Page 1
®
HIGH FREQUENCY SECONDARY RECTIFIERS
MAJOR PRODUCTS CHARACTERISTICS
STTH8003CY
I
F(AV)
V
RRM
(max) 1 V
V
F
2x40 A
300 V
trr (max) 60 ns
FEATURES AND BENEFITS
COMBINES HIGHEST RECOVERY AND
n
VOLTAGE PERFORMANCE.
ULTRA-FAST, SOFT AND NOISE-FREE
n
RECOVERY.
n
HIGH OPERATING TEMPERATURE THANKS
A2
K
A1
TO LOW LEAKAGE CURRENT.
DESCRIPTION
Dual rectifiers suited for Switch Mode Power
Max247
Supply and high frequency DC to DC converters.
Packaged in Max247, this device is intended for
use in low voltage, high frequency inverters, free
wheeling operation, welding equipment and
telecom power supplies.
ABSOLUTE RATINGS (limiting values)
Symbol Parameter Value Unit
V
RRM
I
F(RMS)
I
F(AV)
Repetitive peak reverse voltage
RMS forward current
Average forward cur-
rent
I
FSM
I
RSM
T
stg
Tj
September 2002 - Ed: 3A
Surge non repetitive forward current tp = 10 ms
Non repetitive avalanche current tp = 100 µs
Storage temperature range
Maximum operating junction temperature
Tc = 105°C
δ = 0.5
Per diode
Per device
sinusoidal
square
300 V
50 A
40
A
80
400 A
4A
-55 +175 °C
+ 175 °C
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STTH8003CY
THERMAL RESISTANCES
Symbol Parameter Value Unit
R
R
th (j-c)
th (c)
Junction to case thermal resistance Per diode
Total
Coupling
0.8
°C/W
0.5
0.2 °C/W
STATIC ELECTRICAL CHARACTERISTICS
Symbol Parameter Tests Conditions Min. Typ. Max. Unit
Reverse leakage current V
*
I
R
Forward voltage drop I
**
V
F
= 300 V Tj = 25°C
R
Tj = 125°C
= 40A Tj=25°C
F
Tj = 125°C
80 µA
80 800
1.25 V
0.85 1
Pulse test : * tp=5ms,δ<2%
** tp = 380 µs, δ <2%
To evaluate the maximum conduction losses use the following equation :
P=0.75xI
F(AV)
+ 0.0062 I
F(RMS)
2
DYNAMIC ELECTRICAL CHARACTERISTICS
Symbol Tests Conditions Min. Typ. Max. Unit
= 0.5 A Irr = 0.25 A IR= 1 A Tj = 25°C
S
trr
I
RM
factor
tfr
I
F
=1A dIF/dt=-50A/µsVR=30V
I
F
Vcc = 200 V IF=40A dIF/dt = -200 A/µs Tj = 125°C
I
=40A dIF/dt = 200 A/µs,
F
Tj = 25°C
0.3 -
50 ns
60
13 A
450 ns
VFR= 1.1xVFmax
V
FP
5V
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STTH8003CY
Fig. 1: Conduction losses versus average current
(per diode)
P(W)
55
50
45
40
35
δ = 0.2
δ = 0.1
δ = 0.05
δ = 0.5
δ = 1
30
25
20
15
T
10
5
0
0 5 10 15 20 25 30 35 40 45 50
IF(av) (A)
δ
=tp/T
tp
Fig. 3: Relative variation of thermal impedance
junction to case versus pulse duration
Zth(j-c)/Rth(j-c)
1.0
0.8
δ = 0.5
0.6
δ = 0.2
0.4
δ = 0.1
0.2
Single pulse
0.0
1E-3 1E-2 1E-1 1E+0
tp(s)
δ
=tp/T
T
tp
Fig. 2: Forward voltage drop versus forward
current (per diode)
IFM(A)
200
100
Maximum values
Tj=125°C
Tj=125°C
Typical values
Tj=25°C
Maximum values
10
VFM(V)
1
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2
Fig. 4: Peak reverse recovery current versus
dIF/dt (90% confidence, per diode)
IRM(A)
25
VR=200V
Tj=125°C
20
IF=IF(av)
15
10
5
dIF/dt(A/µs)
0
0 50 100 150 200 250 300 350 400 450 500
IF=2 x IF(av)
IF=0.5 x IF(av)
Fig. 5: Reverse recovery time versus dIF/dt
(90% confidence, per diode)
trr(ns)
180
160
140
120
100
IF=2 x IF(av)
IF=IF(av)
80
60
40
20
0
0 50 100 150 200 250 300 350 400 450 500
IF=0.5 x IF(av)
dIF/dt(A/µs)
VR=200V
Tj=125°C
Fig. 6: Softness factor (tb/ta) versus dIF/dt
(typical values, per diode)
S factor
0.6
0.5
0.4
0.3
0.2
0.1
0.0
0 50 100 150 200 250 300 350 400 450 500
dIF/dt(A/µs)
VR=200V
Tj=125°C
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STTH8003CY
Fig. 7: Relative variation of dynamic parameters
versusjunctiontemperature(Reference:Tj = 125°C)
2.4
2.2
2.0
1.8
S factor
1.6
1.4
1.2
1.0
0.8
IRM
0.6
0.4
0.2
0.0
25 50 75 100 125
Tj(°C)
Fig. 9: Forward recovery time versus dIF/dt
(90% confidence, per diode)
tfr(ns)
500
400
IF=IF(av)
VFR=1.1 x VFmax
Tj=125°C
Fig. 8: Transient peak forward voltage versus
dIF/dt (90% confidence, per diode)
VFP(V)
10
IF=IF(av)
Tj=125°C
8
6
4
2
0
0 50 100 150 200 250 300 350 400 450 500
dIF/dt(A/µs)
300
200
100
dIF/dt(A/µs)
0
0 50 100 150 200 250 300 350 400 450 500
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Page 5
PACKAGE MECHANICAL DATA
Max247
STTH8003CY
DIMENSIONS
REF.
Millimeters Inches
Min. Max. Min. Max.
A 4.70 5.30 0.185 0.209
AE
A1 2.20 2.60 0.087 0.102
b 1.00 1.40 0.038 0.055
b1 2.00 2.40 0.079 0.094
D
b2 3.00 3.40 0.118 0.133
c 0.40 0.80 0.016 0.031
D 19.70 10.30 0.776 0.799
L1
A1
e 5.35 5.55 0.211 0.219
E 15.30 15.90 0.602 0.626
b1
L
b2
e
b
c
L 14.20 15.20 0.559 0.598
L1 3.70 4.30 0.146 0.169
Ordering code Marking Package Weight Base qty Deliverymode
STTH8003CY STTH8003CY Max247 4.4 g. 30 Tube
n
Cooling method: C
n
Epoxy meets UL94,V0
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