Vishay 8ETL06FPPbF - Manual (Page 4)

www.vishay.com For technical questions, contact: [email protected] Document Number: 94028
4 Revision: 08-Apr-08
8ETL06PbF/8ETL06FPPbF
Vishay High Power Products Ultralow V
F
Hyperfast Rectifier for
Discontinuous Mode PFC, 8 A FRED Pt TM
Fig. 5 - Maximum Thermal Impedance Z
thJC
Characteristics (FULL-PAK)
Fig. 6 - Maximum Allowable Case Temperature vs.
Average Forward Current
Fig. 7 - Maximum Allowable Case Temperature vs.
Average Forward Current (FULL-PAK)
Fig. 8 - Forward Power Loss Characteristics
Note
(1) Formula used: T
C
= T
J
- (Pd + Pd
REV
) x R
thJC
;
Pd = Forward power loss = I
F(AV)
x V
FM
at (I
F(AV)
/D) (see fig. 8);
Pd
REV
= Inverse power loss = V
R1
x I
R
(1 - D); I
R
at V
R1
= Rated V
R
0.01
0.1
10
0.00001 0.0001 0.001 0.01 0.1 1
t
1
- Rectangular Pulse Duration (s)
Z
thJC
- Thermal Impedance (°C/W)
.
.
P
DM
t
1
t
2
Notes:
1. Duty factor D = t
1
/t
2
2. Peak T
J
= P
DM
x Z
thJC
+ T
C
1
Single pulse
(thermal resistance)
10 100
D = 0.50
D = 0.20
D = 0.10
D = 0.05
D = 0.02
D = 0.01
0 2 6 10 14
Allo
wab
le Case
T
e
mperature (°C)
I
F(AV)
- Average Forward Current (A)
150
160
4 8
165
170
175
180
155
Square wave (D = 0.50)
Rated V
R
applied
See note (1)
DC
12 0 2 6 10 14
Allo
wab
le Case
T
e
mperature (°C)
I
F(AV)
- Average Forward Current (A)
80
100
4 8
120
140
160
180
Square wave (D = 0.50)
Rated V
R
applied
See note (1)
DC
12
0 2 6 10 12
A
v
era
g
e P
o
wer Loss (W)
I
F(AV)
- Average Forward Current (A)
0
4
D = 0.01
D = 0.02
D = 0.05
D = 0.10
D = 0.20
D = 0.50 DC
RMS limit
4 8
8
12
10
6
2