
www.fairchildsemi.com
6
Figure 15. Peak Diode Recovery dv/dt Test Circuit & Waveforms
DUT
V
DS
+
_
Driver
R
G
Same Type
as DUT
V
GS
• dv/dt controlled by R
G
•I
SD
controlled by pulse period
V
DD
L
I
SD
10V
V
GS
( Driver )
I
SD
( DUT )
V
DS
( DUT )
V
DD
Body Diode
Forward Voltage Drop
V
SD
I
FM
, Body Diode Forward Current
Body Diode Reverse Current
I
RM
Body Diode Recovery dv/dt
di/dt
D =
Gate Pulse Width
Gate Pulse Period
--------------------------
DUT
V
DS
+
_
Driver
R
G
Same Type
as DUT
V
GS
• dv/dt controlled by R
G
•I
SD
controlled by pulse period
V
DD
LL
I
SD
10V
V
GS
( Driver )
I
SD
( DUT )
V
DS
( DUT )
V
DD
Body Diode
Forward Voltage Drop
V
SD
I
FM
, Body Diode Forward Current
Body Diode Reverse Current
I
RM
Body Diode Recovery dv/dt
di/dt
D =
Gate Pulse Width
Gate Pulse Period
--------------------------
D =
Gate Pulse Width
Gate Pulse Period
--------------------------