Datasheet

STPS340U/S/B
2/7
Symbol Tests Conditions Tests Conditions Min. Typ. Max. Unit
I
R
*
Reverse leakage current
Tj=25°CV
R
=V
RRM
20 µA
Tj = 125°CV
R
=V
RRM
210mA
V
F
*
Forward voltage drop
Tj=25°CI
F
=3A
0.63 V
Tj=25°CI
F
=6A
0.84
Tj = 125°CI
F
=3A
0.52 0.57
Tj = 125°CI
F
=6A
0.63 0.72
STATIC ELECTRICAL CHARACTERISTICS
Pulse test : * tp = 380 µs, δ <2%
To evaluate the maximum conduction losses use the following equation :
P=0.42xI
F(AV)
+ 0.050 I
F
2
(RMS)
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
0.0
0.5
1.0
1.5
2.0
2.5
IF(av) (A)
PF(av)(W)
T
δ
=tp/T
tp
δ = 1
δ = 0.5
δ = 0.2
δ = 0.1
δ = 0.05
Fig. 1: Average forward power dissipation versus
average forward current.
0 25 50 75 100 125 150
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
Tamb(°C)
IF(av)(A)
Rth(j-a)=65°C/W
Rth(j-a)=Rth(j-l)
(SMB/SMC)
Rth(j-a)=Rth(j-c)
(DPAK)
T
δ
=tp/T
tp
Fig. 2: Average current versus ambient
temperature (δ =0.5).
Symbol Parameter Value Unit
R
th (j-l)
Junction to leads SMC
20 °C/W
SMB
25
R
th (j-c)
Junction to case DPAK
5.5 °C/W
THERMAL RESISTANCES
0
0.2
0.4
0.6
0.8
1
1.2
0 25 50 75 100 125 150
T (°C)
j
P(t)
P (25°C)
ARM p
ARM
Fig. 4: Normalized avalanche power derating
versus junction temperature.
0.001
0.01
0.10.01 1
0.1
10 100 1000
1
t (µs)
p
P(t)
P (1µs)
ARM p
ARM
Fig. 3: Normalized avalanche power derating
versus pulse duration.