© 2013 Fairchild Semiconductor Corporation
12
FEBFDD850N10LD_CS001
• Rev. 1.0.0
9.
Performance of Evaluation Board
9.1.
Switching Waveforms
Test Conditions
Connect the power resistor (85
Ω
) to CON2 and measure the voltage and current stress
on the BoostPak (FDD850N10LD) under the specified conditions below.
Table 5.
Test Result
Input Voltage (V)
Remarks
20.4
24
27.6
Power On
MOSFET
V
ds
(V)
62.4
62.4
63.2
Diode
V
ca
(V)
69.6
69.6
68.8
Inductor
I
L_max
(A)
2.56
2.36
2.20
I
L_min
(A)
0.00
0.08
0.04
Normal
MOSFET
V
ds
(V)
64.0
64.0
64.0
Diode
V
ca
(V)
76.8
74.4
72.0
Inductor
I
L_max
(A)
2.60
2.36
2.20
I
L_min
(A)
0.96
0.68
0.48
Power Off
MOSFET
V
ds
(V)
64.8
63.2
63.2
Diode
V
ca
(V)
75.2
73.6
72.0
Inductor
I
L_max
(A)
2.68
2.48
2.24
I
L_min
(A)
-0.20
-0.20
-0.24
